{"id":15420,"date":"2025-07-07T11:12:42","date_gmt":"2025-07-07T09:12:42","guid":{"rendered":"https:\/\/www.telescoop.nl\/?post_type=product&#038;p=15420"},"modified":"2026-08-23T15:12:29","modified_gmt":"2026-08-23T13:12:29","slug":"zwo-ff80-apo-0-76x-full-frame-reducer","status":"publish","type":"product","link":"https:\/\/www.telescoop.nl\/en\/zwo-ff80-apo-0-76x-full-frame-reducer\/","title":{"rendered":"ZWO FF80 APO 0.76\u00d7 Full-Frame Reducer"},"content":{"rendered":"<h2 class=\"wp-block-heading has-text-align-center\"><strong>ZWO FF80 APO 0.76x Full-Frame Reducer: more field for the FF80<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">This reducer shortens the focal length of the ZWO FF80 APO from 600 to 456 mm and increases the focal ratio to f\/5.7. Large nebulae and star fields thus fit into the full-frame field of view, and exposure times are reduced by nearly a quarter.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The three-element design with an ED glass element keeps stars round into the corners and the field flat. The built-in 2-inch filter thread (M48 x 0.75) accommodates narrowband or color filters without extra adapters, and the M48 and M54 output threads fit all common filter wheels and camera adapters.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Features<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n\n<li>From 600 to 456 mm focal length (0.76x, f\/5.7)<\/li>\n\n\n<li>Three-element optics with ED glass for a flat full-frame field<\/li>\n\n\n<li>Built-in 2-inch filter thread (M48 x 0.75)<\/li>\n\n\n<li>M48 and M54 outputs for filter wheels and camera adapters<\/li>\n\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Compatibility<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Exclusively for the ZWO FF80 APO: the reducer mounts directly onto the M68 flange of the telescope. For the FF65 APO, there is a dedicated 0.75x reducer.<\/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>Reduction factor<\/strong><\/td><td>0.76x (600 to 456 mm, f\/5.7)<\/td><\/tr><tr><td><strong>Optics<\/strong><\/td><td>3 elements, including 1 ED glass element<\/td><\/tr><tr><td><strong>Video coverage<\/strong><\/td><td>full-frame<\/td><\/tr><tr><td><strong>Assembly<\/strong><\/td><td>M68 flange of the FF80 APO<\/td><\/tr><tr><td><strong>Filter thread<\/strong><\/td><td>2 inch (M48 x 0.75), built-in<\/td><\/tr><tr><td><strong>Outputs<\/strong><\/td><td>M48 x 0.75 to M54 x 0.75<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">The reducer that the FF80 APO from <a href=\"https:\/\/www.telescoop.nl\/en\/brands\/zwo\/\">ZWO<\/a> transforms into a fast widefield astrograph.<\/p>","protected":false},"excerpt":{"rendered":"<p>0.76x focal reducer for the ZWO FF80 APO: from 600 to 456 mm (f\/5.7) with a flat full-frame field. Three-element optics with ED glass and built-in 2-inch filter thread.<\/p>","protected":false},"featured_media":21204,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[123],"product_cat":[56,469,3105,589,3104,3106,592],"product_tag":[],"class_list":["post-15420","product","type-product","status-publish","has-post-thumbnail","product_brand-zwo","product_cat-telescoop-accessoires","product_cat-astro-fotografie","product_cat-optische-accessoires","product_cat-optische-accessoires-v1","product_cat-overige-astrofotografie-accessoires","product_cat-reducers","product_cat-reducers-flatteners","product_shipping_class-licht","first","outofstock","taxable","shipping-taxable","product-type-simple"],"bundled_by":[],"bundle_stock_status":"outofstock","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":15272,"url":"https:\/\/www.telescoop.nl\/en\/zwo-reducer-075x-voor-ff65-apo\/","url_meta":{"origin":15420,"position":0},"title":"ZWO Reducer 0.75x for FF65 APO","author":"","date":"05-07-2025","format":false,"excerpt":"0.75x focal reducer specially designed for the ZWO FF65 APO: wider field of view, shorter exposures, and a flat field up to full-frame. Includes M48 and M54 adapters and 2-inch filter thread.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"ZWO Reducer 0,75x f\u00fcr FF65 APO","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/07\/ZWO-F65-Reducer-0-75x.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/07\/ZWO-F65-Reducer-0-75x.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/07\/ZWO-F65-Reducer-0-75x.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/07\/ZWO-F65-Reducer-0-75x.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/07\/ZWO-F65-Reducer-0-75x.jpg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/07\/ZWO-F65-Reducer-0-75x.jpg?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":15292,"url":"https:\/\/www.telescoop.nl\/en\/zwo-ff65-apo-65-416-quintuplet-ota\/","url_meta":{"origin":15420,"position":1},"title":"ZWO FF65 APO 65\/416 Quintuplet OTA","author":"Info telescoop","date":"05-07-2025","format":false,"excerpt":"The ZWO FF65 APO 65\/416 quintuplet OTA delivers a completely flat field of view up to full-frame size thanks to built-in correction and ED glass. Lightweight and compact, ready for direct deep-sky photography.