{"id":92822,"date":"2026-01-07T12:01:32","date_gmt":"2026-01-07T11:01:32","guid":{"rendered":"https:\/\/www.telescoop.nl\/?post_type=product&#038;p=92822"},"modified":"2026-09-04T14:04:32","modified_gmt":"2026-09-04T12:04:32","slug":"omegon-t2-extension-21mm-2-inch-connection","status":"publish","type":"product","link":"https:\/\/www.telescoop.nl\/en\/omegon-t2-verlengstuk-21mm-2-inch-aansluiting\/","title":{"rendered":"Omegon T2 Extension with 2 inch Connection (21 mm)"},"content":{"rendered":"<h2 class=\"wp-block-heading has-text-align-center\"><strong>Omegon T2 Extension Tube with 2-inch Connection (21 mm): extension tube and adapter sleeve in one<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">This extension adds 21 mm to your T2 chain, but also features a 2-inch outer diameter. This allows you to insert it directly into a 2-inch focuser or clamp as a support for your T2 setup.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">That makes it suitable for parfocalizing a guide camera: you build the camera to the correct length with this extension and insert the whole assembly into the guidescope.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/www.telescoop.nl\/wp-content\/uploads\/2026\/01\/Omegon-T2-Verlengstukken-en-2-aansluiting-21mm.jpg\" alt=\"Omegon 21 mm T2 extension tube with 2-inch barrel\" title=\"\"><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Features<\/h3>\n\n\n\n<ul class=\"wp-block-list\"><li>Both sides T2 (M42 x 0.75)<\/li><li>Optical length 21 mm<\/li><li>Exterior fits in 2 inch clamps<\/li><li>Aluminum, black<\/li><\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Compatibility<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">For T2 setups requiring extra length or to be used in a 2-inch sleeve, such as guide cameras in a guidescope.<\/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>T2 (M42 x 0.75), internal<\/td><\/tr><tr><td><strong>Other side<\/strong><\/td><td>T2 (M42 x 0.75), external<\/td><\/tr><tr><td><strong>Oversize<\/strong><\/td><td>2 inches<\/td><\/tr><tr><td><strong>Optical length<\/strong><\/td><td>21 mm<\/td><\/tr><tr><td><strong>Material<\/strong><\/td><td>Aluminum<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">You can find more adapters for this merk on the <a href=\"\/en\/brands\/omegon\/\">Omegon merk Page<\/a>.<\/p>","protected":false},"excerpt":{"rendered":"<p>21 mm extension tube with T2 thread on both sides and a 2-inch outer diameter so that it also fits into a 2-inch clamp.<\/p>","protected":false},"featured_media":99141,"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-92822","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","product_shipping_class-licht","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":92822,"position":0},"title":"ZWO Seestar S50 Pro","author":"Info telescoop","date":"25-08-2026","format":false,"excerpt":"De ZWO Seestar S50 Pro is de opvolger van de Seestar S50: 50 mm quadruplet APO (260 mm, f\/5.2), twee 4K-sensoren van 8,3 MP, een groothoekcamera van 63 graden voor de Melkweg tot 8K, drie ingebouwde filters, 10.000 mAh accu (tot 9 uur) en 128 GB opslag. Vier opnamemodi voor\u2026","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"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\/92822","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=92822"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/media\/99141"}],"wp:attachment":[{"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/media?parent=92822"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product_brand?post=92822"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product_cat?post=92822"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product_tag?post=92822"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}