{"id":93169,"date":"2026-01-09T14:18:38","date_gmt":"2026-01-09T13:18:38","guid":{"rendered":"https:\/\/www.telescoop.nl\/?post_type=product&#038;p=93169"},"modified":"2026-09-04T14:04:58","modified_gmt":"2026-09-04T12:04:58","slug":"omegon-sct-adapter","status":"publish","type":"product","link":"https:\/\/www.telescoop.nl\/en\/omegon-sct-adapter\/","title":{"rendered":"Omegon SCT Adapter C11 to 78mm"},"content":{"rendered":"<h2 class=\"wp-block-heading has-text-align-center\"><strong>Omegon SCT Adapter C11 to 78 mm: 78 mm accessories on your C11<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">This black anodized ring threads onto the C11 thread of a large Schmidt-Cassegrain and provides a 78 mm connection, the size of Omegon Crayford focusers and compatible accessories.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This makes it the single route for those who only need to bridge the C11 size; the C11-to-C8 bundle covers both sizes.<\/p>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-3 is-cropped wp-block-gallery-1 is-layout-flex wp-block-gallery-is-layout-flex\"><figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/www.telescoop.nl\/wp-content\/uploads\/2026\/01\/Omegon-SCT-adapter-1.jpg\" alt=\"Omegon SCT adapter ring from C11 thread to 78 mm connection\" title=\"\"><\/figure><figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/www.telescoop.nl\/wp-content\/uploads\/2026\/01\/Omegon-SCT-adapter.jpg\" alt=\"Omegon SCT adapter ring from C11 thread to 78 mm connection\" title=\"\"><\/figure><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Features<\/h3>\n\n\n\n<ul class=\"wp-block-list\"><li>Telescope side SC thread C11<\/li><li>Accessory side 78 mm<\/li><li>Optical length 31 mm<\/li><li>Black anodized aluminum, 80 g<\/li><\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Compatibility<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">For Schmidt-Cassegrains with C11 rear thread and accessories with 78 mm connection. Include the 31 mm optical length when dealing with tight backfocus.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Specifications<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Telescope silk<\/strong><\/td><td>SC thread C11<\/td><\/tr><tr><td><strong>Accessory side<\/strong><\/td><td>78 mm<\/td><\/tr><tr><td><strong>Optical length<\/strong><\/td><td>31 mm<\/td><\/tr><tr><td><strong>Diameter<\/strong><\/td><td>89 mm<\/td><\/tr><tr><td><strong>Weight<\/strong><\/td><td>80 g<\/td><\/tr><tr><td><strong>Color<\/strong><\/td><td>Black<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">You can find more adapters for this brand on the <a href=\"\/en\/brands\/omegon\/\">Omegon brand page<\/a>.<\/p>","protected":false},"excerpt":{"rendered":"<p>Adapter ring that mounts accessories with a 78 mm connection to the C11 thread of a Schmidt-Cassegrain.<\/p>","protected":false},"featured_media":99377,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[126],"product_cat":[56,499,469,3104],"product_tag":[],"class_list":["post-93169","product","type-product","status-publish","has-post-thumbnail","product_brand-omegon","product_cat-telescoop-accessoires","product_cat-adapters","product_cat-astro-fotografie","product_cat-overige-astrofotografie-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":93162,"url":"https:\/\/www.telescoop.nl\/en\/omegon-sct-adapter-bundel-82-5mm-50-8mm-c11-c8\/","url_meta":{"origin":93169,"position":0},"title":"Omegon SCT Adapter Bundle: 3.25 in to 2 in (C11 to C8)","author":"Info telescoop","date":"09-01-2026","format":false,"excerpt":"Adapter kit that connects a 78 mm ring-type focus lens to Schmidt-Cassegrain telescopes with C11 or C8 threaded connections.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/01\/Omegon-Bundel-SCT-adapter-met-C11-naar-C8-adapter-1.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":93165,"url":"https:\/\/www.telescoop.nl\/en\/omegon-v-power-adapter-c11-op-c8\/","url_meta":{"origin":93169,"position":1},"title":"Omegon V-Power Adapter, C11 to C8","author":"","date":"09-01-2026","format":false,"excerpt":"C11 to C8 thread transition ring with only 3 mm of optical length.","rel":"","context":"Similar post","block_context":{"text":"Similar 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post","link":""},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/10\/13084_1.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/10\/13084_1.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/10\/13084_1.jpg?resize=525%2C300&ssl=1 1.5x"},"classes":[]},{"id":113439,"url":"https:\/\/www.telescoop.nl\/en\/focuseradapter-2-inch-voor-celestron-c11-en-c14-schmidt-cassegrain-starlight\/","url_meta":{"origin":93169,"position":3},"title":"2 inch focus adapter for Celestron C11 and C14 Schmidt-Cassegrain | Starlight","author":"Info telescoop","date":"09-10-2026","format":false,"excerpt":"With this, you can mount a 2-inch Starlight focus lens on a Celestron C11 or C14, so you only need to adjust the main mirror roughly.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/10\/13044_1.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/10\/13044_1.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/10\/13044_1.jpg?resize=525%2C300&ssl=1 1.5x"},"classes":[]},{"id":33269,"url":"https:\/\/www.telescoop.nl\/en\/ioptron-adapter-iafs2-celestron-c11\/","url_meta":{"origin":93169,"position":4},"title":"iOptron Adapter iAFS2 \/ Celestron C11","author":"Info telescoop","date":"10-11-2025","format":false,"excerpt":"iOptron iAFS2 aluminum adapter for mounting the iAFS2 on Celestron C11 Schmidt-Cassegrains.","rel":"","context":"Similar post","block_context":{"text":"Similar 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