{"id":34085,"date":"2025-11-16T16:46:18","date_gmt":"2025-11-16T15:46:18","guid":{"rendered":"https:\/\/www.telescoop.nl\/?post_type=product&#038;p=34085"},"modified":"2026-07-20T14:20:42","modified_gmt":"2026-07-20T12:20:42","slug":"william-optics-flat61r-61-field-flattener-zenithstar","status":"publish","type":"product","link":"https:\/\/www.telescoop.nl\/en\/william-optics-flat61r-61-field-flattener-zenithstar\/","title":{"rendered":"William Optics Flat61R 61 Field Flattener for ZenithStar"},"content":{"rendered":"<h2 class=\"wp-block-heading has-text-align-center\"><strong>William Optics Flat61R 61 Field Flattener voor ZenithStar: maakt van je 61 mm apo een astrograaf<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">De William Optics Flat61R is de beeldveldvlakker voor de 61 mm apo's van William Optics. 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.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">De telescoopzijde is een verstelbare M54-aansluiting: je draait de flattener op de focuser en stelt de afstand tot de optiek in tot de hoeksterren strak zijn. De camerazijde is M48, met een geintegreerde M48-filterdraad zodat je filter direct in de trein zit.<\/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-Flat61R-61-Beeldveldegalisator-voor-ZenithStar-1.jpg\" alt=\"William Optics Flat61R flattener voor ZenithStar 61\" title=\"\"><\/figure><figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/www.telescoop.nl\/wp-content\/uploads\/2025\/11\/William-Optics-Flat61R-61-Beeldveldegalisator-voor-ZenithStar-2.jpg\" alt=\"William Optics Flat61R flattener voor ZenithStar 61\" title=\"\"><\/figure><figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/www.telescoop.nl\/wp-content\/uploads\/2025\/11\/William-Optics-Flat61R-61-Beeldveldegalisator-voor-ZenithStar-4.jpg\" alt=\"William Optics Flat61R flattener voor ZenithStar 61\" title=\"\"><\/figure><figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/www.telescoop.nl\/wp-content\/uploads\/2025\/11\/William-Optics-Flat61R-61-Beeldveldegalisator-voor-ZenithStar-3.jpg\" alt=\"William Optics Flat61R flattener voor ZenithStar 61\" 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-Flat61R-61-Beeldveldegalisator-voor-ZenithStar-2.jpg\" alt=\"William Optics Flat61R flattener voor ZenithStar 61\" 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\">Which telescopes<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Gemaakt voor de William Optics ZenithStar 61-serie en de GuideStar 61. In combinatie met de GuideStar 61 verandert je guidescope in een complete reisastrograaf.<\/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-Flat61R-61-Beeldveldegalisator-voor-ZenithStar-4.jpg\" alt=\"William Optics Flat61R flattener voor ZenithStar 61\" 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\">Camerakoppeling<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Aan de M48-zijde sluit je je camera aan met een William Optics M48-adapter of 48 mm T-ring voor jouw bajonet. Zo staat de sensor op de afstand waarvoor de flattener is gerekend.<\/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 Flat61R met de M48-adapter voor jouw cameramerk; die staan als aparte producten in het assortiment.<\/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 Bezitters van een ZenithStar 61 of GuideStar 61 die willen fotograferen<\/li><li>\u2713 Reisastrofotografen met kleine tot APS-C-sensoren<\/li><li>\u2717 Bezitters van andere buisdiameters: elke WO-apo heeft zijn eigen berekende flattener<\/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>Field of view flattener<\/td><\/tr><tr><td><strong>Suitable for<\/strong><\/td><td>William Optics ZenithStar 61 \/ GuideStar 61<\/td><\/tr><tr><td><strong>Telescope silk<\/strong><\/td><td>M54, verstelbaar<\/td><\/tr><tr><td><strong>Camera side<\/strong><\/td><td>M48<\/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 Flat61R flattener for the ZenithStar 61 and GuideStar 61: adjustable M54 connection, M48 camera side, and integrated M48 filter thread. Round stars all the way to the corners.<\/p>","protected":false},"featured_media":97510,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[643],"product_cat":[469,3107,3105,3104,592],"product_tag":[],"class_list":["post-34085","product","type-product","status-publish","has-post-thumbnail","product_brand-william-optics","product_cat-astro-fotografie","product_cat-flatteners","product_cat-optische-accessoires","product_cat-overige-astrofotografie-accessoires","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":34300,"url":"https:\/\/www.telescoop.nl\/en\/william-optics-flat73a-flattener-voor-zenithstar-73\/","url_meta":{"origin":34085,"position":0},"title":"William Optics Flat73A Flattener for ZenithStar 73","author":"","date":"17-11-2025","format":false,"excerpt":"William Optics Flat73A flattener for ZenithStar 73: M63 telescope side, M48 camera side, adjustable back focus with scale and direct M48 filter thread.","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-Flattener-Flat73A-voor-ZenithStar-73-5.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":34298,"url":"https:\/\/www.telescoop.nl\/en\/william-optics-flat68iii-flattener\/","url_meta":{"origin":34085,"position":1},"title":"William Optics Flat68III Flattener","author":"","date":"17-11-2025","format":false,"excerpt":"William Optics Flat68III flattener: Ohara-glas met volledige FMC-coating, verstelbare backfocus met borgring, M92-telescoopzijde, T2-camerazijde en geintegreerde M48-filterdraad.","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-Flat68III-Flattener-1.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":33858,"url":"https:\/\/www.telescoop.nl\/en\/william-optics-zenithstar-61-360-apo-ii-ota-2\/","url_meta":{"origin":34085,"position":2},"title":"William Optics ZenithStar 61\/360 APO II OTA","author":"Info telescoop","date":"15-11-2025","format":false,"excerpt":"William Optics ZenithStar 61 II, scope OTA: compact FPL-53 apochromat 61\/360 f\/5.9 for astrophotography and visual use. Supplied with tube rings, Arca\/Vixen dovetail, and 2 to 1.25 inch adapter.","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-AP-61-360-ZS61-II-Apochromatische-refractor-ZenithStar-OTA-1.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":33869,"url":"https:\/\/www.telescoop.nl\/en\/william-optics-zenithstar-61-360-apo-ii-ota\/","url_meta":{"origin":34085,"position":3},"title":"William Optics ZenithStar 61\/360 APO II OTA with Flattener &amp; Guidescope","author":"","date":"15-11-2025","format":false,"excerpt":"William Optics ZenithStar 61 II set: FPL-53 Apochromatic 61\/360 f\/5.9 complete with field flattener, UniGuide 32mm guidescope, tube rings, dovetail, and carrying case. 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Includes Vixen rail and carrying case.","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-Guidescope-Guide-Star-Apo-61-4.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]}],"_links":{"self":[{"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product\/34085","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=34085"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/media\/97510"}],"wp:attachment":[{"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/media?parent=34085"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product_brand?post=34085"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product_cat?post=34085"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product_tag?post=34085"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}