{"id":1754,"date":"2022-11-10T12:24:00","date_gmt":"2022-11-10T12:24:00","guid":{"rendered":"https:\/\/urbanastrophotography.com\/staging\/7355\/?p=1754"},"modified":"2026-09-19T07:46:42","modified_gmt":"2026-09-19T07:46:42","slug":"review-william-optics-50mm-guidescope-with-1-25-roto-lock","status":"publish","type":"post","link":"https:\/\/urbanastrophotography.com\/staging\/7355\/review-william-optics-50mm-guidescope-with-1-25-roto-lock\/","title":{"rendered":"Review: William Optics 50mm Guidescope \u2013 1.25&#8243; ROTO Lock"},"content":{"rendered":"\n<style>body.ua-editorial-page{background:#101315;color:#e8edef}body.ua-editorial-page #page{overflow:clip!important}body.ua-editorial-page #content>.wrapper,body.ua-editorial-page #primary,body.ua-editorial-page .singular-content-wrap{width:100%;max-width:none;padding-inline:0}.ua-editorial-post>.entry-header{display:none}.ua-editorial-post>.entry-content{max-width:1360px;margin:auto!important;padding:28px clamp(18px,3.2vw,44px) 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electricity.\",\"kind\":\"Article\",\"href\":\"\/staging\/7355\/how-to-use-mains-power-for-your-asiair-plus\/\",\"src\":\"\/staging\/7355\/wp-content\/uploads\/2022\/08\/MainsPower_1x1.jpg\"},\"1745\":{\"title\":\"Askar 130PHQ\",\"copy\":\"Explore my experience with the telescope.\",\"kind\":\"Review\",\"href\":\"\/staging\/7355\/review-askar-130phq-flatfield-astrograph\/\",\"src\":\"\/staging\/7355\/wp-content\/uploads\/2021\/06\/MyAstroKit_1x1.jpg\"},\"1747\":{\"title\":\"Dualband Filter Shootout\",\"copy\":\"Compare L-eXtreme, L-Ultimate and Colour Magic 6nm filters.\",\"kind\":\"Review\",\"href\":\"\/staging\/7355\/dualband-filter-shootout-l-extreme-vs-l-ultimate-vs-colour-magic-6nm\/\",\"src\":\"\/staging\/7355\/wp-content\/uploads\/2022\/10\/Dualband-shootout.jpg\"},\"1752\":{\"title\":\"Eagle Image Stacker\",\"copy\":\"Read my review of the image-stacking software.\",\"kind\":\"Review\",\"href\":\"\/staging\/7355\/review-eagle-image-stacker\/\",\"src\":\"\/staging\/7355\/wp-content\/uploads\/2022\/10\/EagleImageStacker_1x1.jpg\"},\"1754\":{\"title\":\"William Optics 50mm Guidescope\",\"copy\":\"Read my review of the ROTO Lock guidescope.\",\"kind\":\"Review\",\"href\":\"\/staging\/7355\/review-william-optics-50mm-guidescope-with-1-25-roto-lock\/\",\"src\":\"\/staging\/7355\/wp-content\/uploads\/2022\/11\/WOGuidescope_1x1.jpg\"},\"1834\":{\"title\":\"Talks and Presentations\",\"copy\":\"Explore my talks about astrophotography and the night sky.\",\"kind\":\"About\",\"href\":\"\/staging\/7355\/talks\/\",\"src\":\"\/staging\/7355\/wp-content\/uploads\/2022\/10\/Talks_1x1.jpg\"},\"1852\":{\"title\":\"Framing Custom Targets With ASIAIR\",\"copy\":\"Plan the framing of your next astrophotography 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filters.\",\"kind\":\"Review\",\"href\":\"\/staging\/7355\/review-askar-colour-magic-e2-sii-oiii-filter-e2-vs-d2\/\",\"src\":\"\/staging\/7355\/wp-content\/uploads\/2025\/07\/v2_E2_starless-3.jpg\"},\"9780\":{\"title\":\"Immersed in Starlight\",\"copy\":\"Explore my astrophotography exhibition.\",\"kind\":\"Article\",\"href\":\"\/staging\/7355\/exhibition-immersed-in-starlight\/\",\"src\":\"\/staging\/7355\/wp-content\/uploads\/2025\/11\/Immersed_1x1_UAres.webp\"},\"11623\":{\"title\":\"ZWO ASI 220MM Mini\",\"copy\":\"Read my review of the guide camera.\",\"kind\":\"Review\",\"href\":\"\/staging\/7355\/review-zwo-asi-220mm-mini\/\",\"src\":\"\/staging\/7355\/wp-content\/uploads\/2026\/02\/ZWO220MMUAres_1x1.webp\"},\"11624\":{\"title\":\"Askar M54 Off-Axis Guider\",\"copy\":\"Explore the off-axis guider in my setup.\",\"kind\":\"Review\",\"href\":\"\/staging\/7355\/review-askar-m54-off-axis-guider\/\",\"src\":\"\/staging\/7355\/wp-content\/uploads\/2026\/02\/AskarOAG_UAres_1x1.webp\"},\"11654\":{\"title\":\"StellarDrive X 6R PRO\",\"copy\":\"See how the mount performs in my imaging setup.\",\"kind\":\"Review\",\"href\":\"\/staging\/7355\/review-stellardrive-x-6r-pro-mount-darkframe-optics\/\",\"src\":\"\/staging\/7355\/wp-content\/uploads\/2026\/02\/001-Stellardrive-UAres_1x1-16-Jan-2026-NZ8_5637-LEE-PULLEN-PHOTOGRAPHY.webp\"},\"13036\":{\"title\":\"Svbony SV535\",\"copy\":\"Explore my review of the 105mm f\/2.8 astrograph.\",\"kind\":\"Review\",\"href\":\"\/staging\/7355\/review-svbony-sv535-105mm-f-2-8-astrograph\/\",\"src\":\"\/staging\/7355\/wp-content\/uploads\/2026\/03\/Svbony535_UAres_1x1.webp\"}},map={\"216\":[1258,3151,325],\"314\":[11654,11624,1258],\"317\":[1018,2544,2274],\"320\":[314,1018,1834],\"325\":[1096,1661,2274],\"327\":[3025,3151,1747],\"425\":[314,11654,2346],\"899\":[9780,320,1834],\"957\":[2544,3180,2346],\"1018\":[314,216,3151],\"1096\":[1661,1852,325],\"1182\":[2544,425,314],\"1236\":[314,1661,325],\"1258\":[216,3151,3005],\"1299\":[1745,13036,1381],\"1350\":[216,3180,425],\"1381\":[1400,1754,11624],\"1400\":[11623,1381,1754],\"1444\":[2544,2346,3180],\"1661\":[1096,314,325],\"1745\":[1299,13036,11624],\"1747\":[1958,5424,3151],\"1752\":[2544,1444,2132],\"1754\":[1381,11623,11624],\"1834\":[9780,2953,320],\"1852\":[1096,2274,2953],\"1958\":[5424,1747,3151],\"2132\":[2346,1444,2544],\"2274\":[1852,325,1018],\"2346\":[1444,3180,2132],\"2544\":[1444,1182,3180],\"2610\":[1958,5424,2544],\"2915\":[2953,1018,1852],\"2953\":[2915,1834,1018],\"3005\":[1258,11623,314],\"3025\":[327,3151,1747],\"3151\":[1747,3025,1958],\"3180\":[2544,2346,1258],\"5424\":[1958,1747,3151],\"9780\":[1834,899,320],\"11623\":[11624,1400,11654],\"11624\":[11623,1754,11654],\"11654\":[11624,11623,314],\"13036\":[1299,1745,1258]},id=post.id.replace('post-',''),items=map[id];if(!items)return;const section=document.createElement('section');section.id='related-content';section.className='ua-related-content';section.setAttribute('aria-labelledby','ua-related-heading');const heading=document.createElement('h2');heading.id='ua-related-heading';heading.textContent='Related content';const grid=document.createElement('div');grid.className='ua-related-grid';section.append(heading,grid);items.forEach(key=>{const item=cards[key],a=document.createElement('a'),img=document.createElement('img'),body=document.createElement('div'),kind=document.createElement('span'),title=document.createElement('h3'),copy=document.createElement('p'),more=document.createElement('span');a.className='ua-related-link';a.href=item.href;img.src=item.src;img.alt='';img.loading='lazy';img.decoding='async';img.width=800;img.height=600;body.className='ua-related-copy';kind.className='ua-related-kind';kind.textContent=item.kind;title.textContent=item.title;copy.textContent=id==='11623'&&key===1400?'Read my review of the other guide camera in the comparison.':item.copy;more.className='ua-related-more';more.textContent=item.kind==='Review'?'Read review \u2192':item.kind==='Article'?'Read article \u2192':'Explore \u2192';body.append(kind,title,copy,more);a.append(img,body);grid.append(a)});const footer=root.querySelector('.ua-editorial-footer');if(footer)footer.before(section);else root.append(section);post.closest('main')?.querySelector('nav.post-navigation')?.remove();}if(document.readyState==='loading')document.addEventListener('DOMContentLoaded',addRelated);else addRelated();})();<\/script>\n\n\n<script type=\"application\/json\" class=\"ua-editorial-config\">{\"id\": 1754, \"kind\": \"Reviews\", \"route\": \"reviews\", \"main\": [[0, \"Overview\"], [1, \"Specifications\"], [2, \"ROTO Lock\"], [3, \"Attachment\"], [4, \"In use\"], [5, \"Where to buy\"]], \"insert\": [], \"rollout\": true}<\/script>\n\n\n<div class=\"wp-block-cover alignfull wp-duotone-unset-1\" style=\"min-height:500px;aspect-ratio:unset;\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"880\" height=\"586\" class=\"wp-block-cover__image-background wp-image-1873 size-full\" alt=\"William Optics 50mm Guidescope with 1.25&quot; ROTO Lock\" src=\"https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/013-October-06-2022-Reviews-web-res-DSC_6603-PULLEN.jpg?resize=880%2C586&#038;ssl=1\" data-object-fit=\"cover\" srcset=\"https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/013-October-06-2022-Reviews-web-res-DSC_6603-PULLEN.jpg?w=2048&amp;ssl=1 2048w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/013-October-06-2022-Reviews-web-res-DSC_6603-PULLEN.jpg?resize=300%2C200&amp;ssl=1 300w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/013-October-06-2022-Reviews-web-res-DSC_6603-PULLEN.jpg?resize=1024%2C682&amp;ssl=1 1024w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/013-October-06-2022-Reviews-web-res-DSC_6603-PULLEN.jpg?resize=768%2C511&amp;ssl=1 768w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/013-October-06-2022-Reviews-web-res-DSC_6603-PULLEN.jpg?resize=1536%2C1022&amp;ssl=1 1536w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/013-October-06-2022-Reviews-web-res-DSC_6603-PULLEN.jpg?resize=500%2C333&amp;ssl=1 500w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/013-October-06-2022-Reviews-web-res-DSC_6603-PULLEN.jpg?resize=800%2C532&amp;ssl=1 800w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/013-October-06-2022-Reviews-web-res-DSC_6603-PULLEN.jpg?resize=1280%2C852&amp;ssl=1 1280w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/013-October-06-2022-Reviews-web-res-DSC_6603-PULLEN.jpg?resize=1920%2C1278&amp;ssl=1 1920w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/013-October-06-2022-Reviews-web-res-DSC_6603-PULLEN.jpg?resize=507%2C338&amp;ssl=1 507w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/013-October-06-2022-Reviews-web-res-DSC_6603-PULLEN.jpg?w=1760&amp;ssl=1 1760w\" sizes=\"auto, (max-width: 880px) 100vw, 880px\" \/><span aria-hidden=\"true\" class=\"wp-block-cover__background has-eighty-black-background-color has-background-dim-40 has-background-dim\"><\/span><div class=\"wp-block-cover__inner-container is-layout-constrained wp-block-cover-is-layout-constrained\"><style>.wp-block-kadence-advancedheading.kt-adv-heading1754_ac4706-32, .wp-block-kadence-advancedheading.kt-adv-heading1754_ac4706-32[data-kb-block=\"kb-adv-heading1754_ac4706-32\"]{text-align:center;font-size:var(--global-kb-font-size-xxl, 4rem);font-style:normal;text-shadow:0px 3px 6px #000000;}.wp-block-kadence-advancedheading.kt-adv-heading1754_ac4706-32 mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading1754_ac4706-32[data-kb-block=\"kb-adv-heading1754_ac4706-32\"] mark.kt-highlight{font-style:normal;color:#f76a0c;-webkit-box-decoration-break:clone;box-decoration-break:clone;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;}.wp-block-kadence-advancedheading.kt-adv-heading1754_ac4706-32 img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading1754_ac4706-32[data-kb-block=\"kb-adv-heading1754_ac4706-32\"] img.kb-inline-image{width:150px;vertical-align:baseline;}@media all and (max-width: 1024px){.wp-block-kadence-advancedheading.kt-adv-heading1754_ac4706-32, .wp-block-kadence-advancedheading.kt-adv-heading1754_ac4706-32[data-kb-block=\"kb-adv-heading1754_ac4706-32\"]{text-shadow:0px 3px 6px #000000;}}@media all and (max-width: 767px){.wp-block-kadence-advancedheading.kt-adv-heading1754_ac4706-32, .wp-block-kadence-advancedheading.kt-adv-heading1754_ac4706-32[data-kb-block=\"kb-adv-heading1754_ac4706-32\"]{text-shadow:0px 3px 6px #000000;}}<\/style>\n<h1 class=\"kt-adv-heading1754_ac4706-32 wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading1754_ac4706-32\">REVIEW:<br>William Optics 50mm Guidescope \u2013 1.25&#8243; ROTO Lock<\/h1>\n\n\n<style>.wp-block-kadence-advancedheading.kt-adv-heading1754_edaef1-92, .wp-block-kadence-advancedheading.kt-adv-heading1754_edaef1-92[data-kb-block=\"kb-adv-heading1754_edaef1-92\"]{text-align:center;font-weight:400;font-style:normal;font-family:Oxygen;text-shadow:1px 1px 6px #000000;}.wp-block-kadence-advancedheading.kt-adv-heading1754_edaef1-92 mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading1754_edaef1-92[data-kb-block=\"kb-adv-heading1754_edaef1-92\"] mark.kt-highlight{font-style:normal;color:#f76a0c;-webkit-box-decoration-break:clone;box-decoration-break:clone;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;}.wp-block-kadence-advancedheading.kt-adv-heading1754_edaef1-92 img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading1754_edaef1-92[data-kb-block=\"kb-adv-heading1754_edaef1-92\"] img.kb-inline-image{width:150px;vertical-align:baseline;}@media all and (max-width: 1024px){.wp-block-kadence-advancedheading.kt-adv-heading1754_edaef1-92, .wp-block-kadence-advancedheading.kt-adv-heading1754_edaef1-92[data-kb-block=\"kb-adv-heading1754_edaef1-92\"]{text-shadow:1px 1px 6px #000000;}}@media all and (max-width: 767px){.wp-block-kadence-advancedheading.kt-adv-heading1754_edaef1-92, .wp-block-kadence-advancedheading.kt-adv-heading1754_edaef1-92[data-kb-block=\"kb-adv-heading1754_edaef1-92\"]{text-shadow:1px 1px 6px #000000;}}<\/style>\n<p class=\"kt-adv-heading1754_edaef1-92 wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading1754_edaef1-92\">First published November 2022<br>Last updated January 2026<\/p>\n\n\n<style>.wp-block-kadence-spacer.kt-block-spacer-1754_2da108-a2 .kt-block-spacer{height:6px;}.wp-block-kadence-spacer.kt-block-spacer-1754_2da108-a2 .kt-divider{border-top-width:2px;border-top-color:rgba(255, 255, 255, 0.60);width:30%;border-top-style:solid;}<\/style>\n<div class=\"wp-block-kadence-spacer aligncenter kt-block-spacer-1754_2da108-a2\"><div class=\"kt-block-spacer kt-block-spacer-halign-center\"><hr class=\"kt-divider\"\/><\/div><\/div>\n<\/div><\/div>\n\n\n<style>.kb-row-layout-wrap.wp-block-kadence-rowlayout.kb-row-layout-id1754_90e801-3c{margin-top:var(--global-kb-spacing-md, 2rem);}.kb-row-layout-id1754_90e801-3c > .kt-row-column-wrap{align-content:start;}:where(.kb-row-layout-id1754_90e801-3c > .kt-row-column-wrap) > .wp-block-kadence-column{justify-content:start;}.kb-row-layout-id1754_90e801-3c > .kt-row-column-wrap{column-gap:var(--global-kb-gap-md, 2rem);row-gap:var(--global-kb-gap-none, 0rem );max-width:900px;margin-left:auto;margin-right:auto;padding-top:var(--global-kb-spacing-sm, 1.5rem);padding-bottom:var(--global-kb-spacing-sm, 1.5rem);grid-template-columns:minmax(0, calc(30% - ((var(--global-kb-gap-md, 2rem) * 1 )\/2)))minmax(0, calc(70% - ((var(--global-kb-gap-md, 2rem) * 1 )\/2)));}.kb-row-layout-id1754_90e801-3c{border-top-right-radius:50px;border-bottom-left-radius:0px;overflow:clip;isolation:isolate;}.kb-row-layout-id1754_90e801-3c > .kt-row-layout-overlay{border-top-right-radius:50px;border-bottom-left-radius:0px;}.kb-row-layout-id1754_90e801-3c > .kt-row-layout-overlay{opacity:0.30;}.kb-row-layout-id1754_90e801-3c .kt-row-layout-bottom-sep{height:100px;}.kb-row-layout-id1754_90e801-3c .kt-row-layout-bottom-sep svg{width:100%;}.kb-row-layout-id1754_90e801-3c .kt-row-layout-bottom-sep svg{fill:#ffffff!important;}@media all and (max-width: 1024px){.kb-row-layout-id1754_90e801-3c > .kt-row-column-wrap{grid-template-columns:repeat(2, minmax(0, 1fr));}}@media all and (max-width: 1024px){.kb-row-layout-id1754_90e801-3c .kt-row-layout-bottom-sep{height:px;}}@media all and (max-width: 1024px){.kb-row-layout-id1754_90e801-3c .kt-row-layout-bottom-sep svg{width:%;}}@media all and (max-width: 767px){.kb-row-layout-id1754_90e801-3c > .kt-row-column-wrap{grid-template-columns:minmax(0, 1fr);}.kb-row-layout-id1754_90e801-3c .kt-row-layout-bottom-sep{height:px;}.kb-row-layout-id1754_90e801-3c .kt-row-layout-bottom-sep svg{width:%;}}<\/style><div class=\"kb-row-layout-wrap kb-row-layout-id1754_90e801-3c alignnone has-eighty-black-background-color kt-row-has-bg wp-block-kadence-rowlayout\" id=\"intro\"><div class=\"kt-row-column-wrap kt-has-2-columns kt-row-layout-equal kt-tab-layout-inherit kt-mobile-layout-row kt-row-valign-top\">\n<style>.kadence-column1754_ca7d8b-db > .kt-inside-inner-col,.kadence-column1754_ca7d8b-db > .kt-inside-inner-col:before{border-top-left-radius:0px;border-top-right-radius:0px;border-bottom-right-radius:0px;border-bottom-left-radius:0px;}.kadence-column1754_ca7d8b-db > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column1754_ca7d8b-db > .kt-inside-inner-col{flex-direction:column;}.kadence-column1754_ca7d8b-db > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column1754_ca7d8b-db > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column1754_ca7d8b-db{position:relative;}@media all and (max-width: 1024px){.kadence-column1754_ca7d8b-db > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column1754_ca7d8b-db > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column1754_ca7d8b-db\"><div class=\"kt-inside-inner-col\"><style>.wp-block-kadence-advancedbtn.kb-btns1754_df2769-c9{padding-top:6px;gap:3px;flex-direction:row;justify-content:flex-start;align-items:center;}.kt-btns1754_df2769-c9 .kt-button{font-weight:normal;font-style:normal;}.kt-btns1754_df2769-c9 .kt-btn-wrap-0{margin-right:5px;}.wp-block-kadence-advancedbtn.kt-btns1754_df2769-c9 .kt-btn-wrap-0 .kt-button{color:#555555;border-color:#555555;}.wp-block-kadence-advancedbtn.kt-btns1754_df2769-c9 .kt-btn-wrap-0 .kt-button:hover, .wp-block-kadence-advancedbtn.kt-btns1754_df2769-c9 .kt-btn-wrap-0 .kt-button:focus{color:#ffffff;border-color:#444444;}.wp-block-kadence-advancedbtn.kt-btns1754_df2769-c9 .kt-btn-wrap-0 .kt-button::before{display:none;}.wp-block-kadence-advancedbtn.kt-btns1754_df2769-c9 .kt-btn-wrap-0 .kt-button:hover, .wp-block-kadence-advancedbtn.kt-btns1754_df2769-c9 .kt-btn-wrap-0 .kt-button:focus{background:#444444;}@media all and (max-width: 767px){.wp-block-kadence-advancedbtn.kb-btns1754_df2769-c9{justify-content:center;}}<\/style>\n<div class=\"toc-rail wp-block-kadence-advancedbtn kb-buttons-wrap kb-btns1754_df2769-c9\"><style>.wp-block-kadence-advancedbtn .kb-btn1754_8a069b-68.kb-button, ul.menu .wp-block-kadence-advancedbtn .kb-btn1754_8a069b-68.kb-button{width:210px;}.wp-block-kadence-advancedbtn .kb-btn1754_8a069b-68.kb-button{color:#ffffff;background:#363636;font-size:15px;line-height:1.3;letter-spacing:-0.01px;font-family:Oxygen;font-weight:400;text-transform:none;border-top-left-radius:6px;border-top-right-radius:6px;border-bottom-right-radius:6px;border-bottom-left-radius:6px;border-top:1px solid rgba(255,255,255,0.22);border-right:1px solid rgba(255,255,255,0.22);border-bottom:1px solid rgba(255,255,255,0.22);border-left:1px solid rgba(255,255,255,0.22);}.wp-block-kadence-advancedbtn .kb-btn1754_8a069b-68.kb-button:hover, .wp-block-kadence-advancedbtn .kb-btn1754_8a069b-68.kb-button:focus{color:#ffffff;background:#363636;border-top-left-radius:6px;border-top-right-radius:6px;border-bottom-right-radius:6px;border-bottom-left-radius:6px;border-top:1px solid rgba(255,255,255,0.35);border-right:1px solid rgba(255,255,255,0.35);border-bottom:1px solid rgba(255,255,255,0.35);border-left:1px solid rgba(255,255,255,0.35);}@media all and (max-width: 1024px){.wp-block-kadence-advancedbtn .kb-btn1754_8a069b-68.kb-button{border-top:1px solid rgba(255,255,255,0.22);border-right:1px solid rgba(255,255,255,0.22);border-bottom:1px solid rgba(255,255,255,0.22);border-left:1px solid rgba(255,255,255,0.22);}}@media all and (max-width: 1024px){.wp-block-kadence-advancedbtn .kb-btn1754_8a069b-68.kb-button:hover, .wp-block-kadence-advancedbtn .kb-btn1754_8a069b-68.kb-button:focus{border-top:1px solid rgba(255,255,255,0.35);border-right:1px solid rgba(255,255,255,0.35);border-bottom:1px solid rgba(255,255,255,0.35);border-left:1px solid rgba(255,255,255,0.35);}}@media all and (max-width: 767px){.wp-block-kadence-advancedbtn .kb-btn1754_8a069b-68.kb-button{border-top:1px solid rgba(255,255,255,0.22);border-right:1px solid rgba(255,255,255,0.22);border-bottom:1px solid rgba(255,255,255,0.22);border-left:1px solid rgba(255,255,255,0.22);}.wp-block-kadence-advancedbtn .kb-btn1754_8a069b-68.kb-button:hover, .wp-block-kadence-advancedbtn .kb-btn1754_8a069b-68.kb-button:focus{border-top:1px solid rgba(255,255,255,0.35);border-right:1px solid rgba(255,255,255,0.35);border-bottom:1px solid rgba(255,255,255,0.35);border-left:1px solid rgba(255,255,255,0.35);}}<\/style><a class=\"kb-button kt-button button kb-btn1754_8a069b-68 kt-btn-size-small kt-btn-width-type-fixed kb-btn-global-fill kt-btn-has-text-true kt-btn-has-svg-false wp-block-kadence-singlebtn\" href=\"#intro\"><span class=\"kt-btn-inner-text\"><strong>Contents<\/strong><\/span><\/a>\n\n<style>.wp-block-kadence-advancedbtn .kb-btn1754_9c16d1-ef.kb-button, ul.menu .wp-block-kadence-advancedbtn .kb-btn1754_9c16d1-ef.kb-button{width:210px;}.wp-block-kadence-advancedbtn .kb-btn1754_9c16d1-ef.kb-button{color:#e0e0e0;background:rgba(0,0,0,0);font-size:15px;line-height:1.3;letter-spacing:-0.01px;font-family:Oxygen;font-weight:400;text-transform:none;border-top-left-radius:6px;border-top-right-radius:6px;border-bottom-right-radius:6px;border-bottom-left-radius:6px;border-top:1px solid rgba(255,255,255,0.22);border-right:1px solid rgba(255,255,255,0.22);border-bottom:1px solid rgba(255,255,255,0.22);border-left:1px solid rgba(255,255,255,0.22);}.wp-block-kadence-advancedbtn .kb-btn1754_9c16d1-ef.kb-button:hover, .wp-block-kadence-advancedbtn .kb-btn1754_9c16d1-ef.kb-button:focus{color:#ffffff;background:rgba(255,255,255,0.08);border-top:1px solid rgba(255,255,255,0.35);border-right:1px solid rgba(255,255,255,0.35);border-bottom:1px solid rgba(255,255,255,0.35);border-left:1px solid rgba(255,255,255,0.35);}@media all and (max-width: 1024px){.wp-block-kadence-advancedbtn .kb-btn1754_9c16d1-ef.kb-button{border-top:1px solid rgba(255,255,255,0.22);border-right:1px solid rgba(255,255,255,0.22);border-bottom:1px solid rgba(255,255,255,0.22);border-left:1px solid rgba(255,255,255,0.22);}}@media all and (max-width: 1024px){.wp-block-kadence-advancedbtn .kb-btn1754_9c16d1-ef.kb-button:hover, .wp-block-kadence-advancedbtn .kb-btn1754_9c16d1-ef.kb-button:focus{border-top:1px solid rgba(255,255,255,0.35);border-right:1px solid rgba(255,255,255,0.35);border-bottom:1px solid rgba(255,255,255,0.35);border-left:1px solid rgba(255,255,255,0.35);}}@media all and (max-width: 767px){.wp-block-kadence-advancedbtn .kb-btn1754_9c16d1-ef.kb-button{border-top:1px solid rgba(255,255,255,0.22);border-right:1px solid rgba(255,255,255,0.22);border-bottom:1px solid rgba(255,255,255,0.22);border-left:1px solid rgba(255,255,255,0.22);}.wp-block-kadence-advancedbtn .kb-btn1754_9c16d1-ef.kb-button:hover, .wp-block-kadence-advancedbtn .kb-btn1754_9c16d1-ef.kb-button:focus{border-top:1px solid rgba(255,255,255,0.35);border-right:1px solid rgba(255,255,255,0.35);border-bottom:1px solid rgba(255,255,255,0.35);border-left:1px solid rgba(255,255,255,0.35);}}<\/style><a class=\"kb-button kt-button button kb-btn1754_9c16d1-ef kt-btn-size-small kt-btn-width-type-fixed kb-btn-global-fill kt-btn-has-text-true kt-btn-has-svg-false wp-block-kadence-singlebtn\" href=\"#specs\"><span class=\"kt-btn-inner-text\">Specs<\/span><\/a>\n\n<style>.wp-block-kadence-advancedbtn .kb-btn1754_75bbbc-7d.kb-button, ul.menu .wp-block-kadence-advancedbtn .kb-btn1754_75bbbc-7d.kb-button{width:210px;}.wp-block-kadence-advancedbtn .kb-btn1754_75bbbc-7d.kb-button{color:#e0e0e0;background:rgba(0,0,0,0);font-size:15px;line-height:1.3;letter-spacing:-0.01px;font-family:Oxygen;font-weight:400;text-transform:none;border-top-left-radius:6px;border-top-right-radius:6px;border-bottom-right-radius:6px;border-bottom-left-radius:6px;border-top:1px solid rgba(255,255,255,0.22);border-right:1px solid rgba(255,255,255,0.22);border-bottom:1px solid rgba(255,255,255,0.22);border-left:1px solid rgba(255,255,255,0.22);}.wp-block-kadence-advancedbtn .kb-btn1754_75bbbc-7d.kb-button:hover, .wp-block-kadence-advancedbtn .kb-btn1754_75bbbc-7d.kb-button:focus{color:#ffffff;background:rgba(255,255,255,0.08);border-top:1px solid rgba(255,255,255,0.35);border-right:1px solid rgba(255,255,255,0.35);border-bottom:1px solid rgba(255,255,255,0.35);border-left:1px solid rgba(255,255,255,0.35);}@media all and (max-width: 1024px){.wp-block-kadence-advancedbtn .kb-btn1754_75bbbc-7d.kb-button{border-top:1px solid rgba(255,255,255,0.22);border-right:1px solid rgba(255,255,255,0.22);border-bottom:1px solid rgba(255,255,255,0.22);border-left:1px solid rgba(255,255,255,0.22);}}@media all and (max-width: 1024px){.wp-block-kadence-advancedbtn .kb-btn1754_75bbbc-7d.kb-button:hover, .wp-block-kadence-advancedbtn .kb-btn1754_75bbbc-7d.kb-button:focus{border-top:1px solid rgba(255,255,255,0.35);border-right:1px solid rgba(255,255,255,0.35);border-bottom:1px solid rgba(255,255,255,0.35);border-left:1px solid rgba(255,255,255,0.35);}}@media all and (max-width: 767px){.wp-block-kadence-advancedbtn .kb-btn1754_75bbbc-7d.kb-button{border-top:1px solid rgba(255,255,255,0.22);border-right:1px solid rgba(255,255,255,0.22);border-bottom:1px solid rgba(255,255,255,0.22);border-left:1px solid rgba(255,255,255,0.22);}.wp-block-kadence-advancedbtn .kb-btn1754_75bbbc-7d.kb-button:hover, .wp-block-kadence-advancedbtn .kb-btn1754_75bbbc-7d.kb-button:focus{border-top:1px solid rgba(255,255,255,0.35);border-right:1px solid rgba(255,255,255,0.35);border-bottom:1px solid rgba(255,255,255,0.35);border-left:1px solid rgba(255,255,255,0.35);}}<\/style><a class=\"kb-button kt-button button kb-btn1754_75bbbc-7d kt-btn-size-small kt-btn-width-type-fixed kb-btn-global-fill kt-btn-has-text-true kt-btn-has-svg-false wp-block-kadence-singlebtn\" href=\"#ROTO-lock\"><span class=\"kt-btn-inner-text\">ROTO Lock<\/span><\/a>\n\n<style>.wp-block-kadence-advancedbtn .kb-btn1754_a0d843-26.kb-button, ul.menu .wp-block-kadence-advancedbtn .kb-btn1754_a0d843-26.kb-button{width:210px;}.wp-block-kadence-advancedbtn .kb-btn1754_a0d843-26.kb-button{color:#e0e0e0;background:rgba(0,0,0,0);font-size:15px;line-height:1.3;letter-spacing:-0.01px;font-family:Oxygen;font-weight:400;text-transform:none;border-top-left-radius:6px;border-top-right-radius:6px;border-bottom-right-radius:6px;border-bottom-left-radius:6px;border-top:1px solid rgba(255,255,255,0.22);border-right:1px solid rgba(255,255,255,0.22);border-bottom:1px solid rgba(255,255,255,0.22);border-left:1px solid rgba(255,255,255,0.22);}.wp-block-kadence-advancedbtn .kb-btn1754_a0d843-26.kb-button:hover, .wp-block-kadence-advancedbtn .kb-btn1754_a0d843-26.kb-button:focus{color:#ffffff;background:rgba(255,255,255,0.08);border-top:1px solid rgba(255,255,255,0.35);border-right:1px solid rgba(255,255,255,0.35);border-bottom:1px solid rgba(255,255,255,0.35);border-left:1px solid rgba(255,255,255,0.35);}@media all and (max-width: 1024px){.wp-block-kadence-advancedbtn .kb-btn1754_a0d843-26.kb-button{border-top:1px solid rgba(255,255,255,0.22);border-right:1px solid rgba(255,255,255,0.22);border-bottom:1px solid rgba(255,255,255,0.22);border-left:1px solid rgba(255,255,255,0.22);}}@media all and (max-width: 1024px){.wp-block-kadence-advancedbtn .kb-btn1754_a0d843-26.kb-button:hover, .wp-block-kadence-advancedbtn .kb-btn1754_a0d843-26.kb-button:focus{border-top:1px solid rgba(255,255,255,0.35);border-right:1px solid rgba(255,255,255,0.35);border-bottom:1px solid rgba(255,255,255,0.35);border-left:1px solid rgba(255,255,255,0.35);}}@media all and (max-width: 767px){.wp-block-kadence-advancedbtn .kb-btn1754_a0d843-26.kb-button{border-top:1px solid rgba(255,255,255,0.22);border-right:1px solid rgba(255,255,255,0.22);border-bottom:1px solid rgba(255,255,255,0.22);border-left:1px solid rgba(255,255,255,0.22);}.wp-block-kadence-advancedbtn .kb-btn1754_a0d843-26.kb-button:hover, .wp-block-kadence-advancedbtn .kb-btn1754_a0d843-26.kb-button:focus{border-top:1px solid rgba(255,255,255,0.35);border-right:1px solid rgba(255,255,255,0.35);border-bottom:1px solid rgba(255,255,255,0.35);border-left:1px solid rgba(255,255,255,0.35);}}<\/style><a class=\"kb-button kt-button button kb-btn1754_a0d843-26 kt-btn-size-small kt-btn-width-type-fixed kb-btn-global-fill kt-btn-has-text-true kt-btn-has-svg-false wp-block-kadence-singlebtn\" href=\"#bracket-attachment\"><span class=\"kt-btn-inner-text\">Bracket attachment<\/span><\/a>\n\n<style>.wp-block-kadence-advancedbtn .kb-btn1754_601160-b6.kb-button, ul.menu .wp-block-kadence-advancedbtn .kb-btn1754_601160-b6.kb-button{width:210px;}.wp-block-kadence-advancedbtn .kb-btn1754_601160-b6.kb-button{color:#e0e0e0;background:rgba(0,0,0,0);font-size:15px;line-height:1.3;letter-spacing:-0.01px;font-family:Oxygen;font-weight:400;text-transform:none;border-top-left-radius:6px;border-top-right-radius:6px;border-bottom-right-radius:6px;border-bottom-left-radius:6px;border-top:1px solid rgba(255,255,255,0.22);border-right:1px solid rgba(255,255,255,0.22);border-bottom:1px solid rgba(255,255,255,0.22);border-left:1px solid rgba(255,255,255,0.22);}.wp-block-kadence-advancedbtn .kb-btn1754_601160-b6.kb-button:hover, .wp-block-kadence-advancedbtn .kb-btn1754_601160-b6.kb-button:focus{color:#ffffff;background:rgba(255,255,255,0.08);border-top:1px solid rgba(255,255,255,0.35);border-right:1px solid rgba(255,255,255,0.35);border-bottom:1px solid rgba(255,255,255,0.35);border-left:1px solid rgba(255,255,255,0.35);}@media all and (max-width: 1024px){.wp-block-kadence-advancedbtn .kb-btn1754_601160-b6.kb-button{border-top:1px solid rgba(255,255,255,0.22);border-right:1px solid rgba(255,255,255,0.22);border-bottom:1px solid rgba(255,255,255,0.22);border-left:1px solid rgba(255,255,255,0.22);}}@media all and (max-width: 1024px){.wp-block-kadence-advancedbtn .kb-btn1754_601160-b6.kb-button:hover, .wp-block-kadence-advancedbtn .kb-btn1754_601160-b6.kb-button:focus{border-top:1px solid rgba(255,255,255,0.35);border-right:1px solid rgba(255,255,255,0.35);border-bottom:1px solid rgba(255,255,255,0.35);border-left:1px solid rgba(255,255,255,0.35);}}@media all and (max-width: 767px){.wp-block-kadence-advancedbtn .kb-btn1754_601160-b6.kb-button{border-top:1px solid rgba(255,255,255,0.22);border-right:1px solid rgba(255,255,255,0.22);border-bottom:1px solid rgba(255,255,255,0.22);border-left:1px solid rgba(255,255,255,0.22);}.wp-block-kadence-advancedbtn .kb-btn1754_601160-b6.kb-button:hover, .wp-block-kadence-advancedbtn .kb-btn1754_601160-b6.kb-button:focus{border-top:1px solid rgba(255,255,255,0.35);border-right:1px solid rgba(255,255,255,0.35);border-bottom:1px solid rgba(255,255,255,0.35);border-left:1px solid rgba(255,255,255,0.35);}}<\/style><a class=\"kb-button kt-button button kb-btn1754_601160-b6 kt-btn-size-small kt-btn-width-type-fixed kb-btn-global-fill kt-btn-has-text-true kt-btn-has-svg-false wp-block-kadence-singlebtn\" href=\"#effectiveness\"><span class=\"kt-btn-inner-text\">Effectiveness<\/span><\/a>\n\n<style>.wp-block-kadence-advancedbtn .kb-btn1754_e76d94-65.kb-button, ul.menu .wp-block-kadence-advancedbtn .kb-btn1754_e76d94-65.kb-button{width:210px;}.wp-block-kadence-advancedbtn .kb-btn1754_e76d94-65.kb-button{color:#e0e0e0;background:rgba(0,0,0,0);font-size:15px;line-height:1.3;letter-spacing:-0.01px;font-family:Oxygen;font-weight:400;text-transform:none;border-top-left-radius:6px;border-top-right-radius:6px;border-bottom-right-radius:6px;border-bottom-left-radius:6px;border-top:1px solid rgba(255,255,255,0.22);border-right:1px solid rgba(255,255,255,0.22);border-bottom:1px solid rgba(255,255,255,0.22);border-left:1px solid rgba(255,255,255,0.22);}.wp-block-kadence-advancedbtn .kb-btn1754_e76d94-65.kb-button:hover, .wp-block-kadence-advancedbtn .kb-btn1754_e76d94-65.kb-button:focus{color:#ffffff;background:rgba(255,255,255,0.08);border-top:1px solid rgba(255,255,255,0.35);border-right:1px solid rgba(255,255,255,0.35);border-bottom:1px solid rgba(255,255,255,0.35);border-left:1px solid rgba(255,255,255,0.35);}@media all and (max-width: 1024px){.wp-block-kadence-advancedbtn .kb-btn1754_e76d94-65.kb-button{border-top:1px solid rgba(255,255,255,0.22);border-right:1px solid rgba(255,255,255,0.22);border-bottom:1px solid rgba(255,255,255,0.22);border-left:1px solid rgba(255,255,255,0.22);}}@media all and (max-width: 1024px){.wp-block-kadence-advancedbtn .kb-btn1754_e76d94-65.kb-button:hover, .wp-block-kadence-advancedbtn .kb-btn1754_e76d94-65.kb-button:focus{border-top:1px solid rgba(255,255,255,0.35);border-right:1px solid rgba(255,255,255,0.35);border-bottom:1px solid rgba(255,255,255,0.35);border-left:1px solid rgba(255,255,255,0.35);}}@media all and (max-width: 767px){.wp-block-kadence-advancedbtn .kb-btn1754_e76d94-65.kb-button{border-top:1px solid rgba(255,255,255,0.22);border-right:1px solid rgba(255,255,255,0.22);border-bottom:1px solid rgba(255,255,255,0.22);border-left:1px solid rgba(255,255,255,0.22);}.wp-block-kadence-advancedbtn .kb-btn1754_e76d94-65.kb-button:hover, .wp-block-kadence-advancedbtn .kb-btn1754_e76d94-65.kb-button:focus{border-top:1px solid rgba(255,255,255,0.35);border-right:1px solid rgba(255,255,255,0.35);border-bottom:1px solid rgba(255,255,255,0.35);border-left:1px solid rgba(255,255,255,0.35);}}<\/style><a class=\"kb-button kt-button button kb-btn1754_e76d94-65 kt-btn-size-small kt-btn-width-type-fixed kb-btn-global-fill kt-btn-has-text-true kt-btn-has-svg-false wp-block-kadence-singlebtn\" href=\"#where-to-buy\"><span class=\"kt-btn-inner-text\">Where to buy<\/span><\/a><\/div>\n<\/div><\/div>\n\n\n<style>.kadence-column1754_1e45b4-c6 > .kt-inside-inner-col,.kadence-column1754_1e45b4-c6 > .kt-inside-inner-col:before{border-top-left-radius:0px;border-top-right-radius:0px;border-bottom-right-radius:0px;border-bottom-left-radius:0px;}.kadence-column1754_1e45b4-c6 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column1754_1e45b4-c6 > .kt-inside-inner-col{flex-direction:column;}.kadence-column1754_1e45b4-c6 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column1754_1e45b4-c6 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column1754_1e45b4-c6{position:relative;}@media all and (max-width: 1024px){.kadence-column1754_1e45b4-c6 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column1754_1e45b4-c6 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column1754_1e45b4-c6\"><div class=\"kt-inside-inner-col\"><style>.wp-block-kadence-advancedheading.kt-adv-heading1754_5597c8-25, .wp-block-kadence-advancedheading.kt-adv-heading1754_5597c8-25[data-kb-block=\"kb-adv-heading1754_5597c8-25\"]{font-style:normal;}.wp-block-kadence-advancedheading.kt-adv-heading1754_5597c8-25 mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading1754_5597c8-25[data-kb-block=\"kb-adv-heading1754_5597c8-25\"] mark.kt-highlight{font-style:normal;color:#f76a0c;-webkit-box-decoration-break:clone;box-decoration-break:clone;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;}.wp-block-kadence-advancedheading.kt-adv-heading1754_5597c8-25 img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading1754_5597c8-25[data-kb-block=\"kb-adv-heading1754_5597c8-25\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<h3 class=\"kt-adv-heading1754_5597c8-25 wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading1754_5597c8-25\">Intro<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><span style=\"color: #fffffe;\" class=\"stk-highlight\"><span style=\"color: #fffffe;\" class=\"stk-highlight\">Guiding is a vital part of successful astrophotography, particularly when working at longer focal lengths or under challenging conditions. There are many guidescopes available, but the William Optics 50mm Guidescope with 1.25 inch ROTO Lock, reviewed here, stands out as a well built and reliable option. In this review, I look at its design, usability, and real world performance as part of a practical guiding setup.