{"id":15377,"date":"2025-07-06T20:03:42","date_gmt":"2025-07-06T18:03:42","guid":{"rendered":"https:\/\/www.telescoop.nl\/?post_type=product&#038;p=15377"},"modified":"2026-08-25T15:09:45","modified_gmt":"2026-08-25T13:09:45","slug":"zwo-adapter-ring-125-inch-to-2-inch","status":"publish","type":"product","link":"https:\/\/www.telescoop.nl\/en\/zwo-adapterring-125-inch-naar-2-inch\/","title":{"rendered":"ZWO Adapter Ring 1.25 inch to 2 inch"},"content":{"rendered":"<h2 class=\"wp-block-heading has-text-align-center\"><strong>ZWO Adapter Ring 1.25 inch to 2 inch: Small Filters in Large Systems<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">With this adapter ring, you can use 1.25-inch filters in systems with a 2-inch (M48) thread, such as filter drawers, filter wheels, and focuser outputs. This is useful if you already own 1.25-inch filters and don't want to immediately purchase the larger size, or when using a small sensor where 1.25-inch is perfectly sufficient.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The ring is made of anodized aluminum, seals light-tight, and has an optical length of only 5mm, so your back focus is maintained and vignetting is prevented.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Features<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n\n<li>Mounts 1.25 inch filters in 2 inch (M48) threads<\/li>\n\n\n<li>Fits ZWO filter drawers and standard M48 mounts<\/li>\n\n\n<li>Light-tight connection of anodized aluminum<\/li>\n\n\n<li>Only 5 mm optical length: back focus is retained<\/li>\n\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Compatibility<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Input 1.25 inch filter thread, output M48 x 0.75 (2 inch). Space for one filter at a time. Note: with large sensors, a 1.25 inch filter may cause vignetting; it is best to use this combination with sensors up to approximately 4\/3 format.<\/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>Entrance<\/strong><\/td><td>1.25 inch (31.7 mm) filter thread<\/td><\/tr><tr><td><strong>Output<\/strong><\/td><td>2 inch thread (M48 x 0.75)<\/td><\/tr><tr><td><strong>Material<\/strong><\/td><td>anodized aluminum<\/td><\/tr><tr><td><strong>Number of filters<\/strong><\/td><td>1<\/td><\/tr><tr><td><strong>Optical length<\/strong><\/td><td>5 mm<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">A small accessory from the adapter program of <a href=\"https:\/\/www.telescoop.nl\/en\/brands\/zwo\/\">ZWO<\/a> that connects two filter sizes.<\/p>","protected":false},"excerpt":{"rendered":"<p>Anodized aluminum adapter ring that allows you to insert 1.25-inch filters into a 2-inch (M48) thread. Compact, lightproof, and maintains back focus.<\/p>","protected":false},"featured_media":21144,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[123],"product_cat":[56,499],"product_tag":[],"class_list":["post-15377","product","type-product","status-publish","has-post-thumbnail","product_brand-zwo","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":107494,"url":"https:\/\/www.telescoop.nl\/en\/televue-bandmate-type-2-h-beta-125-lijnfilter\/","url_meta":{"origin":15377,"position":0},"title":"TeleVue Bandmate Type 2 H-Beta 1.25\" \u2013 Line Filter","author":"Abdullah Ibrar","date":"28-04-2026","format":false,"excerpt":"Baader Planetarium Type 2 H-beta filter 1.25 inch for the Horsehead Nebula and related targets.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"TeleVue Filters Filter H-Beta Bandmate Type 2 1,25\" zwart 1,25 inch H-Beta filter met groene glaslaag en TeleVue Bandmate Type 2 opdruk op witte achtergrond","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Filters-Filter-H-Beta-Bandmate-Type-2-1-25-2.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Filters-Filter-H-Beta-Bandmate-Type-2-1-25-2.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Filters-Filter-H-Beta-Bandmate-Type-2-1-25-2.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Filters-Filter-H-Beta-Bandmate-Type-2-1-25-2.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":107498,"url":"https:\/\/www.telescoop.nl\/en\/televue-nebustar-uhc-125-uhc-filter\/","url_meta":{"origin":15377,"position":1},"title":"TeleVue Nebustar UHC 1.25\" - UHC Filter","author":"Abdullah Ibrar","date":"28-04-2026","format":false,"excerpt":"1.25-inch Nebustar UHC filter as an all-round contrast filter for emission nebulae.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"TeleVue Filters Filter UHC Nebustar 1,25\" zwart 1,25 inch UHC Nebustar filter met lichtgroen glas en TeleVue Bandmate Type 2 opdruk op witte achtergrond","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Filters-Filter-UHC-Nebustar-1-25-2.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Filters-Filter-UHC-Nebustar-1-25-2.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Filters-Filter-UHC-Nebustar-1-25-2.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Filters-Filter-UHC-Nebustar-1-25-2.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":109398,"url":"https:\/\/www.telescoop.nl\/en\/lunt-b1800d1-blockfilter-in-zenitspiegel-125-inch\/","url_meta":{"origin":15377,"position":2},"title":"Lunt B1800d1 blocking filter in 1.25-inch diagonal mirror","author":"Info telescoop","date":"16-07-2026","format":false,"excerpt":"Lunt block filter with 18mm free aperture, designed as a zenith mirror (1.25 inch). Suitable for telescopes up to 1620mm focal length. Only usable with Lunt H-alpha systems.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"Lunt B1800d1 Blockfilter in Zenitspiegel 1,25 inch","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/07\/Lunt-B1800d1-Blockfilter-in-Zenitspiegel-125-inch1.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/07\/Lunt-B1800d1-Blockfilter-in-Zenitspiegel-125-inch1.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/07\/Lunt-B1800d1-Blockfilter-in-Zenitspiegel-125-inch1.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/07\/Lunt-B1800d1-Blockfilter-in-Zenitspiegel-125-inch1.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/07\/Lunt-B1800d1-Blockfilter-in-Zenitspiegel-125-inch1.jpg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/07\/Lunt-B1800d1-Blockfilter-in-Zenitspiegel-125-inch1.jpg?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":107457,"url":"https:\/\/www.telescoop.nl\/en\/televue-m48-naar-24-60mm-filteradapter\/","url_meta":{"origin":15377,"position":3},"title":"TeleVue M48 to 2.4\u2033\/60mm Filter Adapter","author":"Abdullah Ibrar","date":"27-04-2026","format":false,"excerpt":"Filter adapter that puts 2-inch screw-in filters into the Imaging System train.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"TeleVue M48 adapter op 2.4\"\/60mm zwarte ringadapter voor 2,4 inch naar M48 aansluiting op witte achtergrond","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-M48-adapter-op-2-4-60mm.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-M48-adapter-op-2-4-60mm.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-M48-adapter-op-2-4-60mm.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-M48-adapter-op-2-4-60mm.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":107449,"url":"https:\/\/www.telescoop.nl\/en\/televue-adapter-24-m48-camera-adapter\/","url_meta":{"origin":15377,"position":4},"title":"TeleVue Adapter 2.4\u2033 \/ M48 \u2013 Camera Adapter","author":"Abdullah Ibrar","date":"27-04-2026","format":false,"excerpt":"Adapter from the Imaging System thread to the wide M48 photographic thread.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"TeleVue Adapter 2,4\" \/ M48 - 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