{"id":34222,"date":"2025-11-17T15:31:31","date_gmt":"2025-11-17T14:31:31","guid":{"rendered":"https:\/\/www.telescoop.nl\/?post_type=product&#038;p=34222"},"modified":"2026-07-20T14:20:43","modified_gmt":"2026-07-20T12:20:43","slug":"william-optics-flat7a-adjustable-flattener-reducer","status":"publish","type":"product","link":"https:\/\/www.telescoop.nl\/en\/william-optics-flat7a-adjustable-flattener-reducer\/","title":{"rendered":"William Optics Flat7A Adjustable Flattener Reducer"},"content":{"rendered":"<h2 class=\"wp-block-heading has-text-align-center\"><strong>William Optics Flat7A Adjustable Flattener Reducer: vlak veld en 0,8x snelheidswinst in een<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">De William Optics Flat7A combineert twee functies: hij vlakt het beeldveld en verkort de brandpuntsafstand met factor 0,8x. Elke refractor levert van nature een licht gebogen beeldvlak; een vlakke camerasensor snijdt daar doorheen, waardoor sterren in de hoeken uitrekken tot streepjes. Een flattener rekent die kromming weg, zodat sterren tot in de hoeken klein en rond blijven. De reducer maakt je telescoop bovendien een stop sneller: kortere totale belichtingstijd voor hetzelfde resultaat.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">De optiek is een triplet van Japans Ohara-glas met volledige FMC-coating: maximale scherpte en contrast, minimale reflecties. Gemaakt voor refractors van f\/5 tot f\/7 en berekend tot en met grote DSLR-sensoren.<\/p>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-3 is-cropped wp-block-gallery-1 is-layout-flex wp-block-gallery-is-layout-flex\"><figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/www.telescoop.nl\/wp-content\/uploads\/2025\/11\/William-Optics-Flat7A-Adjustable-Flattener-Reducer-1.jpg\" alt=\"William Optics Flat7A verstelbare flattener reducer\" title=\"\"><\/figure><figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/www.telescoop.nl\/wp-content\/uploads\/2025\/11\/William-Optics-Flat7A-Adjustable-Flattener-Reducer-2.jpg\" alt=\"William Optics Flat7A verstelbare flattener reducer\" title=\"\"><\/figure><figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/www.telescoop.nl\/wp-content\/uploads\/2025\/11\/William-Optics-Flat7A-Adjustable-Flattener-Reducer-3.jpg\" alt=\"William Optics Flat7A verstelbare flattener reducer\" title=\"\"><\/figure><figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/www.telescoop.nl\/wp-content\/uploads\/2025\/11\/William-Optics-Flat7A-Adjustable-Flattener-Reducer-4.jpg\" alt=\"William Optics Flat7A verstelbare flattener reducer\" title=\"\"><\/figure><figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/www.telescoop.nl\/wp-content\/uploads\/2025\/11\/William-Optics-Flat7A-Adjustable-Flattener-Reducer-5.jpg\" alt=\"William Optics Flat7A verstelbare flattener reducer\" title=\"\"><\/figure><figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/www.telescoop.nl\/wp-content\/uploads\/2025\/11\/William-Optics-Flat7A-Adjustable-Flattener-Reducer-6.jpg\" alt=\"William Optics Flat7A verstelbare flattener reducer\" title=\"\"><\/figure><figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/www.telescoop.nl\/wp-content\/uploads\/2025\/11\/William-Optics-Flat7A-Adjustable-Flattener-Reducer-7.jpg\" alt=\"William Optics Flat7A verstelbare flattener reducer\" title=\"\"><\/figure><figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/www.telescoop.nl\/wp-content\/uploads\/2025\/11\/William-Optics-Flat7A-Adjustable-Flattener-Reducer-8.jpg\" alt=\"William Optics Flat7A verstelbare flattener reducer\" title=\"\"><\/figure><\/figure>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-8d39b2df wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:38%\">\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/www.telescoop.nl\/wp-content\/uploads\/2025\/11\/William-Optics-Flat7A-Adjustable-Flattener-Reducer-2.jpg\" alt=\"William Optics Flat7A verstelbare flattener reducer\" title=\"\"><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:62%\">\n<h4 class=\"wp-block-heading\">Verstelbaar, zonder losse verlengstukken<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Je monteert de Flat7A rechtstreeks op de M92-schroefdraad van je focuser en stelt de afstand tot de optiek af met de verstelbare borgring. Geen gepuzzel met afstandsringen: draaien, borgen, klaar.<\/p>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-8d39b2df wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:38%\">\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/www.telescoop.nl\/wp-content\/uploads\/2025\/11\/William-Optics-Flat7A-Adjustable-Flattener-Reducer-3.jpg\" alt=\"William Optics Flat7A verstelbare flattener reducer\" title=\"\"><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:62%\">\n<h4 class=\"wp-block-heading\">De cameratrein<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">De camerazijde is T2, voor de T2-ring van jouw cameramerk. De 45 mm afstandsadapter brengt de sensor op de berekende afstand, en de geintegreerde M48-filterdraad neemt je filter op in de trein.<\/p>\n<\/div>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Featured accessories<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Combineer de Flat7A met de 45 mm Flat68II\/Flat7A-adapter en de T2-ring van je cameramerk voor de complete, kantelvrije trein.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">For whom yes and for whom no<\/h3>\n\n\n\n<ul class=\"wp-block-list\"><li>\u2713 Astrofotografen met een f\/5 tot f\/7 refractor met M92-focuser<\/li><li>\u2713 Wie snelheidswinst en veldcorrectie in een element wil<\/li><li>\u2717 Bezitters van focusers zonder M92-aansluiting: controleer eerst je draadmaat<\/li><\/ul>\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>Type<\/strong><\/td><td>Verstelbare flattener-reducer<\/td><\/tr><tr><td><strong>Reduction factor<\/strong><\/td><td>0,8x<\/td><\/tr><tr><td><strong>Optics<\/strong><\/td><td>Triplet, Ohara-glas, volledige FMC-coating<\/td><\/tr><tr><td><strong>Suitable for<\/strong><\/td><td>Refractors f\/5 tot f\/7<\/td><\/tr><tr><td><strong>Telescope silk<\/strong><\/td><td>M92<\/td><\/tr><tr><td><strong>Camera side<\/strong><\/td><td>T2<\/td><\/tr><tr><td><strong>Filter thread<\/strong><\/td><td>M48, geintegreerd<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">You can find more accessories for this merk at the <a href=\"\/en\/brands\/william-optics\/\">William Optics merk Page<\/a>.<\/p>","protected":false},"excerpt":{"rendered":"<p>William Optics Flat7A verstelbare flattener-reducer 0,8x: Ohara-triplet met FMC-coating, M92-telescoopzijde, T2-camerazijde en M48-filterdraad. Voor refractors van f\/5 tot f\/7.<\/p>","protected":false},"featured_media":97607,"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-34222","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":[33973],"acf":[],"jetpack_sharing_enabled":true,"jetpack-related-posts":[{"id":34228,"url":"https:\/\/www.telescoop.nl\/en\/william-optics-flat6a-iii-reducer-flattener-adjustable-2-inch\/","url_meta":{"origin":34222,"position":0},"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. 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