<\/span><\/span><\/p>\n\n\n\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;6aafc6bbe9a99&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"6aafc6bbe9a99\" class=\"wp-block-image size-full wp-lightbox-container\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"880\" height=\"586\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on--pointerdown=\"actions.preloadImage\" data-wp-on--pointerenter=\"actions.preloadImageWithDelay\" data-wp-on--pointerleave=\"actions.cancelPreload\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" src=\"https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/013-October-06-2022-Reviews-web-res-watermarked-DSC_6603-PULLEN.jpg?resize=880%2C586&#038;ssl=1\" alt=\"William Optics 50mm Guidescope with 1.25&quot; ROTO Lock\" class=\"wp-image-1854\" srcset=\"https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/013-October-06-2022-Reviews-web-res-watermarked-DSC_6603-PULLEN.jpg?w=2048&amp;ssl=1 2048w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/013-October-06-2022-Reviews-web-res-watermarked-DSC_6603-PULLEN.jpg?resize=300%2C200&amp;ssl=1 300w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/013-October-06-2022-Reviews-web-res-watermarked-DSC_6603-PULLEN.jpg?resize=1024%2C682&amp;ssl=1 1024w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/013-October-06-2022-Reviews-web-res-watermarked-DSC_6603-PULLEN.jpg?resize=768%2C511&amp;ssl=1 768w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/013-October-06-2022-Reviews-web-res-watermarked-DSC_6603-PULLEN.jpg?resize=1536%2C1022&amp;ssl=1 1536w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/013-October-06-2022-Reviews-web-res-watermarked-DSC_6603-PULLEN.jpg?resize=500%2C333&amp;ssl=1 500w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/013-October-06-2022-Reviews-web-res-watermarked-DSC_6603-PULLEN.jpg?resize=800%2C532&amp;ssl=1 800w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/013-October-06-2022-Reviews-web-res-watermarked-DSC_6603-PULLEN.jpg?resize=1280%2C852&amp;ssl=1 1280w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/013-October-06-2022-Reviews-web-res-watermarked-DSC_6603-PULLEN.jpg?resize=1920%2C1278&amp;ssl=1 1920w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/013-October-06-2022-Reviews-web-res-watermarked-DSC_6603-PULLEN.jpg?resize=507%2C338&amp;ssl=1 507w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/013-October-06-2022-Reviews-web-res-watermarked-DSC_6603-PULLEN.jpg?w=1760&amp;ssl=1 1760w\" sizes=\"auto, (max-width: 880px) 100vw, 880px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\tdata-wp-bind--aria-label=\"state.thisImage.triggerButtonAriaLabel\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.thisImage.buttonRight\"\n\t\t\tdata-wp-style--top=\"state.thisImage.buttonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n<\/div><\/div>\n\n<\/div><\/div>\n\n<style>.kb-row-layout-wrap.wp-block-kadence-rowlayout.kb-row-layout-id1754_51def0-80{margin-top:var(--global-kb-spacing-md, 2rem);}.kb-row-layout-id1754_51def0-80 > .kt-row-column-wrap{align-content:start;}:where(.kb-row-layout-id1754_51def0-80 > .kt-row-column-wrap) > .wp-block-kadence-column{justify-content:start;}.kb-row-layout-id1754_51def0-80 > .kt-row-column-wrap{column-gap:var(--global-kb-gap-md, 2rem);row-gap:var(--global-kb-gap-none, 0rem );max-width:900px;margin-left:auto;margin-right:auto;padding-top:var(--global-kb-spacing-sm, 1.5rem);padding-bottom:var(--global-kb-spacing-sm, 1.5rem);grid-template-columns:minmax(0, 1fr);}.kb-row-layout-id1754_51def0-80{border-top-right-radius:50px;border-bottom-left-radius:0px;overflow:clip;isolation:isolate;}.kb-row-layout-id1754_51def0-80 > .kt-row-layout-overlay{border-top-right-radius:50px;border-bottom-left-radius:0px;}.kb-row-layout-id1754_51def0-80 > .kt-row-layout-overlay{opacity:0.30;}.kb-row-layout-id1754_51def0-80 ,.kb-row-layout-id1754_51def0-80 h1,.kb-row-layout-id1754_51def0-80 h2,.kb-row-layout-id1754_51def0-80 h3,.kb-row-layout-id1754_51def0-80 h4,.kb-row-layout-id1754_51def0-80 h5,.kb-row-layout-id1754_51def0-80 h6{color:#ffffff;}.kb-row-layout-id1754_51def0-80 .kt-row-layout-bottom-sep{height:100px;}.kb-row-layout-id1754_51def0-80 .kt-row-layout-bottom-sep svg{width:100%;}.kb-row-layout-id1754_51def0-80 .kt-row-layout-bottom-sep svg{fill:#ffffff!important;}@media all and (max-width: 1024px){.kb-row-layout-id1754_51def0-80 > .kt-row-column-wrap{grid-template-columns:minmax(0, 1fr);}}@media all and (max-width: 1024px){.kb-row-layout-id1754_51def0-80 .kt-row-layout-bottom-sep{height:px;}}@media all and (max-width: 1024px){.kb-row-layout-id1754_51def0-80 .kt-row-layout-bottom-sep svg{width:%;}}@media all and (max-width: 767px){.kb-row-layout-id1754_51def0-80 > .kt-row-column-wrap{grid-template-columns:minmax(0, 1fr);}.kb-row-layout-id1754_51def0-80 .kt-row-layout-bottom-sep{height:px;}.kb-row-layout-id1754_51def0-80 .kt-row-layout-bottom-sep svg{width:%;}}<\/style><div class=\"kb-row-layout-wrap kb-row-layout-id1754_51def0-80 alignnone has-eighty-black-background-color kt-row-has-bg wp-block-kadence-rowlayout\"><div class=\"kt-row-column-wrap kt-has-1-columns kt-row-layout-equal kt-tab-layout-inherit kt-mobile-layout-row kt-row-valign-top\">\n<style>.kadence-column1754_647a38-b2 > .kt-inside-inner-col,.kadence-column1754_647a38-b2 > .kt-inside-inner-col:before{border-top-left-radius:0px;border-top-right-radius:0px;border-bottom-right-radius:0px;border-bottom-left-radius:0px;}.kadence-column1754_647a38-b2 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column1754_647a38-b2 > .kt-inside-inner-col{flex-direction:column;}.kadence-column1754_647a38-b2 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column1754_647a38-b2 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column1754_647a38-b2{position:relative;}@media all and (max-width: 1024px){.kadence-column1754_647a38-b2 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column1754_647a38-b2 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column1754_647a38-b2\"><div class=\"kt-inside-inner-col\"><style>.wp-block-kadence-advancedheading.kt-adv-heading1754_468153-61, .wp-block-kadence-advancedheading.kt-adv-heading1754_468153-61[data-kb-block=\"kb-adv-heading1754_468153-61\"]{font-style:normal;}.wp-block-kadence-advancedheading.kt-adv-heading1754_468153-61 mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading1754_468153-61[data-kb-block=\"kb-adv-heading1754_468153-61\"] mark.kt-highlight{font-style:normal;color:#f76a0c;-webkit-box-decoration-break:clone;box-decoration-break:clone;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;}.wp-block-kadence-advancedheading.kt-adv-heading1754_468153-61 img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading1754_468153-61[data-kb-block=\"kb-adv-heading1754_468153-61\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<h3 id=\"specs\" class=\"kt-adv-heading1754_468153-61 wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading1754_468153-61\">Specs<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">As its name suggests, the William Optics 50mm Guidescope with 1.25&#8243; ROTO Lock has an aperture of 50mm, which in conjunction with its focal ratio of f\/4, affords it a good amount of light-gathering ability. This allows it to resolve dim stars, which is useful for modern multi-star guiding algorithms such as those used in PHD2 and the <a href=\"https:\/\/urbanastrophotography.com\/staging\/7355\/review-asiair-plus\/\" target=\"_blank\" rel=\"noreferrer noopener\">ZWO ASIAIR<\/a> range series of controllers.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;6aafc6bbea6b3&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"6aafc6bbea6b3\" class=\"wp-block-image size-full wp-lightbox-container\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"880\" height=\"586\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on--pointerdown=\"actions.preloadImage\" data-wp-on--pointerenter=\"actions.preloadImageWithDelay\" data-wp-on--pointerleave=\"actions.cancelPreload\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" src=\"https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/011-October-06-2022-Reviews-web-res-watermarked-DSC_6600-PULLEN.jpg?resize=880%2C586&#038;ssl=1\" alt=\"William Optics 50mm Guidescope with 1.25&quot; ROTO Lock, side view\" class=\"wp-image-1855\" srcset=\"https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/011-October-06-2022-Reviews-web-res-watermarked-DSC_6600-PULLEN.jpg?w=2048&amp;ssl=1 2048w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/011-October-06-2022-Reviews-web-res-watermarked-DSC_6600-PULLEN.jpg?resize=300%2C200&amp;ssl=1 300w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/011-October-06-2022-Reviews-web-res-watermarked-DSC_6600-PULLEN.jpg?resize=1024%2C682&amp;ssl=1 1024w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/011-October-06-2022-Reviews-web-res-watermarked-DSC_6600-PULLEN.jpg?resize=768%2C511&amp;ssl=1 768w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/011-October-06-2022-Reviews-web-res-watermarked-DSC_6600-PULLEN.jpg?resize=1536%2C1022&amp;ssl=1 1536w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/011-October-06-2022-Reviews-web-res-watermarked-DSC_6600-PULLEN.jpg?resize=500%2C333&amp;ssl=1 500w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/011-October-06-2022-Reviews-web-res-watermarked-DSC_6600-PULLEN.jpg?resize=800%2C532&amp;ssl=1 800w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/011-October-06-2022-Reviews-web-res-watermarked-DSC_6600-PULLEN.jpg?resize=1280%2C852&amp;ssl=1 1280w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/011-October-06-2022-Reviews-web-res-watermarked-DSC_6600-PULLEN.jpg?resize=1920%2C1278&amp;ssl=1 1920w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/011-October-06-2022-Reviews-web-res-watermarked-DSC_6600-PULLEN.jpg?resize=507%2C338&amp;ssl=1 507w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/011-October-06-2022-Reviews-web-res-watermarked-DSC_6600-PULLEN.jpg?w=1760&amp;ssl=1 1760w\" sizes=\"auto, (max-width: 880px) 100vw, 880px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\tdata-wp-bind--aria-label=\"state.thisImage.triggerButtonAriaLabel\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.thisImage.buttonRight\"\n\t\t\tdata-wp-style--top=\"state.thisImage.buttonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">The focal length is 200mm, making it a good choice for main telescopes with mid-range focal lengths. I&#8217;ve been using it with my <a href=\"https:\/\/urbanastrophotography.com\/staging\/7355\/review-askar-130phq-flatfield-astrograph\/\" target=\"_blank\" rel=\"noreferrer noopener\">Askar 130PHQ Flatfield Astrograph<\/a>, which has a focal length of 1000mm. If your imaging telescope is a wide-field rig, say up to 600mm or so, then the William Optics 50mm Guidescope with 1.25&#8243; ROTO Lock may be overkill. You might be better off considering something like the <a href=\"https:\/\/urbanastrophotography.com\/staging\/7355\/review-william-optics-32mm-slide-base-uniguide-scope\/\" target=\"_blank\" rel=\"noreferrer noopener\">William Optics 32mm Slide-base Uniguide Scope<\/a>. If your telescope is at the other end of the spectrum and has a very long focal length, then an Off-Axis Guider may give you better results.<br><br>Build quality is good, as you&#8217;d expect with a William Optics product. It weighs 0.52kg, which gives it some heft but isn&#8217;t overly-heavy. Front to back measures 26.5cm. Its white powder-paint finish looks classy, although I noticed a few black patches around the end of the dew shield where the paint hadn&#8217;t reached.