{"id":26226,"date":"2025-08-25T16:11:08","date_gmt":"2025-08-25T14:11:08","guid":{"rendered":"https:\/\/www.telescoop.nl\/?post_type=product&#038;p=26226"},"modified":"2026-03-03T20:24:30","modified_gmt":"2026-03-03T19:24:30","slug":"omegon-field-flattener-2-inch","status":"publish","type":"product","link":"https:\/\/staging.telescoop.nl\/en\/omegon-field-flattener-2-inch\/","title":{"rendered":"Omegon Field Flattener 2 inch"},"content":{"rendered":"<p class=\"wp-block-paragraph\">Omegon Field Flattener 2 inch corrects image field curvature in refractors, so that stars remain sharp and dot-shaped across the entire image plane - all the way to the far corners. Without a flattener, stars at the edges often look like blurry discs, especially when using large sensors. With this flattener, you can create even astrophotos with pin-sharp stars, ideal for DSLRs and full-frame cameras.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The flattener is suitable for refractors with an aperture ratio of f\/4 to f\/8. The focal length of your telescope determines the required backfocus distance between the flattener and the sensor. Depending on the focal length, this is between 108 and 128 mm. Thanks to the exceptionally long back focus of 109 mm, there is plenty of room for accessories such as filter wheels, flip mirrors or an off-axis guider.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">With the M48 thread on both sides, you take full advantage of the full light exposure, without vignetting as is often the case with T2 (M42). The high-quality multicoating on the lenses ensures maximum light transmission and contrast, so your photos are not only flatter, but also brighter and more color accurate.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Application<\/strong><br>Suitable for all modern ED refractors with an aperture ratio of f\/4 to f\/8. Ideal for astrophotographers working with full-frame or APS-C cameras who want their field of view to be completely flat. Not intended for use with Newtons or other reflector telescopes.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Specifications<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Telescope connection: M48 (2\u2033)<\/li>\n\n\n\n<li>Camera connection: M48<\/li>\n\n\n\n<li>Suitable for: refractors f\/4 to f\/8<\/li>\n\n\n\n<li>Back focus: 108-128 mm (depending on focal length)<\/li>\n\n\n\n<li>Includes extensions up to 53 mm chip distance<\/li>\n\n\n\n<li>Lens coating: fully multicoated<\/li>\n\n\n\n<li>Type: flattener (image field equalizer)<\/li>\n\n\n\n<li>Material: aluminum, black anodized<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p data-start=\"307\" data-end=\"720\">\u00a0<\/p>\n<p data-start=\"153\" data-end=\"305\">Omegon Field Flattener 2 inch comes with M48 threads on both sides and set of extensions for optimal back focus.<\/p>","protected":false},"featured_media":26229,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[126],"product_cat":[469,587,3107,3105,3104,592,56],"product_tag":[],"class_list":["post-26226","product","type-product","status-publish","has-post-thumbnail","product_brand-omegon","product_cat-astro-fotografie","product_cat-camera-accessoires","product_cat-flatteners","product_cat-optische-accessoires","product_cat-overige-astrofotografie-accessoires","product_cat-reducers-flatteners","product_cat-telescoop-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":26282,"url":"https:\/\/staging.telescoop.nl\/en\/omegon-pro-field-flattener-2-inch\/","url_meta":{"origin":26226,"position":0},"title":"Omegon Pro Field Flattener 2 inch","author":"","date":"25-08-2025","format":false,"excerpt":"\u00a0 Omegon Pro Field Flattener 2 inch comes with M68 thread, M48 adapter and back focus up to 106 mm.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"Omegon Pro Field Flattener 2 inch","src":"https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/08\/Omegon-Pro-Field-Flattener-2-5-.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/08\/Omegon-Pro-Field-Flattener-2-5-.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/08\/Omegon-Pro-Field-Flattener-2-5-.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/08\/Omegon-Pro-Field-Flattener-2-5-.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/08\/Omegon-Pro-Field-Flattener-2-5-.jpg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/08\/Omegon-Pro-Field-Flattener-2-5-.jpg?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":34228,"url":"https:\/\/staging.telescoop.nl\/en\/william-optics-flat6a-iii-reducer-flattener-adjustable-2-inch\/","url_meta":{"origin":26226,"position":1},"title":"William Optics Flat6A III Reducer Flattener Adjustable 50.8 mm","author":"","date":"17-11-2025","format":false,"excerpt":"William Optics Flat6AIII comes with adjustable 0.8x reducer, M63 telescope connector, M48 camera thread, Ohara glass, anti-reflection coating and distance scale - ideal for full-frame astrophotography with William Optics refractors.