{"id":34223,"date":"2025-11-17T15:31:35","date_gmt":"2025-11-17T14:31:35","guid":{"rendered":"https:\/\/www.telescoop.nl\/?post_type=product&#038;p=34223"},"modified":"2026-03-03T20:24:38","modified_gmt":"2026-03-03T19:24:38","slug":"william-optics-0-72x-reducer-flattener-full-frame","status":"publish","type":"product","link":"https:\/\/staging.telescoop.nl\/en\/william-optics-0-72x-reducer-flattener-full-frame\/","title":{"rendered":"William Optics 0.72x Reducer\/Flattener Full-Frame"},"content":{"rendered":"<p class=\"wp-block-paragraph\"><strong>William Optics 0.72x - Flattener and Reducer for Full-Frame<\/strong><br>The <strong>William Optics 0.72x<\/strong> Combines a flattener and reducer in one. It corrects the curvature of the image field and reduces the focal length by up to 0.72x. This means you'll expose longer objects faster and utilize the full field of view of your full-frame sensor.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img decoding=\"async\" src=\"https:\/\/staging.telescoop.nl\/wp-content\/uploads\/2025\/11\/William-Optics-0.72x-ReducerFlattener-Full-Frame-1.jpg\" alt=\"William Optics 0.72x reducer\/flattener front view with APO inscription and gold cap\" class=\"wp-image-34260\" title=\"\"><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">This flattener is designed for the large William apo refractors: GT102 (3\u2033 focuser), FLT132 and GT153. It uses a triplet of high-quality Ohara glass and has an FMC coating for maximum sharpness and minimum reflections. Your stars stay sharp to the edges of the image, even on large sensors.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img decoding=\"async\" src=\"https:\/\/staging.telescoop.nl\/wp-content\/uploads\/2025\/11\/William-Optics-0.72x-ReducerFlattener-Full-Frame-5.jpg\" alt=\"William Optics 0.72x flattener diagonal rear view with M48 connection\" class=\"wp-image-34264\" title=\"\"><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">You can adjust the distance to the telescope by rotating the flattener. This way you adjust it for different cameras, from DSLR to CCD and CMOS. Filters and other accessories easily screw onto the M48 filter thread. The system remains stable and sturdy during long exposures.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">With the William Optics 0.72x you get professional results from your refractor, without fuss and with an optimally exposed and sharp image.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Specifications<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Capacity<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Feature<\/th><th>Description<\/th><\/tr><\/thead><tbody><tr><td>Connection on camera side<\/td><td>M48<\/td><\/tr><tr><td>Telescope connection<\/td><td>M92<\/td><\/tr><tr><td>Focal reducer<\/td><td>0,72<\/td><\/tr><tr><td>Corrected field of view (mm)<\/td><td>44,4<\/td><\/tr><tr><td>Filter thread<\/td><td>yes<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>General<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Feature<\/th><th>Description<\/th><\/tr><\/thead><tbody><tr><td>Type<\/td><td>Flatteners, Correctors, Reducers<\/td><\/tr><tr><td>Design<\/td><td>Flattener<\/td><\/tr><\/tbody><\/table><\/figure>","protected":false},"excerpt":{"rendered":"<p>William Optics 0.72x comes with 0.72x reducer\/flattener, M92 telescope connector, M48 camera thread, Ohara glass, integrated M48 filter thread and adjustable back focus - perfect for full-frame astrophotography with GT102, GT153, FLT132 and FLT156.<\/p>","protected":false},"featured_media":97615,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[643],"product_cat":[56,469,3107,3105,589,3104,3106,592],"product_tag":[],"class_list":["post-34223","product","type-product","status-publish","has-post-thumbnail","product_brand-william-optics","product_cat-telescoop-accessoires","product_cat-astro-fotografie","product_cat-flatteners","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","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":34228,"url":"https:\/\/staging.telescoop.nl\/en\/william-optics-flat6a-iii-reducer-flattener-adjustable-2-inch\/","url_meta":{"origin":34223,"position":0},"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":34222,"url":"https:\/\/staging.telescoop.nl\/en\/william-optics-flat7a-adjustable-flattener-reducer\/","url_meta":{"origin":34223,"position":1},"title":"William Optics Flat7A Adjustable Flattener Reducer","author":"","date":"17-11-2025","format":false,"excerpt":"William Optics Flat7A comes with adjustable 0.8x reducer, M92 thread, T2 camera thread, Ohara glass, anti-reflection coating and M48 filter thread - for razor-sharp images right to the edge of full-frame sensors.","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-Flat7A-Adjustable-Flattener-Reducer-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-Flat7A-Adjustable-Flattener-Reducer-1.