{"id":112903,"date":"2026-10-09T16:52:46","date_gmt":"2026-10-09T14:52:46","guid":{"rendered":"https:\/\/www.telescoop.nl\/?post_type=product&#038;p=112903"},"modified":"2026-10-09T20:32:13","modified_gmt":"2026-10-09T18:32:13","slug":"adjustment-screws-for-the-gso-16-inch-ritchey-chretien-rc-bobs-knobs","status":"publish","type":"product","link":"https:\/\/www.telescoop.nl\/en\/afstelschroeven-voor-de-gso-16-inch-ritchey-chretien-rc-bobs-knobs\/","title":{"rendered":"Adjusting screws for the GSO 16 inch Ritchey-Chr\u00e9tien (RC) | Bob\u2019s Knobs"},"content":{"rendered":"<p class=\"wp-block-paragraph\">A Ritchey-Chr\u00e9tien of 16 inches is often mounted in a fixed position or star-gazing stand and is mainly used for photography. A slight deviation in the collimation is visible in the stars at the edge of the image. With these adjustment screws for the Ritchey-Chr\u00e9tien of 16 inches from Bob\u2019s Knobs, you can adjust them without a screwdriver or Allen key.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The buttons replace the original adjustment screws, so you turn with your fingers. The set is intended for the 16-inch RC from GSO. Other viewers for this work can be found at the <a href=\"https:\/\/www.telescoop.nl\/en\/telescopes\/telescopes-for-astrophotography\/\">telescopes for astrophotography<\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Replace the screws one by one and always turn just a little bit. Check the result on a star and then set it again, for example with a <a href=\"https:\/\/www.telescoop.nl\/en\/telescope-accessories\/astro-photography\/other-astrophotography-accessories\/focusing\/\">Bahtinov mask tailored to your tube<\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">If you have a smaller AT6RC or AT8RC, there is a <a href=\"https:\/\/www.telescoop.nl\/en\/adjustment-screws-for-the-catch-mirror-of-the-at6rc-and-at8rc-ritchey-chretien-bobs-knobs\/\">Set for AT6RC and AT8RC<\/a>.<\/p>","protected":false},"excerpt":{"rendered":"<p>Bob\u2019s Knobs for the GSO 16 inch Ritchey-Chr\u00e9tien. Adjusting the collimation is then done by hand instead of using tools.<\/p>","protected":false},"featured_media":112902,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[1559],"product_cat":[56,3091],"product_tag":[],"class_list":["post-112903","product","type-product","status-publish","has-post-thumbnail","product_brand-bobs-knobs","product_cat-telescoop-accessoires","product_cat-telescoop-onderdelen","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":111636,"url":"https:\/\/www.telescoop.nl\/en\/zwo-seestar-s50-pro\/","url_meta":{"origin":112903,"position":0},"title":"ZWO Seestar S50 Pro","author":"Info telescoop","date":"25-08-2026","format":false,"excerpt":"The ZWO Seestar S50 Pro is the successor to the Seestar S50: 50 mm quadruplet APO (260 mm, f\/5.2), two 8.3 MP 4K sensors, a 63-degree wide-angle camera for the Milky Way up to 8K, three built-in filters, a 10,000 mAh battery (up to 9 hours), and 128 GB of storage. Four capture modes for...","rel":"","context":"With 5 comments","block_context":{"text":"With 5 comments","link":"https:\/\/www.telescoop.nl\/en\/zwo-seestar-s50-pro\/#comments"},"img":{"alt_text":"ZWO Seestar S50 Pro hero","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/08\/zwo-seestar-s50-pro.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/08\/zwo-seestar-s50-pro.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/08\/zwo-seestar-s50-pro.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/08\/zwo-seestar-s50-pro.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]}],"_links":{"self":[{"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product\/112903","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=112903"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/media\/112902"}],"wp:attachment":[{"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/media?parent=112903"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product_brand?post=112903"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product_cat?post=112903"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product_tag?post=112903"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}