{"id":34186,"date":"2025-11-17T14:13:06","date_gmt":"2025-11-17T13:13:06","guid":{"rendered":"https:\/\/www.telescoop.nl\/?post_type=product&#038;p=34186"},"modified":"2026-03-20T11:57:22","modified_gmt":"2026-03-20T10:57:22","slug":"william-optics-3-5-rotator-rotolock-visual-back-2","status":"publish","type":"product","link":"https:\/\/www.telescoop.nl\/en\/william-optics-3-5-rotator-rotolock-visual-back-2\/","title":{"rendered":"William Optics 3.5 Rotator Rotolock Visual Back\u00a0"},"content":{"rendered":"<h3 class=\"wp-block-heading\"><strong>William Optics 3.5 - Firm locking with one simple twist<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The <strong>William Optics 3.5 Rotolock<\/strong> gives you direct control over your eyepieces. You lightly tighten the washer, and everything immediately sits firm and straight. No tilt. No play. You get a clear, stable image without fiddling with loose screws.<\/p>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-1 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" data-id=\"34196\" src=\"https:\/\/www.telescoop.nl\/wp-content\/uploads\/2025\/11\/William-Optics-3.5-Rotator-Rotolock-Visual-Back-5.jpg\" alt=\"William Optics 3.5 Rotolock adapters in available colors red, blue and gold.\" class=\"wp-image-34196\" title=\"\"><\/figure>\n<\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Quick change without disturbing your vision<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The Rotolock works on the same principle as a Twist-Lock. You twist, it clamps evenly around the entire eyepiece, and you can immediately continue looking. This is ideal if you often change between magnifications. You stay in flow, and your telescope stays perfectly aligned.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Perfect match for FLT refractors<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">You screw the adapter directly onto the 3.5\u2033 focuser of your FluoroStar refractor. On the eyepiece side, you get a generous 2\u2033 opening. So you can continue to use all your large eyepieces and get the most out of your field of view.<\/p>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-2 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" data-id=\"34195\" src=\"https:\/\/www.telescoop.nl\/wp-content\/uploads\/2025\/11\/William-Optics-3.5-Rotator-Rotolock-Visual-Back-4.jpg\" alt=\"William Optics 3.5 Rotolock adapter in gold with the separate black base ring.\" class=\"wp-image-34195\" title=\"\"><\/figure>\n<\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Strong, smooth and stylish<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The aluminum casing feels solid and remains stable even with heavy accessories. The blue finish gives your setup a sleek, professional look.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Specifications<\/strong><\/h3>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Capacity<\/strong><\/h4>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Feature<\/th><th>Description<\/th><\/tr><\/thead><tbody><tr><td>Ocular connection<\/td><td>2\u2033<\/td><\/tr><tr><td>Connection on the other side<\/td><td>3,5\u2033<\/td><\/tr><tr><td>Telescope connection<\/td><td>M63<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>General<\/strong><\/h4>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Feature<\/th><th>Description<\/th><\/tr><\/thead><tbody><tr><td>Color<\/td><td>Blue<\/td><\/tr><tr><td>Design<\/td><td>Eyepiece adapter<\/td><\/tr><tr><td>Type<\/td><td>Adapters<\/td><\/tr><tr><td>Product Safety<\/td><td>Yes<\/td><\/tr><\/tbody><\/table><\/figure>","protected":false},"excerpt":{"rendered":"<p>William Optics 3.5 comes as a Rotolock Visual Back adapter for 3.5\u2033 focusers, which provides a sturdy and tilt-free 2\u2033 connection for eyepieces and accessories. \u00a0<\/p>","protected":false},"featured_media":97572,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[643],"product_cat":[3110,590,538,56],"product_tag":[],"class_list":["post-34186","product","type-product","status-publish","has-post-thumbnail","product_brand-william-optics","product_cat-off-axis-guiders-camera-rotators","product_cat-montering-accessoires","product_cat-monteringen","product_cat-telescoop-accessoires","first","instock","taxable","shipping-taxable","purchasable","product-type-simple"],"bundled_by":[],"bundle_stock_status":"instock","bundle_stock_quantity":null,"bundle_virtual":false,"bundle_layout":"","bundle_add_to_cart_form_location":"","bundle_editable_in_cart":false,"bundle_sold_individually_context":"","bundle_item_grouping":"","bundle_min_size":"","bundle_max_size":"","bundle_price":[],"bundled_items":[],"bundle_sell_ids":[],"acf":[],"jetpack_sharing_enabled":true,"jetpack-related-posts":[{"id":107590,"url":"https:\/\/www.telescoop.nl\/en\/televue-oculairtas-transporttas\/","url_meta":{"origin":34186,"position":0},"title":"TeleVue Oculairtas \u2013 Carrying Case","author":"Abdullah Ibrar","date":"28-04-2026","format":false,"excerpt":"TeleVue Oculairtas \u2013 transporttas wordt geleverd met stevige foamvoering en biedt ruimte aan maximaal 13 oculairs en accessoires.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"TeleVue Transporttas Oculairtas gesloten grijze nylon oculairtas met handgrepen, ritssluiting en schouderriem op witte achtergrond","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Transporttas-Oculairtas-5.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Transporttas-Oculairtas-5.