{"id":92822,"date":"2026-01-07T12:01:32","date_gmt":"2026-01-07T11:01:32","guid":{"rendered":"https:\/\/www.telescoop.nl\/?post_type=product&p=92822"},"modified":"2026-03-06T11:58:32","modified_gmt":"2026-03-06T10:58:32","slug":"omegon-t2-extension-21mm-2-inch-connection","status":"publish","type":"product","link":"https:\/\/staging.telescoop.nl\/en\/omegon-t2-verlengstuk-21mm-2-inch-aansluiting\/","title":{"rendered":"Omegon T2 Extension with 2 inch Connection (21 mm)"},"content":{"rendered":"

Omegon T2 Extensions - simple solution for perfect focusing<\/strong>
The Omegon T2 Extensions help you position your camera at just the right distance, so focusing is faster and you instantly get a clear and stable image without endless adjustments. This extension is ideal when you need just a little extra back focus or want to make a guide camera parfocal, keeping everything in focus at the same time and making your observation or shooting smoother.<\/p>\n\n\n\n

Smart design that just works<\/strong>
The adapter has a T2 thread on both sides and screws directly between your telescope and camera, ensuring a tight connection without any play and a reliably sharp image. With an optical length of 21 mm, this extension provides exactly the extra distance that is often needed when focusing just won't work, especially with cameras and accessories that are sensitive to the correct position.<\/p>\n\n\n\n

\"Omegon<\/figure>\n\n\n\n

Practical and sturdy for daily use<\/strong>
The 2\u2033 connection makes this extension adapter widely usable and easy to combine with other accessories, while the black finish prevents distracting reflections and maintains contrast in your image. This is a small accessory with a big effect: less hassle, faster focus and more time to enjoy your observation or shooting.<\/p>\n\n\n\n

What we recommend<\/strong>
\u2713 Astrophotography: great for additional back focus and camera tuning
\u2713 Guiding: ideal for making guide cameras parfocal
\u2713 Visual observation: only required for specific accessories
\u2717 Independent use: not intended without camera or optical train<\/p>\n\n\n\n

Specifications<\/h3>\n\n\n\n

Capacity<\/strong><\/p>\n\n\n\n

Feature<\/th>Description<\/th><\/tr><\/thead>
Telescope connection<\/td>T2<\/td><\/tr>
Connection other side<\/td>2\u2033<\/td><\/tr>
Optical length (mm)<\/td>21<\/td><\/tr>
Camera side connection<\/td>T2<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

General<\/strong><\/p>\n\n\n\n

Feature<\/th>Description<\/th><\/tr><\/thead>
Color<\/td>Black<\/td><\/tr>
Type<\/td>Adapter<\/td><\/tr>
Design<\/td>Extension<\/td><\/tr><\/tbody><\/table><\/figure>","protected":false},"excerpt":{"rendered":"

Omegon T2 Extensions<\/span>\u00a0come with T2 internal and external threads and 2\u2033 connection, with an optical length of 21mm - ideal for parfocalizing guide cameras or creating additional back focus in photo adapters and astrophotography.<\/span><\/p>","protected":false},"featured_media":99141,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[126],"product_cat":[56,499],"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_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":92819,"url":"https:\/\/staging.telescoop.nl\/en\/omegon-t2-verlengstuk-30mm\/","url_meta":{"origin":92822,"position":0},"title":"Omegon T2 Extension - 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30mm","author":"","date":"07-01-2026","format":false,"excerpt":"Omegon M48 Extension comes with M48 (M48x0.75) female and male threads, 30mm optical length and black aluminum housing - ideal for achieving the right distance and a solid, dew-free connection between telescope and camera in M48 systems.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2026\/01\/Omegon-Verlengstuk-M48-Extension-30mm-1.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2026\/01\/Omegon-Verlengstuk-M48-Extension-30mm-1.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2026\/01\/Omegon-Verlengstuk-M48-Extension-30mm-1.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2026\/01\/Omegon-Verlengstuk-M48-Extension-30mm-1.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":26760,"url":"https:\/\/staging.telescoop.nl\/en\/omegon-verlengstuk-30-mm-t2\/","url_meta":{"origin":92822,"position":2},"title":"Omegon Extension 30 mm T2","author":"","date":"26-08-2025","format":false,"excerpt":"\u00a0 Omegon Extension 30 mm T2 comes with a T2 inner and outer thread.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"Omegon Verlengstuk 30 mm T2","src":"https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/08\/Omegon-T-schroefdraad-verlengstuk-30mm.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/08\/Omegon-T-schroefdraad-verlengstuk-30mm.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/08\/Omegon-T-schroefdraad-verlengstuk-30mm.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/08\/Omegon-T-schroefdraad-verlengstuk-30mm.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/08\/Omegon-T-schroefdraad-verlengstuk-30mm.jpg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/08\/Omegon-T-schroefdraad-verlengstuk-30mm.jpg?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":92813,"url":"https:\/\/staging.telescoop.nl\/en\/omegon-m48-verlengstuk-20mm\/","url_meta":{"origin":92822,"position":3},"title":"Omegon M48 Extension Piece - 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