{"id":34039,"date":"2025-11-16T14:24:57","date_gmt":"2025-11-16T13:24:57","guid":{"rendered":"https:\/\/www.telescoop.nl\/?post_type=product&#038;p=34039"},"modified":"2026-03-20T09:52:16","modified_gmt":"2026-03-20T08:52:16","slug":"william-optics-50-200-refractor-guidescope-rotolock-gold-ota","status":"publish","type":"product","link":"https:\/\/www.telescoop.nl\/en\/william-optics-50-200-refractor-guidescope-rotolock-gold-ota\/","title":{"rendered":"William Optics 50\/200 Refractor Guidescope RotoLock Gold OTA"},"content":{"rendered":"<h3 class=\"wp-block-heading\"><strong>Perfect for astrophotography<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">You mount the William Optics AC 50\/200 guidescope parallel to your telescope tube. This way you follow stars and objects automatically. With a camera attached to the 1.25-inch connection, you can make long exposures without stars blurring.<\/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=\"34040\" src=\"https:\/\/www.telescoop.nl\/wp-content\/uploads\/2025\/11\/William-Optics-AC-50200-Guidescope-RotoLock-Gold-OTA-2.jpg\" alt=\"William Optics AC 50\/200 guidescope with the gold RotoLock clamp\" class=\"wp-image-34040\" title=\"\"><\/figure>\n<\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Large field of view<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The wide 5.7\u00b0 field of view helps you align quickly and accurately. You see more of the sky at once, which makes aiming easier.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Firm and easy attachment<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The RotoLock clamp keeps your camera or accessories securely centered. It is easy to operate by hand, even with gloves. This way, nothing tilts while shooting.<\/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=\"34041\" src=\"https:\/\/www.telescoop.nl\/wp-content\/uploads\/2025\/11\/William-Optics-AC-50200-Guidescope-RotoLock-Gold-OTA-1.jpg\" alt=\"William Optics AC 50\/200 guidescopes in available colors gold, blue and red\" class=\"wp-image-34041\" title=\"\"><\/figure>\n<\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Compact and lightweight<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">With a tube weight of 460 grams and a length of 265 mm, this guidescope is easy to mount and transport. Ideal for mobile setups or smaller telescopes.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Specifications<\/strong><\/h3>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Optics<\/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>Aperture (mm)<\/td><td>50<\/td><\/tr><tr><td>Focal length (mm)<\/td><td>200<\/td><\/tr><tr><td>Aperture ratio (f\/)<\/td><td>4<\/td><\/tr><tr><td>Resolution<\/td><td>2,3\u2033<\/td><\/tr><tr><td>Limit value (mag)<\/td><td>10,3<\/td><\/tr><tr><td>Light output<\/td><td>50<\/td><\/tr><tr><td>Max. useful magnification<\/td><td>100\u00d7<\/td><\/tr><tr><td>Type<\/td><td>Refractor<\/td><\/tr><tr><td>Tube weight (kg)<\/td><td>0,46<\/td><\/tr><tr><td>Tube diameter (mm)<\/td><td>54<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Focuser<\/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>Connection (camera side)<\/td><td>1,25\u2033<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Mount<\/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>Type of mount<\/td><td>Without mount<\/td><\/tr><tr><td>Design<\/td><td>OTA<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Included accessories<\/strong><\/h4>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Section<\/th><th>Description<\/th><\/tr><\/thead><tbody><tr><td>RotoLock<\/td><td>Yes<\/td><\/tr><tr><td>Dew cap<\/td><td>Yes<\/td><\/tr><tr><td>Tracking scope rings<\/td><td>No<\/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>Gold<\/td><\/tr><tr><td>Observation goals<\/td><td>Astrophotography (Guidescope)<\/td><\/tr><tr><td>Moon &amp; Planets<\/td><td>No<\/td><\/tr><tr><td>Nature observation<\/td><td>No<\/td><\/tr><tr><td>Nebulae &amp; galaxies<\/td><td>No<\/td><\/tr><tr><td>Sun<\/td><td>No<\/td><\/tr><tr><td>Recommended for<\/td><td>Advanced<\/td><\/tr><\/tbody><\/table><\/figure>","protected":false},"excerpt":{"rendered":"<p>William Optics AC 50\/200 comes with a RotoLock clamp and integrated dew cap, ready for accurate guiding with a firmly centered tracking camera. \u00a0<\/p>","protected":false},"featured_media":97475,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[643],"product_cat":[469,3064,3104,56],"product_tag":[],"class_list":["post-34039","product","type-product","status-publish","has-post-thumbnail","product_brand-william-optics","product_cat-astro-fotografie","product_cat-guidescopes","product_cat-overige-astrofotografie-accessoires","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":105495,"url":"https:\/\/www.telescoop.nl\/en\/levenhuk-new-skyline-pro-16\/","url_meta":{"origin":34039,"position":0},"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. 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