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/11\/William-Optics-Flat7A-Adjustable-Flattener-Reducer-1.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/11\/William-Optics-Flat7A-Adjustable-Flattener-Reducer-1.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":34298,"url":"https:\/\/staging.telescoop.nl\/en\/william-optics-flat68iii-flattener\/","url_meta":{"origin":34223,"position":2},"title":"William Optics Flat68III Flattener","author":"","date":"17-11-2025","format":false,"excerpt":"William Optics Flat68III comes with fully FMC-coated Ohara glass elements, adjustable back focus, T2 camera connector, M92 telescope connector and integrated M48 and M46 filter threads - ideal for full-frame astrophotography.","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-Flat68III-Flattener-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-Flat68III-Flattener-1.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/11\/William-Optics-Flat68III-Flattener-1.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/11\/William-Optics-Flat68III-Flattener-1.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":34224,"url":"https:\/\/staging.telescoop.nl\/en\/william-optics-flat-gt-flattener-gran-turismo-refractor-2-inch\/","url_meta":{"origin":34223,"position":3},"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":[]},{"id":34085,"url":"https:\/\/staging.telescoop.nl\/en\/william-optics-flat61r-61-field-flattener-zenithstar\/","url_meta":{"origin":34223,"position":4},"title":"William Optics Flat61R 61 Field Flattener for ZenithStar","author":"Info telescoop","date":"16-11-2025","format":false,"excerpt":"William Optics Flat61R 61 comes with an adjustable M54 telescope connector, M48 camera connector and an integrated M48 filter thread for perfectly corrected astrophotography with ZenithStar telescopes. \u00a0","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-Flat61R-61-Beeldveldegalisator-voor-ZenithStar-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-Flat61R-61-Beeldveldegalisator-voor-ZenithStar-1.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/11\/William-Optics-Flat61R-61-Beeldveldegalisator-voor-ZenithStar-1.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/11\/William-Optics-Flat61R-61-Beeldveldegalisator-voor-ZenithStar-1.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":34300,"url":"https:\/\/staging.telescoop.nl\/en\/william-optics-flat73a-flattener-voor-zenithstar-73\/","url_meta":{"origin":34223,"position":5},"title":"William Optics Flat73A Flattener for ZenithStar 73","author":"","date":"17-11-2025","format":false,"excerpt":"William Optics Flat73A comes with M63 telescope connector, M48 camera thread, adjustable back focus, scale and gold cap - designed specifically for the ZenithStar 73.","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-Flattener-Flat73A-voor-ZenithStar-73-5.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-Flattener-Flat73A-voor-ZenithStar-73-5.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/11\/William-Optics-Flattener-Flat73A-voor-ZenithStar-73-5.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/11\/William-Optics-Flattener-Flat73A-voor-ZenithStar-73-5.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]}],"_links":{"self":[{"href":"https:\/\/staging.telescoop.nl\/en\/wp-json\/wp\/v2\/product\/34223","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=34223"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/staging.telescoop.nl\/en\/wp-json\/wp\/v2\/media\/97615"}],"wp:attachment":[{"href":"https:\/\/staging.telescoop.nl\/en\/wp-json\/wp\/v2\/media?parent=34223"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/staging.telescoop.nl\/en\/wp-json\/wp\/v2\/product_brand?post=34223"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/staging.telescoop.nl\/en\/wp-json\/wp\/v2\/product_cat?post=34223"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/staging.telescoop.nl\/en\/wp-json\/wp\/v2\/product_tag?post=34223"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}