<\/p>\n\n\n\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;6aafc6bbeac8a&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"6aafc6bbeac8a\" class=\"wp-block-image size-full wp-lightbox-container\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"880\" height=\"586\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on--pointerdown=\"actions.preloadImage\" data-wp-on--pointerenter=\"actions.preloadImageWithDelay\" data-wp-on--pointerleave=\"actions.cancelPreload\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" 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https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/004-October-06-2022-Reviews-web-res-watermarked-DSC_6589-PULLEN.jpg?resize=768%2C511&amp;ssl=1 768w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/004-October-06-2022-Reviews-web-res-watermarked-DSC_6589-PULLEN.jpg?resize=1536%2C1022&amp;ssl=1 1536w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/004-October-06-2022-Reviews-web-res-watermarked-DSC_6589-PULLEN.jpg?resize=500%2C333&amp;ssl=1 500w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/004-October-06-2022-Reviews-web-res-watermarked-DSC_6589-PULLEN.jpg?resize=800%2C532&amp;ssl=1 800w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/004-October-06-2022-Reviews-web-res-watermarked-DSC_6589-PULLEN.jpg?resize=1280%2C852&amp;ssl=1 1280w, 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\/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\tdata-wp-bind--aria-label=\"state.thisImage.triggerButtonAriaLabel\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.thisImage.buttonRight\"\n\t\t\tdata-wp-style--top=\"state.thisImage.buttonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n<\/div><\/div>\n\n<\/div><\/div>\n\n<style>.kb-row-layout-wrap.wp-block-kadence-rowlayout.kb-row-layout-id1754_4a3690-74{margin-top:var(--global-kb-spacing-md, 2rem);}.kb-row-layout-id1754_4a3690-74 > .kt-row-column-wrap{align-content:start;}:where(.kb-row-layout-id1754_4a3690-74 > .kt-row-column-wrap) > .wp-block-kadence-column{justify-content:start;}.kb-row-layout-id1754_4a3690-74 > .kt-row-column-wrap{column-gap:var(--global-kb-gap-md, 2rem);row-gap:var(--global-kb-gap-none, 0rem );max-width:900px;margin-left:auto;margin-right:auto;padding-top:var(--global-kb-spacing-sm, 1.5rem);padding-bottom:var(--global-kb-spacing-sm, 1.5rem);grid-template-columns:minmax(0, 1fr);}.kb-row-layout-id1754_4a3690-74{border-top-right-radius:50px;border-bottom-left-radius:0px;overflow:clip;isolation:isolate;}.kb-row-layout-id1754_4a3690-74 > .kt-row-layout-overlay{border-top-right-radius:50px;border-bottom-left-radius:0px;}.kb-row-layout-id1754_4a3690-74 > .kt-row-layout-overlay{opacity:0.30;}.kb-row-layout-id1754_4a3690-74 ,.kb-row-layout-id1754_4a3690-74 h1,.kb-row-layout-id1754_4a3690-74 h2,.kb-row-layout-id1754_4a3690-74 h3,.kb-row-layout-id1754_4a3690-74 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alignnone has-eighty-black-background-color kt-row-has-bg wp-block-kadence-rowlayout\"><div class=\"kt-row-column-wrap kt-has-1-columns kt-row-layout-equal kt-tab-layout-inherit kt-mobile-layout-row kt-row-valign-top\">\n<style>.kadence-column1754_aae036-48 > .kt-inside-inner-col,.kadence-column1754_aae036-48 > .kt-inside-inner-col:before{border-top-left-radius:0px;border-top-right-radius:0px;border-bottom-right-radius:0px;border-bottom-left-radius:0px;}.kadence-column1754_aae036-48 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column1754_aae036-48 > .kt-inside-inner-col{flex-direction:column;}.kadence-column1754_aae036-48 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column1754_aae036-48 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column1754_aae036-48{position:relative;}@media all and (max-width: 1024px){.kadence-column1754_aae036-48 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column1754_aae036-48 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column1754_aae036-48\"><div class=\"kt-inside-inner-col\"><style>.wp-block-kadence-advancedheading.kt-adv-heading1754_5837f4-3c, .wp-block-kadence-advancedheading.kt-adv-heading1754_5837f4-3c[data-kb-block=\"kb-adv-heading1754_5837f4-3c\"]{font-style:normal;}.wp-block-kadence-advancedheading.kt-adv-heading1754_5837f4-3c mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading1754_5837f4-3c[data-kb-block=\"kb-adv-heading1754_5837f4-3c\"] mark.kt-highlight{font-style:normal;color:#f76a0c;-webkit-box-decoration-break:clone;box-decoration-break:clone;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;}.wp-block-kadence-advancedheading.kt-adv-heading1754_5837f4-3c img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading1754_5837f4-3c[data-kb-block=\"kb-adv-heading1754_5837f4-3c\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<h3 id=\"ROTO-lock\" class=\"kt-adv-heading1754_5837f4-3c wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading1754_5837f4-3c\">ROTO Lock<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">So far it&#8217;s a fairly standard 50mm guidescope then, but what sets the William Optics 50mm Guidescope with 1.25&#8243; ROTO Lock apart is that end part of the name: the 1.25&#8243; ROTO Lock. It&#8217;s simple to use: twist anti-clockwise to loosen it, then insert your guidecam, and twist clockwise to tighten. It&#8217;s like a Baader Clicklock, if you&#8217;ve ever come across those. The system does rely on your guidecam having a 1.25&#8243; fit, but this is very common.<\/p>\n\n\n\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;6aafc6bbeb770&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"6aafc6bbeb770\" class=\"wp-block-image size-full wp-lightbox-container\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"880\" height=\"586\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on--pointerdown=\"actions.preloadImage\" data-wp-on--pointerenter=\"actions.preloadImageWithDelay\" data-wp-on--pointerleave=\"actions.cancelPreload\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" src=\"https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/005-October-06-2022-Reviews-web-res-watermarked-DSC_6590-PULLEN.jpg?resize=880%2C586&#038;ssl=1\" alt=\"William Optics 50mm Guidescope with focus on the 1.25&quot; ROTO Lock\" class=\"wp-image-1857\" srcset=\"https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/005-October-06-2022-Reviews-web-res-watermarked-DSC_6590-PULLEN.jpg?w=2048&amp;ssl=1 2048w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/005-October-06-2022-Reviews-web-res-watermarked-DSC_6590-PULLEN.jpg?resize=300%2C200&amp;ssl=1 300w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/005-October-06-2022-Reviews-web-res-watermarked-DSC_6590-PULLEN.jpg?resize=1024%2C682&amp;ssl=1 1024w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/005-October-06-2022-Reviews-web-res-watermarked-DSC_6590-PULLEN.jpg?resize=768%2C511&amp;ssl=1 768w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/005-October-06-2022-Reviews-web-res-watermarked-DSC_6590-PULLEN.jpg?resize=1536%2C1022&amp;ssl=1 1536w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/005-October-06-2022-Reviews-web-res-watermarked-DSC_6590-PULLEN.jpg?resize=500%2C333&amp;ssl=1 500w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/005-October-06-2022-Reviews-web-res-watermarked-DSC_6590-PULLEN.jpg?resize=800%2C532&amp;ssl=1 800w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/005-October-06-2022-Reviews-web-res-watermarked-DSC_6590-PULLEN.jpg?resize=1280%2C852&amp;ssl=1 1280w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/005-October-06-2022-Reviews-web-res-watermarked-DSC_6590-PULLEN.jpg?resize=1920%2C1278&amp;ssl=1 1920w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/005-October-06-2022-Reviews-web-res-watermarked-DSC_6590-PULLEN.jpg?resize=507%2C338&amp;ssl=1 507w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/005-October-06-2022-Reviews-web-res-watermarked-DSC_6590-PULLEN.jpg?w=1760&amp;ssl=1 1760w\" sizes=\"auto, (max-width: 880px) 100vw, 880px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\tdata-wp-bind--aria-label=\"state.thisImage.triggerButtonAriaLabel\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.thisImage.buttonRight\"\n\t\t\tdata-wp-style--top=\"state.thisImage.buttonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">The ROTO Lock system fit my <a href=\"https:\/\/urbanastrophotography.com\/staging\/7355\/review-zwo-asi120mm-mini\/\" target=\"_blank\" rel=\"noreferrer noopener\">ZWO ASI 120MM Mini<\/a> perfectly. The guidescope comes with an optional extension tube that screws into the back that&#8217;s needed for some cameras to achieve focus. I found that using this allowed me to get a more secure fit.<br><br>There are two steps to focussing a guidecam. First, the red collar just behind the dewshield unscrews, allowing the dewshield to be extended; the collar is then tightened to secure it in place. Then the guidecam&#8217;s position in the ROTO Lock is adjusted until the view is pin-prick sharp. When focussing my ZWO ASI 120MM Mini I found that I was actually able to skip the first step entirely, leaving the dewshield in its original position.<\/p>\n\n\n\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;6aafc6bbebdd8&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"6aafc6bbebdd8\" class=\"wp-block-image size-full wp-lightbox-container\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"880\" height=\"586\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on--pointerdown=\"actions.preloadImage\" data-wp-on--pointerenter=\"actions.preloadImageWithDelay\" data-wp-on--pointerleave=\"actions.cancelPreload\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" src=\"https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/036-October-07-2022-Reviews-web-res-watermarked-DSC_6645-PULLEN.jpg?resize=880%2C586&#038;ssl=1\" alt=\"William Optics 50mm Guidescope with 1.25&quot; ROTO Lock attached to an Askar 130PHQ telescope\" class=\"wp-image-1858\" srcset=\"https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/036-October-07-2022-Reviews-web-res-watermarked-DSC_6645-PULLEN.jpg?w=2048&amp;ssl=1 2048w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/036-October-07-2022-Reviews-web-res-watermarked-DSC_6645-PULLEN.jpg?resize=300%2C200&amp;ssl=1 300w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/036-October-07-2022-Reviews-web-res-watermarked-DSC_6645-PULLEN.jpg?resize=1024%2C682&amp;ssl=1 1024w, 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https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/036-October-07-2022-Reviews-web-res-watermarked-DSC_6645-PULLEN.jpg?resize=1920%2C1278&amp;ssl=1 1920w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/036-October-07-2022-Reviews-web-res-watermarked-DSC_6645-PULLEN.jpg?resize=507%2C338&amp;ssl=1 507w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/036-October-07-2022-Reviews-web-res-watermarked-DSC_6645-PULLEN.jpg?w=1760&amp;ssl=1 1760w\" sizes=\"auto, (max-width: 880px) 100vw, 880px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\tdata-wp-bind--aria-label=\"state.thisImage.triggerButtonAriaLabel\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.thisImage.buttonRight\"\n\t\t\tdata-wp-style--top=\"state.thisImage.buttonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n<\/div><\/div>\n\n<\/div><\/div>\n\n<style>.kb-row-layout-wrap.wp-block-kadence-rowlayout.kb-row-layout-id1754_b2e45b-ba{margin-top:var(--global-kb-spacing-md, 2rem);}.kb-row-layout-id1754_b2e45b-ba > .kt-row-column-wrap{align-content:start;}:where(.kb-row-layout-id1754_b2e45b-ba > .kt-row-column-wrap) > .wp-block-kadence-column{justify-content:start;}.kb-row-layout-id1754_b2e45b-ba > .kt-row-column-wrap{column-gap:var(--global-kb-gap-md, 2rem);row-gap:var(--global-kb-gap-none, 0rem );max-width:900px;margin-left:auto;margin-right:auto;padding-top:var(--global-kb-spacing-sm, 1.5rem);padding-bottom:var(--global-kb-spacing-sm, 1.5rem);grid-template-columns:minmax(0, 1fr);}.kb-row-layout-id1754_b2e45b-ba{border-top-right-radius:50px;border-bottom-left-radius:0px;overflow:clip;isolation:isolate;}.kb-row-layout-id1754_b2e45b-ba > .kt-row-layout-overlay{border-top-right-radius:50px;border-bottom-left-radius:0px;}.kb-row-layout-id1754_b2e45b-ba > .kt-row-layout-overlay{opacity:0.30;}.kb-row-layout-id1754_b2e45b-ba ,.kb-row-layout-id1754_b2e45b-ba h1,.kb-row-layout-id1754_b2e45b-ba h2,.kb-row-layout-id1754_b2e45b-ba h3,.kb-row-layout-id1754_b2e45b-ba h4,.kb-row-layout-id1754_b2e45b-ba h5,.kb-row-layout-id1754_b2e45b-ba h6{color:#ffffff;}.kb-row-layout-id1754_b2e45b-ba .kt-row-layout-bottom-sep{height:100px;}.kb-row-layout-id1754_b2e45b-ba .kt-row-layout-bottom-sep svg{width:100%;}.kb-row-layout-id1754_b2e45b-ba .kt-row-layout-bottom-sep svg{fill:#ffffff!important;}@media all and (max-width: 1024px){.kb-row-layout-id1754_b2e45b-ba > .kt-row-column-wrap{grid-template-columns:minmax(0, 1fr);}}@media all and (max-width: 1024px){.kb-row-layout-id1754_b2e45b-ba .kt-row-layout-bottom-sep{height:px;}}@media all and (max-width: 1024px){.kb-row-layout-id1754_b2e45b-ba .kt-row-layout-bottom-sep svg{width:%;}}@media all and (max-width: 767px){.kb-row-layout-id1754_b2e45b-ba > .kt-row-column-wrap{grid-template-columns:minmax(0, 1fr);}.kb-row-layout-id1754_b2e45b-ba .kt-row-layout-bottom-sep{height:px;}.kb-row-layout-id1754_b2e45b-ba .kt-row-layout-bottom-sep svg{width:%;}}<\/style><div class=\"kb-row-layout-wrap kb-row-layout-id1754_b2e45b-ba alignnone has-eighty-black-background-color kt-row-has-bg wp-block-kadence-rowlayout\"><div class=\"kt-row-column-wrap kt-has-1-columns kt-row-layout-equal kt-tab-layout-inherit kt-mobile-layout-row kt-row-valign-top\">\n<style>.kadence-column1754_0f329b-c0 > .kt-inside-inner-col,.kadence-column1754_0f329b-c0 > .kt-inside-inner-col:before{border-top-left-radius:0px;border-top-right-radius:0px;border-bottom-right-radius:0px;border-bottom-left-radius:0px;}.kadence-column1754_0f329b-c0 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column1754_0f329b-c0 > .kt-inside-inner-col{flex-direction:column;}.kadence-column1754_0f329b-c0 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column1754_0f329b-c0 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column1754_0f329b-c0{position:relative;}@media all and (max-width: 1024px){.kadence-column1754_0f329b-c0 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column1754_0f329b-c0 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column1754_0f329b-c0\"><div class=\"kt-inside-inner-col\"><style>.wp-block-kadence-advancedheading.kt-adv-heading1754_d04a05-40, .wp-block-kadence-advancedheading.kt-adv-heading1754_d04a05-40[data-kb-block=\"kb-adv-heading1754_d04a05-40\"]{font-style:normal;}.wp-block-kadence-advancedheading.kt-adv-heading1754_d04a05-40 mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading1754_d04a05-40[data-kb-block=\"kb-adv-heading1754_d04a05-40\"] mark.kt-highlight{font-style:normal;color:#f76a0c;-webkit-box-decoration-break:clone;box-decoration-break:clone;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;}.wp-block-kadence-advancedheading.kt-adv-heading1754_d04a05-40 img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading1754_d04a05-40[data-kb-block=\"kb-adv-heading1754_d04a05-40\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<h3 id=\"bracket-attachment\" class=\"kt-adv-heading1754_d04a05-40 wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading1754_d04a05-40\">Bracket attachment<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The guidescope itself is just one part of the system; you also need a way to attach it to your telescope. I used a William Optics Finder Bracket. It&#8217;s as well made as the guidescope. Six thumbscrews allow you to align the guidescope to your main telescope, and they have plastic tips to avoid scratching paintwork. A finder bracket is included too.<br><br>A version of the William Optics 50mm Guidescope with 1.25&#8243; ROTO Lock is available that has an <a href=\"https:\/\/www.firstlightoptics.com\/william-optics\/william-optics-50mm-slide-base-uniguide-scope-with-125-rotolock.html\" target=\"_blank\" rel=\"noreferrer noopener\">integrated uniguide slidebase<\/a>. This is good if your guidescope can fit flush against your main telescope tube, but you lose the fine adjustments afforded by the thumbscrews.<\/p>\n\n\n\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;6aafc6bbec9e2&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"6aafc6bbec9e2\" class=\"wp-block-image size-full wp-lightbox-container\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"880\" height=\"586\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on--pointerdown=\"actions.preloadImage\" data-wp-on--pointerenter=\"actions.preloadImageWithDelay\" data-wp-on--pointerleave=\"actions.cancelPreload\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" src=\"https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/006-October-06-2022-Reviews-web-res-watermarked-DSC_6592-PULLEN.jpg?resize=880%2C586&#038;ssl=1\" alt=\"Finderscope bracket\" class=\"wp-image-1859\" srcset=\"https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/006-October-06-2022-Reviews-web-res-watermarked-DSC_6592-PULLEN.jpg?w=2048&amp;ssl=1 2048w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/006-October-06-2022-Reviews-web-res-watermarked-DSC_6592-PULLEN.jpg?resize=300%2C200&amp;ssl=1 300w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/006-October-06-2022-Reviews-web-res-watermarked-DSC_6592-PULLEN.jpg?resize=1024%2C682&amp;ssl=1 1024w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/006-October-06-2022-Reviews-web-res-watermarked-DSC_6592-PULLEN.jpg?resize=768%2C511&amp;ssl=1 768w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/006-October-06-2022-Reviews-web-res-watermarked-DSC_6592-PULLEN.jpg?resize=1536%2C1022&amp;ssl=1 1536w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/006-October-06-2022-Reviews-web-res-watermarked-DSC_6592-PULLEN.jpg?resize=500%2C333&amp;ssl=1 500w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/006-October-06-2022-Reviews-web-res-watermarked-DSC_6592-PULLEN.jpg?resize=800%2C532&amp;ssl=1 800w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/006-October-06-2022-Reviews-web-res-watermarked-DSC_6592-PULLEN.jpg?resize=1280%2C852&amp;ssl=1 1280w, 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\/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\tdata-wp-bind--aria-label=\"state.thisImage.triggerButtonAriaLabel\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.thisImage.buttonRight\"\n\t\t\tdata-wp-style--top=\"state.thisImage.buttonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n\n\n\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;6aafc6bbecf56&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"6aafc6bbecf56\" class=\"wp-block-image size-full 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2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n<\/div><\/div>\n\n<\/div><\/div>\n\n<style>.kb-row-layout-wrap.wp-block-kadence-rowlayout.kb-row-layout-id1754_2516ec-80{margin-top:var(--global-kb-spacing-md, 2rem);}.kb-row-layout-id1754_2516ec-80 > .kt-row-column-wrap{align-content:start;}:where(.kb-row-layout-id1754_2516ec-80 > .kt-row-column-wrap) > .wp-block-kadence-column{justify-content:start;}.kb-row-layout-id1754_2516ec-80 > .kt-row-column-wrap{column-gap:var(--global-kb-gap-md, 2rem);row-gap:var(--global-kb-gap-none, 0rem );max-width:900px;margin-left:auto;margin-right:auto;padding-top:var(--global-kb-spacing-sm, 1.5rem);padding-bottom:var(--global-kb-spacing-sm, 1.5rem);grid-template-columns:minmax(0, 1fr);}.kb-row-layout-id1754_2516ec-80{border-top-right-radius:50px;border-bottom-left-radius:0px;overflow:clip;isolation:isolate;}.kb-row-layout-id1754_2516ec-80 > .kt-row-layout-overlay{border-top-right-radius:50px;border-bottom-left-radius:0px;}.kb-row-layout-id1754_2516ec-80 > .kt-row-layout-overlay{opacity:0.30;}.kb-row-layout-id1754_2516ec-80 ,.kb-row-layout-id1754_2516ec-80 h1,.kb-row-layout-id1754_2516ec-80 h2,.kb-row-layout-id1754_2516ec-80 h3,.kb-row-layout-id1754_2516ec-80 h4,.kb-row-layout-id1754_2516ec-80 h5,.kb-row-layout-id1754_2516ec-80 h6{color:#ffffff;}.kb-row-layout-id1754_2516ec-80 .kt-row-layout-bottom-sep{height:100px;}.kb-row-layout-id1754_2516ec-80 .kt-row-layout-bottom-sep svg{width:100%;}.kb-row-layout-id1754_2516ec-80 .kt-row-layout-bottom-sep svg{fill:#ffffff!important;}@media all and (max-width: 1024px){.kb-row-layout-id1754_2516ec-80 > .kt-row-column-wrap{grid-template-columns:minmax(0, 1fr);}}@media all and (max-width: 1024px){.kb-row-layout-id1754_2516ec-80 .kt-row-layout-bottom-sep{height:px;}}@media all and (max-width: 1024px){.kb-row-layout-id1754_2516ec-80 .kt-row-layout-bottom-sep svg{width:%;}}@media all and (max-width: 767px){.kb-row-layout-id1754_2516ec-80 > .kt-row-column-wrap{grid-template-columns:minmax(0, 1fr);}.kb-row-layout-id1754_2516ec-80 .kt-row-layout-bottom-sep{height:px;}.kb-row-layout-id1754_2516ec-80 .kt-row-layout-bottom-sep svg{width:%;}}<\/style><div class=\"kb-row-layout-wrap kb-row-layout-id1754_2516ec-80 alignnone has-eighty-black-background-color kt-row-has-bg wp-block-kadence-rowlayout\"><div class=\"kt-row-column-wrap kt-has-1-columns kt-row-layout-equal kt-tab-layout-inherit kt-mobile-layout-row kt-row-valign-top\">\n<style>.kadence-column1754_e07b59-2d > .kt-inside-inner-col,.kadence-column1754_e07b59-2d > .kt-inside-inner-col:before{border-top-left-radius:0px;border-top-right-radius:0px;border-bottom-right-radius:0px;border-bottom-left-radius:0px;}.kadence-column1754_e07b59-2d > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column1754_e07b59-2d > .kt-inside-inner-col{flex-direction:column;}.kadence-column1754_e07b59-2d > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column1754_e07b59-2d > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column1754_e07b59-2d{position:relative;}@media all and (max-width: 1024px){.kadence-column1754_e07b59-2d > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column1754_e07b59-2d > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column1754_e07b59-2d\"><div class=\"kt-inside-inner-col\"><style>.wp-block-kadence-advancedheading.kt-adv-heading1754_6a9e49-6c, .wp-block-kadence-advancedheading.kt-adv-heading1754_6a9e49-6c[data-kb-block=\"kb-adv-heading1754_6a9e49-6c\"]{font-style:normal;}.wp-block-kadence-advancedheading.kt-adv-heading1754_6a9e49-6c mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading1754_6a9e49-6c[data-kb-block=\"kb-adv-heading1754_6a9e49-6c\"] mark.kt-highlight{font-style:normal;color:#f76a0c;-webkit-box-decoration-break:clone;box-decoration-break:clone;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;}.wp-block-kadence-advancedheading.kt-adv-heading1754_6a9e49-6c img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading1754_6a9e49-6c[data-kb-block=\"kb-adv-heading1754_6a9e49-6c\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<h3 id=\"effectiveness\" class=\"kt-adv-heading1754_6a9e49-6c wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading1754_6a9e49-6c\">Effectiveness<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">In use, I&#8217;ve found the William Optics 50mm Guidescope with 1.25&#8243; ROTO Lock to be very effective. In conjunction with my Sky-Watcher EQ6R-Pro, I routinely manage a guiding RMS in the 0.3&#8243; to 0.6&#8243; range, with my all-time best of 0.29&#8243; being achieved on the second night testing the guidescope. Of course, a guidescope is just one part of an effective guiding system, but the William Optics 50mm Guidescope with 1.25&#8243; RotoLock is a strong component.