{"id":112848,"date":"2026-10-09T16:52:31","date_gmt":"2026-10-09T14:52:31","guid":{"rendered":"https:\/\/www.telescoop.nl\/?post_type=product&#038;p=112848"},"modified":"2026-10-09T20:31:33","modified_gmt":"2026-10-09T18:31:33","slug":"adjustment-screws-for-the-viewfinder-of-the-celestron-c5-standard-wire-bobs-knobs","status":"publish","type":"product","link":"https:\/\/www.telescoop.nl\/en\/afstelschroeven-voor-de-vangspiegel-van-de-celestron-c5-standaard-draad-bobs-knobs\/","title":{"rendered":"Adjusting screws for the viewfinder of the Celestron C5, standard thread | Bob\u2019s Knobs"},"content":{"rendered":"<p class=\"wp-block-paragraph\">Adjusting the focus with a screwdriver just before the corrector plate is no fun in the dark, and one misclick can scratch the glass. With these Bob\u2019s Knobs for the Celestron C5 that\u2019s no longer necessary: the small adjustment screws on the secondary mirror are replaced by screws with a large knob that you twist with your fingers.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This set is intended for the C5 with standard thread. The C5 belongs to the compact series. <a href=\"https:\/\/www.telescoop.nl\/en\/telescopes\/catadioptric-telescopes\/schmidt-cassegrain-telescopes\/\">Schmidt-Cassegrain telescopes<\/a>, And with such a small tube, the original screws are difficult to find. Please check beforehand which type of threaded connection your telescope has.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Replace the screws one by one so that the mirror stays in place. Then re-align the mirror on an unfocused star. If that still doesn't work, you can also use a <a href=\"https:\/\/www.telescoop.nl\/en\/artificial-star-for-collimation-and-star-test-astrozap\/\">artificial star for collimation<\/a> use.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">If your C5 has metric thread, then use the <a href=\"https:\/\/www.telescoop.nl\/en\/afstelschroeven-voor-de-vangspiegel-van-de-celestron-c5-f10-metrische-draad-bobs-knobs\/\">set with metric threaded connection<\/a>.<\/p>","protected":false},"excerpt":{"rendered":"<p>Large adjustment buttons for the viewfinder of the Celestron C5 with standard screw thread. This way you can adjust the collimation by hand.<\/p>","protected":false},"featured_media":112847,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[1559],"product_cat":[56,3091],"product_tag":[],"class_list":["post-112848","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":112848,"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\/112848","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=112848"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/media\/112847"}],"wp:attachment":[{"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/media?parent=112848"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product_brand?post=112848"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product_cat?post=112848"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product_tag?post=112848"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}