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"ZWO FF65 APO 65\/416 Quintuplet OTa","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/07\/ZWO-Apochromatische-refractor-FF65-AP-65-416-Quintuplet-OTA.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/07\/ZWO-Apochromatische-refractor-FF65-AP-65-416-Quintuplet-OTA.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/07\/ZWO-Apochromatische-refractor-FF65-AP-65-416-Quintuplet-OTA.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/07\/ZWO-Apochromatische-refractor-FF65-AP-65-416-Quintuplet-OTA.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/07\/ZWO-Apochromatische-refractor-FF65-AP-65-416-Quintuplet-OTA.jpg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/07\/ZWO-Apochromatische-refractor-FF65-AP-65-416-Quintuplet-OTA.jpg?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":26452,"url":"https:\/\/www.telescoop.nl\/en\/omegon-reducer-0-7x-voor-108-600-quintuplet-apo\/","url_meta":{"origin":15420,"position":2},"title":"Omegon Reducer 0.7x for 108\/600 Quintuplet APO","author":"","date":"26-08-2025","format":false,"excerpt":"Model-specific reducer of 0.7x for the Omegon Pro APO 108\/600 Quintuplet OTA. After reduction 420 mm at f\/3.9, back focus 55 mm.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"Omegon Reducer 0.7x voor 108\/600 Quintuplet APO","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/08\/Omegon-Reducer-0-7x-voor-108-600-Vijfling-APO.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/08\/Omegon-Reducer-0-7x-voor-108-600-Vijfling-APO.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/08\/Omegon-Reducer-0-7x-voor-108-600-Vijfling-APO.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/08\/Omegon-Reducer-0-7x-voor-108-600-Vijfling-APO.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/08\/Omegon-Reducer-0-7x-voor-108-600-Vijfling-APO.jpg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/08\/Omegon-Reducer-0-7x-voor-108-600-Vijfling-APO.jpg?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":15288,"url":"https:\/\/www.telescoop.nl\/en\/zwo-ff130-apo-130-1000-quadruplet-ota\/","url_meta":{"origin":15420,"position":3},"title":"ZWO FF130 APO 130\/1000 Quadruplet OTA","author":"Info telescoop","date":"05-07-2025","format":false,"excerpt":"The ZWO FF130 APO quadruplet has integrated correction for full-frame sensors and larger. Perfect color correction, flat field, and robust build for advanced astrophotography.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"ZWO FF130 APO 130\/1000 Quadruplet OTA","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/07\/ZWO-Apochromatische-refractor-FF130-AP-130-1000-Quadruplet-OTA.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/07\/ZWO-Apochromatische-refractor-FF130-AP-130-1000-Quadruplet-OTA.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/07\/ZWO-Apochromatische-refractor-FF130-AP-130-1000-Quadruplet-OTA.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/07\/ZWO-Apochromatische-refractor-FF130-AP-130-1000-Quadruplet-OTA.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/07\/ZWO-Apochromatische-refractor-FF130-AP-130-1000-Quadruplet-OTA.jpg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/07\/ZWO-Apochromatische-refractor-FF130-AP-130-1000-Quadruplet-OTA.jpg?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":34223,"url":"https:\/\/www.telescoop.nl\/en\/william-optics-0-72x-reducer-flattener-full-frame\/","url_meta":{"origin":15420,"position":4},"title":"William Optics 0.72x Reducer\/Flattener Full-Frame","author":"","date":"17-11-2025","format":false,"excerpt":"William Optics 0.72x reducer-flattener for full-frame: Ohara triplet, M92 telescope side, M48 camera side with filter thread and adjustable back focus. For the GT102, FLT132, and GT153.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/11\/William-Optics-0.72x-ReducerFlattener-Full-Frame-1.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":34228,"url":"https:\/\/www.telescoop.nl\/en\/william-optics-flat6a-iii-reducer-flattener-adjustable-2-inch\/","url_meta":{"origin":15420,"position":5},"title":"William Optics Flat6A III Reducer Flattener Adjustable 50.8 mm","author":"","date":"17-11-2025","format":false,"excerpt":"William Optics Flat6AIII adjustable flattener-reducer 0.8x: Ohara glass, M63 telescope side, M48 camera side, 48mm filter thread and distance scale. For GT71, GT81, Z81, Z103 and f\/6 to f\/7.5 refractors.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/11\/William-Optics-Flat6AIII-Reducer-Flattener-Adjustable-1.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]}],"_links":{"self":[{"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product\/15420","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=15420"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/media\/21204"}],"wp:attachment":[{"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/media?parent=15420"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product_brand?post=15420"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product_cat?post=15420"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product_tag?post=15420"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}