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Transporttas-Oculairtas-5.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Transporttas-Oculairtas-5.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":105023,"url":"https:\/\/www.telescoop.nl\/en\/levenhuk-blitz-50-base\/","url_meta":{"origin":34186,"position":1},"title":"Levenhuk Blitz 50 BASE \u2013 50\/600 Refractor","author":"Abdullah Ibrar","date":"01-04-2026","format":false,"excerpt":"The Levenhuk Blitz 50 BASE \u2013 50\/600 Refractor comes with 6mm and 20mm eyepieces, a 3x Barlow lens, a 5x24 finder scope, a diagonal mirror, and an aluminum tripod. This user-friendly beginner telescope is ideal for observing the Moon, bright objects, and simple daytime nature observation.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"Levenhuk Blitz 50 BASE achromatic refractor on a fully extended aluminum tripod, showing the complete setup from the front.","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/77098_levenhuk-blitz-50-base-telescope_00.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/77098_levenhuk-blitz-50-base-telescope_00.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/77098_levenhuk-blitz-50-base-telescope_00.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/77098_levenhuk-blitz-50-base-telescope_00.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/77098_levenhuk-blitz-50-base-telescope_00.jpg?resize=1050%2C600&ssl=1 3x"},"classes":[]},{"id":105495,"url":"https:\/\/www.telescoop.nl\/en\/levenhuk-new-skyline-pro-16\/","url_meta":{"origin":34186,"position":2},"title":"Levenhuk New Skyline PRO 16\u2033 \u2013 406\/1830 Dobson","author":"Abdullah Ibrar","date":"03-04-2026","format":false,"excerpt":"The Levenhuk New Skyline PRO 16\" \u2013 406\/1830 Dobson comes with 10 mm and 25 mm Pl\u00f6ssl eyepieces, an 8x40 optical finderscope, and a primary mirror cooling system. This very powerful telescope is ideal for observing the Moon, planets, and extremely detailed deep-sky objects.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"Levenhuk New Skyline PRO 16 inch main setup with optical tube on Dobsonian mount","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/86287_levenhuk-new-skyline-pro-16-telescope_00_500_465f630cb432cbffc2c1740e1897afbc.webp?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":104875,"url":"https:\/\/www.telescoop.nl\/en\/levenhuk-labzz-t3\/","url_meta":{"origin":34186,"position":3},"title":"Levenhuk LabZZ T3 - 60\/700 Refractor","author":"Abdullah Ibrar","date":"24-03-2026","format":false,"excerpt":"Levenhuk LabZZ T3 - 60\/700 Refractor comes with 4mm eyepiece, 12.5mm eyepiece, 1.5x eyepiece, 3x Barlow lens, 5x optical viewfinder, zenith mirror and aluminum tripod with accessory tray.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"Levenhuk LabZZ T3 - 60\/700 Refractor aluminium statief met accessoirebak","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/03\/Levenhuk-LabZZ-T3-60700-Refractor-1.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":107604,"url":"https:\/\/www.telescoop.nl\/en\/televue-tele-pod-advanced-azimutale-montering\/","url_meta":{"origin":34186,"position":4},"title":"TeleVue Tele-Pod Advanced \u2013 Azimuth Mount","author":"Abdullah Ibrar","date":"28-04-2026","format":false,"excerpt":"TeleVue Tele-Pod Advanced \u2013 azimutale montering wordt geleverd met aluminium statief, transporttas en biedt soepele bediening voor lichte telescopen. \u00a0","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"TeleVue Montering Tele-Pod Advanced close-up van de azimutale montagekop op zwart geanodiseerd aluminium statief met blauwe accentring op witte achtergrond","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Montering-Tele-Pod-Advanced-1.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Montering-Tele-Pod-Advanced-1.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Montering-Tele-Pod-Advanced-1.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Montering-Tele-Pod-Advanced-1.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":105543,"url":"https:\/\/www.telescoop.nl\/en\/levenhuk-skyline-travel-70\/","url_meta":{"origin":34186,"position":5},"title":"Levenhuk Skyline Travel 70 - 70\/400 Refractor","author":"Abdullah Ibrar","date":"03-04-2026","format":false,"excerpt":"The Levenhuk Skyline Travel 70 \u2013 70\/400 Refractor comes with 10mm and 20mm eyepieces, a 3x Barlow lens, a 5x24 finderscope, a diagonal prism, an aluminum tripod, and a backpack. This compact travel telescope is ideal for observing the Moon, bright planets, and nature.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"Levenhuk Skyline Travel 70 compact refractor with included backpack for easy transportation","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/levenhuk-telescope-skyline-travel-70_ZHSMksd_500_784c0dc006013c7ff5ad43e1c4c51569.webp?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]}],"_links":{"self":[{"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product\/34186","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/comments?post=34186"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/media\/97572"}],"wp:attachment":[{"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/media?parent=34186"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product_brand?post=34186"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product_cat?post=34186"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product_tag?post=34186"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}