<\/p>\n\n\n\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;6aafc6bbee023&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"6aafc6bbee023\" class=\"wp-block-image size-full wp-lightbox-container\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"880\" height=\"406\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on--pointerdown=\"actions.preloadImage\" data-wp-on--pointerenter=\"actions.preloadImageWithDelay\" data-wp-on--pointerleave=\"actions.cancelPreload\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" src=\"https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/Guiding_RMS.jpg?resize=880%2C406&#038;ssl=1\" alt=\"ASIAIR guiding screenshot, with a total RMS of 0.29&quot;\" class=\"wp-image-1862\" srcset=\"https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/Guiding_RMS.jpg?w=2048&amp;ssl=1 2048w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/Guiding_RMS.jpg?resize=300%2C138&amp;ssl=1 300w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/Guiding_RMS.jpg?resize=1024%2C473&amp;ssl=1 1024w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/Guiding_RMS.jpg?resize=768%2C354&amp;ssl=1 768w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/Guiding_RMS.jpg?resize=1536%2C709&amp;ssl=1 1536w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/Guiding_RMS.jpg?resize=500%2C231&amp;ssl=1 500w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/Guiding_RMS.jpg?resize=800%2C369&amp;ssl=1 800w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/Guiding_RMS.jpg?resize=1280%2C591&amp;ssl=1 1280w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/Guiding_RMS.jpg?resize=1920%2C886&amp;ssl=1 1920w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/Guiding_RMS.jpg?w=1760&amp;ssl=1 1760w\" sizes=\"auto, (max-width: 880px) 100vw, 880px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\tdata-wp-bind--aria-label=\"state.thisImage.triggerButtonAriaLabel\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.thisImage.buttonRight\"\n\t\t\tdata-wp-style--top=\"state.thisImage.buttonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n<\/div><\/div>\n\n<\/div><\/div>\n\n<style>.kb-row-layout-wrap.wp-block-kadence-rowlayout.kb-row-layout-id1754_9b8189-df{margin-top:var(--global-kb-spacing-md, 2rem);}.kb-row-layout-id1754_9b8189-df > .kt-row-column-wrap{align-content:start;}:where(.kb-row-layout-id1754_9b8189-df > .kt-row-column-wrap) > .wp-block-kadence-column{justify-content:start;}.kb-row-layout-id1754_9b8189-df > .kt-row-column-wrap{column-gap:var(--global-kb-gap-md, 2rem);row-gap:var(--global-kb-gap-none, 0rem );max-width:900px;margin-left:auto;margin-right:auto;padding-top:var(--global-kb-spacing-sm, 1.5rem);padding-bottom:var(--global-kb-spacing-sm, 1.5rem);grid-template-columns:minmax(0, 1fr);}.kb-row-layout-id1754_9b8189-df{border-top-right-radius:50px;border-bottom-left-radius:0px;overflow:clip;isolation:isolate;}.kb-row-layout-id1754_9b8189-df > .kt-row-layout-overlay{border-top-right-radius:50px;border-bottom-left-radius:0px;}.kb-row-layout-id1754_9b8189-df > .kt-row-layout-overlay{opacity:0.30;}@media all and (max-width: 1024px){.kb-row-layout-id1754_9b8189-df > .kt-row-column-wrap{grid-template-columns:minmax(0, 1fr);}}@media all and (max-width: 767px){.kb-row-layout-id1754_9b8189-df > .kt-row-column-wrap{grid-template-columns:minmax(0, 1fr);}}<\/style><div class=\"kb-row-layout-wrap kb-row-layout-id1754_9b8189-df alignnone has-eighty-black-background-color kt-row-has-bg wp-block-kadence-rowlayout\"><div class=\"kt-row-column-wrap kt-has-1-columns kt-row-layout-equal kt-tab-layout-inherit kt-mobile-layout-row kt-row-valign-top\">\n<style>.kadence-column1754_c2b30e-ab > .kt-inside-inner-col,.kadence-column1754_c2b30e-ab > .kt-inside-inner-col:before{border-top-left-radius:0px;border-top-right-radius:0px;border-bottom-right-radius:0px;border-bottom-left-radius:0px;}.kadence-column1754_c2b30e-ab > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column1754_c2b30e-ab > .kt-inside-inner-col{flex-direction:column;}.kadence-column1754_c2b30e-ab > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column1754_c2b30e-ab > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column1754_c2b30e-ab{position:relative;}@media all and (max-width: 1024px){.kadence-column1754_c2b30e-ab > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column1754_c2b30e-ab > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column1754_c2b30e-ab\"><div class=\"kt-inside-inner-col\">\n<h3 class=\"wp-block-heading\" id=\"where-to-buy\">Where to buy<\/h3>\n\n\n\n<p class=\"has-small-font-size wp-block-paragraph\"><span style=\"color: #fffffe;\" class=\"stk-highlight\"><em>Affiliate links help support the site at no extra cost to you.<\/em><\/span><\/p>\n\n\n<style>.kb-row-layout-id1754_6a309d-0e > .kt-row-column-wrap{align-content:start;}:where(.kb-row-layout-id1754_6a309d-0e > .kt-row-column-wrap) > .wp-block-kadence-column{justify-content:start;}.kb-row-layout-id1754_6a309d-0e > .kt-row-column-wrap{column-gap:var(--global-kb-gap-sm, 1rem);row-gap:var(--global-kb-gap-md, 2rem);padding-top:var(--global-kb-spacing-sm, 1.5rem);padding-bottom:var(--global-kb-spacing-sm, 1.5rem);grid-template-columns:minmax(0, calc(35% - ((var(--global-kb-gap-sm, 1rem) * 1 )\/2)))minmax(0, calc(65% - ((var(--global-kb-gap-sm, 1rem) * 1 )\/2)));}.kb-row-layout-id1754_6a309d-0e > .kt-row-layout-overlay{opacity:0.30;}@media all and (max-width: 1024px){.kb-row-layout-id1754_6a309d-0e > .kt-row-column-wrap{grid-template-columns:minmax(0, 1fr) minmax(0, 2fr);}}@media all and (max-width: 767px){.kb-row-layout-id1754_6a309d-0e > .kt-row-column-wrap{grid-template-columns:minmax(0, 1fr);}}<\/style><div class=\"kb-row-layout-wrap kb-row-layout-id1754_6a309d-0e alignnone wp-block-kadence-rowlayout\"><div class=\"kt-row-column-wrap kt-has-2-columns kt-row-layout-right-golden kt-tab-layout-inherit kt-mobile-layout-row kt-row-valign-top\">\n<style>.kadence-column1754_6d10dc-87 > .kt-inside-inner-col,.kadence-column1754_6d10dc-87 > .kt-inside-inner-col:before{border-top-left-radius:0px;border-top-right-radius:0px;border-bottom-right-radius:0px;border-bottom-left-radius:0px;}.kadence-column1754_6d10dc-87 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column1754_6d10dc-87 > .kt-inside-inner-col{flex-direction:column;}.kadence-column1754_6d10dc-87 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column1754_6d10dc-87 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column1754_6d10dc-87{position:relative;}@media all and (max-width: 1024px){.kadence-column1754_6d10dc-87 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column1754_6d10dc-87 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column1754_6d10dc-87\"><div class=\"kt-inside-inner-col\">\n<figure class=\"wp-block-image size-large\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"880\" height=\"586\" src=\"https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/013-October-06-2022-Reviews-web-res-watermarked-DSC_6603-PULLEN.jpg?resize=880%2C586&#038;ssl=1\" alt=\"William Optics 50mm with ROTO Lock\n\" class=\"wp-image-1854\" srcset=\"https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/013-October-06-2022-Reviews-web-res-watermarked-DSC_6603-PULLEN.jpg?resize=1024%2C682&amp;ssl=1 1024w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/013-October-06-2022-Reviews-web-res-watermarked-DSC_6603-PULLEN.jpg?resize=300%2C200&amp;ssl=1 300w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/013-October-06-2022-Reviews-web-res-watermarked-DSC_6603-PULLEN.jpg?resize=768%2C511&amp;ssl=1 768w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/013-October-06-2022-Reviews-web-res-watermarked-DSC_6603-PULLEN.jpg?resize=1536%2C1022&amp;ssl=1 1536w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/013-October-06-2022-Reviews-web-res-watermarked-DSC_6603-PULLEN.jpg?resize=500%2C333&amp;ssl=1 500w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/013-October-06-2022-Reviews-web-res-watermarked-DSC_6603-PULLEN.jpg?resize=800%2C532&amp;ssl=1 800w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/013-October-06-2022-Reviews-web-res-watermarked-DSC_6603-PULLEN.jpg?resize=1280%2C852&amp;ssl=1 1280w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/013-October-06-2022-Reviews-web-res-watermarked-DSC_6603-PULLEN.jpg?resize=1920%2C1278&amp;ssl=1 1920w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/013-October-06-2022-Reviews-web-res-watermarked-DSC_6603-PULLEN.jpg?resize=507%2C338&amp;ssl=1 507w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/013-October-06-2022-Reviews-web-res-watermarked-DSC_6603-PULLEN.jpg?w=2048&amp;ssl=1 2048w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/10\/013-October-06-2022-Reviews-web-res-watermarked-DSC_6603-PULLEN.jpg?w=1760&amp;ssl=1 1760w\" sizes=\"auto, (max-width: 880px) 100vw, 880px\" \/><\/figure>\n<\/div><\/div>\n\n\n<style>.kadence-column1754_4e87b9-c1 > .kt-inside-inner-col,.kadence-column1754_4e87b9-c1 > .kt-inside-inner-col:before{border-top-left-radius:0px;border-top-right-radius:0px;border-bottom-right-radius:0px;border-bottom-left-radius:0px;}.kadence-column1754_4e87b9-c1 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column1754_4e87b9-c1 > .kt-inside-inner-col{flex-direction:column;}.kadence-column1754_4e87b9-c1 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column1754_4e87b9-c1 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column1754_4e87b9-c1{position:relative;}@media all and (max-width: 1024px){.kadence-column1754_4e87b9-c1 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column1754_4e87b9-c1 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column1754_4e87b9-c1\"><div class=\"kt-inside-inner-col\">\n<p class=\"wp-block-paragraph\"><span style=\"color: #fffffe;\" class=\"stk-highlight\"><strong><span style=\"color: #fffffe;\" class=\"stk-highlight\"><strong>William Optics 50mm<\/strong><\/span><\/strong><\/span> <span style=\"color: #ffffff;\" class=\"stk-highlight\"><strong>with ROTO Lock<\/strong><\/span><br><span style=\"color: #fffffe;\" class=\"stk-highlight\"><a href=\"https:\/\/www.astroshop.eu\/guidescopes\/william-optics-guidescope-uniguide-50mm-red\/p,62858?affiliate_id=UrbanAstrophotography\" target=\"_blank\" rel=\"noreferrer noopener sponsored nofollow\">Buy from Astroshop.eu<\/a><\/span><\/p>\n<\/div><\/div>\n\n\n<style>.kadence-column1754_a780bb-2e > .kt-inside-inner-col,.kadence-column1754_a780bb-2e > .kt-inside-inner-col:before{border-top-left-radius:0px;border-top-right-radius:0px;border-bottom-right-radius:0px;border-bottom-left-radius:0px;}.kadence-column1754_a780bb-2e > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column1754_a780bb-2e > .kt-inside-inner-col{flex-direction:column;}.kadence-column1754_a780bb-2e > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column1754_a780bb-2e > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column1754_a780bb-2e{position:relative;}@media all and (max-width: 1024px){.kadence-column1754_a780bb-2e > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column1754_a780bb-2e > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column1754_a780bb-2e\"><div class=\"kt-inside-inner-col\">\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"619\" height=\"573\" src=\"https:\/\/i0.wp.com\/urbanastrophotography.com\/wp-content\/uploads\/2022\/11\/image-3.png?fit=619%2C573&amp;ssl=1\" alt=\"William Optics Vixen-Style 50mm Finder Rings &amp; Bracket\n\" class=\"wp-image-10901\" srcset=\"https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/11\/image-3.png?w=619&amp;ssl=1 619w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/11\/image-3.png?resize=300%2C278&amp;ssl=1 300w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/11\/image-3.png?resize=500%2C463&amp;ssl=1 500w\" sizes=\"auto, (max-width: 619px) 100vw, 619px\" \/><\/figure>\n<\/div><\/div>\n\n\n<style>.kadence-column1754_0abbec-12 > .kt-inside-inner-col,.kadence-column1754_0abbec-12 > .kt-inside-inner-col:before{border-top-left-radius:0px;border-top-right-radius:0px;border-bottom-right-radius:0px;border-bottom-left-radius:0px;}.kadence-column1754_0abbec-12 