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/11\/William-Optics-Flat6AIII-Reducer-Flattener-Adjustable-1.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/11\/William-Optics-Flat6AIII-Reducer-Flattener-Adjustable-1.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/11\/William-Optics-Flat6AIII-Reducer-Flattener-Adjustable-1.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/11\/William-Optics-Flat6AIII-Reducer-Flattener-Adjustable-1.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":91980,"url":"https:\/\/staging.telescoop.nl\/en\/omegon-pro-104-650-apo-refractor-ota-field-flattener\/","url_meta":{"origin":26226,"position":2},"title":"Omegon Pro 104\/650 APO Refractor OTA + 2\u2033 Field Flattener","author":"","date":"02-01-2026","format":false,"excerpt":"Omegon Pro APO AP 104\/650 Refractor\u00a0wordt geleverd met FPL-53\/FPL-51 triplet-objectief, 2,9\" dualspeed focuser, field flattener, 1,25\"\/2\" adapter en aluminium transportkoffer \u2013 ideaal voor gevorderde astrofotografen die op zoek zijn naar haarscherpe deep-sky beelden zonder kleurfouten.","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-Apochromatische-refractor-Pro-APO-AP-104-650-ED-OTA-2-Field-Flattener-17.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2026\/01\/Omegon-Apochromatische-refractor-Pro-APO-AP-104-650-ED-OTA-2-Field-Flattener-17.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2026\/01\/Omegon-Apochromatische-refractor-Pro-APO-AP-104-650-ED-OTA-2-Field-Flattener-17.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2026\/01\/Omegon-Apochromatische-refractor-Pro-APO-AP-104-650-ED-OTA-2-Field-Flattener-17.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":16221,"url":"https:\/\/staging.telescoop.nl\/en\/omegon-80-500-pro-apo-ed-carbon-ota-field-flattener\/","url_meta":{"origin":26226,"position":3},"title":"Omegon 80\/500 Pro APO ED Carbon OTA + Field Flattener","author":"Info telescoop","date":"19-07-2025","format":false,"excerpt":"Omegon 80\/500 Pro APO ED Carbon OTA + Field Flattener \u2013 Volledig vlak beeldveld op volformaat. Ideaal voor scherpe astrofoto's met FPL-53 optiek en carbon buis.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"Omegon 80\/500 Pro APO ED Carbon OTA + Field Flattener","src":"https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/07\/Omegon-Apochromatische-refractor-Pro-APO-AP-80-500-ED-Carbon-OTA-Field-Flattener.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/07\/Omegon-Apochromatische-refractor-Pro-APO-AP-80-500-ED-Carbon-OTA-Field-Flattener.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/07\/Omegon-Apochromatische-refractor-Pro-APO-AP-80-500-ED-Carbon-OTA-Field-Flattener.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/07\/Omegon-Apochromatische-refractor-Pro-APO-AP-80-500-ED-Carbon-OTA-Field-Flattener.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/07\/Omegon-Apochromatische-refractor-Pro-APO-AP-80-500-ED-Carbon-OTA-Field-Flattener.jpg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/07\/Omegon-Apochromatische-refractor-Pro-APO-AP-80-500-ED-Carbon-OTA-Field-Flattener.jpg?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":34224,"url":"https:\/\/staging.telescoop.nl\/en\/william-optics-flat-gt-flattener-gran-turismo-refractor-2-inch\/","url_meta":{"origin":26226,"position":4},"title":"William Optics Flat GT Flattener for GranTurismo Refractor","author":"","date":"17-11-2025","format":false,"excerpt":"William Optics Flat GT comes with M63 telescope mount, M48 camera thread, integrated filter thread, 2-element optics, full-frame correction and distance ring for GT71 and GT81 - for sharp stars all the way to the image edge.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/11\/William-Optics-Flat-GT-1.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/11\/William-Optics-Flat-GT-1.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/11\/William-Optics-Flat-GT-1.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/11\/William-Optics-Flat-GT-1.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]}],"_links":{"self":[{"href":"https:\/\/staging.telescoop.nl\/en\/wp-json\/wp\/v2\/product\/26226","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/staging.telescoop.nl\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/staging.telescoop.nl\/en\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/staging.telescoop.nl\/en\/wp-json\/wp\/v2\/comments?post=26226"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/staging.telescoop.nl\/en\/wp-json\/wp\/v2\/media\/26229"}],"wp:attachment":[{"href":"https:\/\/staging.telescoop.nl\/en\/wp-json\/wp\/v2\/media?parent=26226"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/staging.telescoop.nl\/en\/wp-json\/wp\/v2\/product_brand?post=26226"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/staging.telescoop.nl\/en\/wp-json\/wp\/v2\/product_cat?post=26226"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/staging.telescoop.nl\/en\/wp-json\/wp\/v2\/product_tag?post=26226"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}