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column1754_0abbec-12 > .kt-inside-inner-col{flex-direction:column;}.kadence-column1754_0abbec-12 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column1754_0abbec-12 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column1754_0abbec-12{position:relative;}@media all and (max-width: 1024px){.kadence-column1754_0abbec-12 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column1754_0abbec-12 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column1754_0abbec-12\"><div class=\"kt-inside-inner-col\">\n<p class=\"wp-block-paragraph\"><strong><span style=\"color: #fffffe;\" class=\"stk-highlight\">William Optics Vixen-Style 50mm Finder Rings &amp; Bracket<\/span><\/strong><br><span style=\"color: #fffffe;\" class=\"stk-highlight\"><a href=\"https:\/\/www.highpointscientific.com\/william-optics-vixen-style-finder-scope-mounting-bracket-m-fb50-b?rfsn=8945533.e3e877\" target=\"_blank\" rel=\"noreferrer noopener sponsored nofollow\">Buy from High Point Scientific<\/a><\/span><\/p>\n<\/div><\/div>\n\n\n<style>.kadence-column1754_8a5301-81 > .kt-inside-inner-col,.kadence-column1754_8a5301-81 > .kt-inside-inner-col:before{border-top-left-radius:0px;border-top-right-radius:0px;border-bottom-right-radius:0px;border-bottom-left-radius:0px;}.kadence-column1754_8a5301-81 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column1754_8a5301-81 > .kt-inside-inner-col{flex-direction:column;}.kadence-column1754_8a5301-81 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column1754_8a5301-81 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column1754_8a5301-81{position:relative;}@media all and (max-width: 1024px){.kadence-column1754_8a5301-81 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column1754_8a5301-81 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column1754_8a5301-81\"><div class=\"kt-inside-inner-col\">\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"683\" height=\"373\" src=\"https:\/\/i0.wp.com\/urbanastrophotography.com\/wp-content\/uploads\/2022\/11\/image-4.png?fit=683%2C373&amp;ssl=1\" alt=\"William Optics UniGuide 50mm Slide-Base Guide Scope with 1.25&quot; RotoLock\n\" class=\"wp-image-10902\" srcset=\"https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/11\/image-4.png?w=683&amp;ssl=1 683w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/11\/image-4.png?resize=300%2C164&amp;ssl=1 300w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2022\/11\/image-4.png?resize=500%2C273&amp;ssl=1 500w\" sizes=\"auto, (max-width: 683px) 100vw, 683px\" \/><\/figure>\n<\/div><\/div>\n\n\n<style>.kadence-column1754_f65e37-e3 > .kt-inside-inner-col,.kadence-column1754_f65e37-e3 > .kt-inside-inner-col:before{border-top-left-radius:0px;border-top-right-radius:0px;border-bottom-right-radius:0px;border-bottom-left-radius:0px;}.kadence-column1754_f65e37-e3 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column1754_f65e37-e3 > .kt-inside-inner-col{flex-direction:column;}.kadence-column1754_f65e37-e3 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column1754_f65e37-e3 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column1754_f65e37-e3{position:relative;}@media all and (max-width: 1024px){.kadence-column1754_f65e37-e3 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column1754_f65e37-e3 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column1754_f65e37-e3\"><div class=\"kt-inside-inner-col\">\n<p class=\"wp-block-paragraph\"><strong><span style=\"color: #fffffe;\" class=\"stk-highlight\">William Optics UniGuide 50mm Slide-Base Guide Scope with 1.25&#8243; RotoLock<\/span><\/strong><br><span style=\"color: #fffffe;\" class=\"stk-highlight\"><a href=\"https:\/\/www.astroshop.eu\/guidescopes\/william-optics-guidescope-uniguide-50mm-red\/p,62858?affiliate_id=UrbanAstrophotography\" target=\"_blank\" rel=\"noreferrer noopener sponsored nofollow\">Buy from Astroshop.eu<\/a><\/span><br><span style=\"color: #fffffe;\" class=\"stk-highlight\"><a href=\"https:\/\/www.highpointscientific.com\/william-optics-uniguide-50mm-slide-base-guide-scope-with-1-25-inch-rotolock-red-m-g50pb-wr?rfsn=8945533.e3e877\" target=\"_blank\" rel=\"noreferrer noopener sponsored nofollow\">Buy from High Point Scientific<\/a><\/span><\/p>\n<\/div><\/div>\n\n\n<style>.kadence-column1754_e89b88-91 > .kt-inside-inner-col,.kadence-column1754_e89b88-91 > .kt-inside-inner-col:before{border-top-left-radius:0px;border-top-right-radius:0px;border-bottom-right-radius:0px;border-bottom-left-radius:0px;}.kadence-column1754_e89b88-91 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column1754_e89b88-91 > .kt-inside-inner-col{flex-direction:column;}.kadence-column1754_e89b88-91 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column1754_e89b88-91 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column1754_e89b88-91{position:relative;}@media all and (max-width: 1024px){.kadence-column1754_e89b88-91 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column1754_e89b88-91 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column1754_e89b88-91\"><div class=\"kt-inside-inner-col\">\n<figure class=\"wp-block-image size-large\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"880\" height=\"586\" src=\"https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2021\/11\/Guidecam-2.jpg?resize=880%2C586&#038;ssl=1\" alt=\"Guidecam: ZWO ASI 120MM Mini\n\" class=\"wp-image-1403\" srcset=\"https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2021\/11\/Guidecam-2.jpg?resize=1024%2C682&amp;ssl=1 1024w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2021\/11\/Guidecam-2.jpg?resize=300%2C200&amp;ssl=1 300w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2021\/11\/Guidecam-2.jpg?resize=768%2C511&amp;ssl=1 768w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2021\/11\/Guidecam-2.jpg?resize=1536%2C1022&amp;ssl=1 1536w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2021\/11\/Guidecam-2.jpg?resize=500%2C333&amp;ssl=1 500w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2021\/11\/Guidecam-2.jpg?resize=800%2C532&amp;ssl=1 800w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2021\/11\/Guidecam-2.jpg?resize=1280%2C852&amp;ssl=1 1280w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2021\/11\/Guidecam-2.jpg?resize=1920%2C1278&amp;ssl=1 1920w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2021\/11\/Guidecam-2.jpg?resize=507%2C338&amp;ssl=1 507w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2021\/11\/Guidecam-2.jpg?w=2048&amp;ssl=1 2048w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2021\/11\/Guidecam-2.jpg?w=1760&amp;ssl=1 1760w\" sizes=\"auto, (max-width: 880px) 100vw, 880px\" \/><\/figure>\n<\/div><\/div>\n\n\n<style>.kadence-column1754_96eab9-0f > .kt-inside-inner-col,.kadence-column1754_96eab9-0f > .kt-inside-inner-col:before{border-top-left-radius:0px;border-top-right-radius:0px;border-bottom-right-radius:0px;border-bottom-left-radius:0px;}.kadence-column1754_96eab9-0f > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column1754_96eab9-0f > .kt-inside-inner-col{flex-direction:column;}.kadence-column1754_96eab9-0f > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column1754_96eab9-0f > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column1754_96eab9-0f{position:relative;}@media all and (max-width: 1024px){.kadence-column1754_96eab9-0f > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column1754_96eab9-0f > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column1754_96eab9-0f\"><div class=\"kt-inside-inner-col\">\n<p class=\"wp-block-paragraph\"><span style=\"color: #fffffe;\" class=\"stk-highlight\"><strong><span style=\"color: #fffffe;\" class=\"stk-highlight\"><strong>Guidecam: <span style=\"color: #fffffe;\" class=\"stk-highlight\"><span style=\"color: #fffffe;\" class=\"stk-highlight\"><span style=\"color: #fffffe;\" class=\"stk-highlight\">ZWO ASI 120MM Mini<\/span><\/span><\/span><\/strong><\/span><\/strong><br><a href=\"https:\/\/urbanastrophotography.com\/staging\/7355\/review-zwo-asi120mm-mini\/\" target=\"_blank\" rel=\"noreferrer noopener\">Read my review<\/a><\/span><br><span style=\"color: #fffffe;\" class=\"stk-highlight\"><a href=\"https:\/\/www.astroshop.eu\/astronomical-cameras\/zwo-camera-asi-120mm-mini-mono\/p,59338?affiliate_id=UrbanAstrophotography\" target=\"_blank\" rel=\"noreferrer noopener sponsored nofollow\">Buy from Astroshop.eu<\/a><\/span><br><span style=\"color: #fffffe;\" class=\"stk-highlight\"><a href=\"https:\/\/www.highpointscientific.com\/zwo-asi120mm-monochrome-mini-astronomy-camera-asi120mini?rfsn=8945533.e3e877\" target=\"_blank\" rel=\"noreferrer noopener sponsored nofollow\">Buy from High Point Scientific<\/a><\/span><\/p>\n<\/div><\/div>\n\n<\/div><\/div><\/div><\/div>\n\n<\/div><\/div>\n\n\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<hr class=\"is-style-wide wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<div class=\"nfd-container nfd-py-lg nfd-theme-dark nfd-bg-surface nfd-wb-text__text-20 engagement-columns ticss-c88d95c9 is-style-nfd-theme-dark wp-block-group has-eighty-black-background-color has-background\" style=\"border-top-width:1px;border-bottom-width:1px\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>Book a Masterclass<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">One-on-one online tuition.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/urbanastrophotography.com\/staging\/7355\/index.php\/courses\/#!\/art\/astronomyexperience\/68ee18bfbf3c73843b4c84fc?scope=gallery&amp;headless=true\" target=\"_blank\" rel=\" noreferrer noopener\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"880\" height=\"624\" src=\"https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2025\/12\/Urban-Astrophotography-online-Masterclass.jpg?resize=880%2C624&#038;ssl=1\" alt=\"Book an online astrophotography masterclass\" class=\"wp-image-10205\"\/><\/a><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>Art Store<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Own a fine art print from the gallery.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/urbanastrophotography.com\/staging\/7355\/index.php\/artstore\/\" target=\"_blank\" rel=\" noreferrer noopener\"><img loading=\"lazy\" decoding=\"async\" width=\"1318\" height=\"936\" src=\"https:\/\/i0.wp.com\/urbanastrophotography.com\/wp-content\/uploads\/2025\/12\/Screenshot-2025-12-18-220348.jpg?fit=880%2C625&amp;ssl=1\" alt=\"Visit the Urban Astrophotography Art Store\" class=\"wp-image-10206\" srcset=\"https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2025\/12\/Screenshot-2025-12-18-220348.jpg?w=1318&amp;ssl=1 1318w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2025\/12\/Screenshot-2025-12-18-220348.jpg?resize=300%2C213&amp;ssl=1 300w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2025\/12\/Screenshot-2025-12-18-220348.jpg?resize=1024%2C727&amp;ssl=1 1024w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2025\/12\/Screenshot-2025-12-18-220348.jpg?resize=768%2C545&amp;ssl=1 768w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2025\/12\/Screenshot-2025-12-18-220348.jpg?resize=500%2C355&amp;ssl=1 500w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2025\/12\/Screenshot-2025-12-18-220348.jpg?resize=800%2C568&amp;ssl=1 800w, https:\/\/i0.wp.com\/urbanastrophotography.com\/staging\/7355\/wp-content\/uploads\/2025\/12\/Screenshot-2025-12-18-220348.jpg?resize=1280%2C909&amp;ssl=1 1280w\" sizes=\"auto, (max-width: 880px) 100vw, 880px\" \/><\/a><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>Donate<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Help me fight the spam bots!<\/p>\n\n\n<style>\r\n        .wpedon-container 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