{"id":34085,"date":"2025-11-16T16:46:18","date_gmt":"2025-11-16T15:46:18","guid":{"rendered":"https:\/\/www.telescoop.nl\/?post_type=product&p=34085"},"modified":"2026-03-04T16:42:26","modified_gmt":"2026-03-04T15:42:26","slug":"william-optics-flat61r-61-field-flattener-zenithstar","status":"publish","type":"product","link":"https:\/\/staging.telescoop.nl\/en\/william-optics-flat61r-61-field-flattener-zenithstar\/","title":{"rendered":"William Optics Flat61R 61 Field Flattener for ZenithStar"},"content":{"rendered":"

Tight stars to the corner<\/strong><\/h3>\n\n\n\n

The William Optics Flat61R 61 gives your photos a flat field of view, so your stars don't stretch toward the edges. Your image remains tight, neat and even. You see this especially with large sensors and fast telescopes. So you don't have to choose between a wide shot or sharp stars - you get both.<\/p>\n\n\n\n

\n
\"i.<\/figure>\n<\/figure>\n\n\n\n

Clear image without distortion<\/strong><\/h3>\n\n\n\n

The flattener corrects the natural curvature that occurs in any telescope. Without a flattener, corners become soft and details lose their shape. With the Flat61R, your stars remain small and round across the entire frame. Your end result instantly looks more professional, even when you first start astrophotography.<\/p>\n\n\n\n

Solid system with no backlash<\/strong><\/h3>\n\n\n\n

You screw the flattener directly onto the focuser. Everything is tight and stable, so your camera doesn't tilt or shift. This gives you peace of mind during long exposures. You can see in your shot that everything is nicely straight, without distortion from weight or movement.<\/p>\n\n\n\n

\n
\"iii.<\/figure>\n<\/figure>\n\n\n\n

Easy to tune to your camera<\/strong><\/h3>\n\n\n\n

The flattener is adjustable so you set exactly the right distance. You simply rotate it into position and lock it in place. You don't need any additional extensions. This keeps your setup compact and reliable.<\/p>\n\n\n\n

Connecting filters directly<\/strong><\/h3>\n\n\n\n

Do you like to use filters? You just screw M48 filters onto the flattener. You don't have to mount anything complicated. Just screw the filter on, secure the camera, and you can start shooting right away.<\/p>\n\n\n\n

Specifications<\/strong><\/h3>\n\n\n\n

Capacity<\/strong><\/h4>\n\n\n\n
Feature<\/th>Description<\/th><\/tr><\/thead>
Camera side connection<\/td>M48<\/td><\/tr>
Telescope side connection<\/td>M54<\/td><\/tr>
Fine control<\/td>Yes<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

General<\/strong><\/h4>\n\n\n\n
Feature<\/th>Description<\/th><\/tr><\/thead>
Type<\/td>Flatteners, Correctors, Reducers<\/td><\/tr>
Design<\/td>Flattener<\/td><\/tr>
Total weight (kg)<\/td>0,27<\/td><\/tr><\/tbody><\/table><\/figure>","protected":false},"excerpt":{"rendered":"

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<\/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":33858,"url":"https:\/\/staging.telescoop.nl\/en\/william-optics-zenithstar-61-360-apo-ii-ota-2\/","url_meta":{"origin":34085,"position":0},"title":"William Optics ZenithStar 61\/360 APO II OTA","author":"","date":"15-11-2025","format":false,"excerpt":"William Optics AP 61\/360 ZS61 II wordt geleverd met een Flat61R beeldveldegalisator, buisringen, Arca-Swiss & Vixen-style zwaluwstaart, 2\" naar 1,25\" adapter en een zachte draagtas. \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-AP-61-360-ZS61-II-Apochromatische-refractor-ZenithStar-OTA-2.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-AP-61-360-ZS61-II-Apochromatische-refractor-ZenithStar-OTA-2.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/11\/William-Optics-AP-61-360-ZS61-II-Apochromatische-refractor-ZenithStar-OTA-2.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/11\/William-Optics-AP-61-360-ZS61-II-Apochromatische-refractor-ZenithStar-OTA-2.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":33869,"url":"https:\/\/staging.telescoop.nl\/en\/william-optics-zenithstar-61-360-apo-ii-ota\/","url_meta":{"origin":34085,"position":1},"title":"William Optics ZenithStar 61\/360 APO II OTA","author":"","date":"15-11-2025","format":false,"excerpt":"William Optics AP 61\/360 ZS61 II wordt geleverd met een UniGuide 32mm guidescope, een flattener, buisringen, Arca-Swiss & Vixen-style zwaluwstaart, 2\" naar 1,25\" adapter en een zachte draagtas. \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-AP-61-360-ZS61-II-Apochromatische-refractor-ZenithStar-OTA-2-1.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-AP-61-360-ZS61-II-Apochromatische-refractor-ZenithStar-OTA-2-1.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/11\/William-Optics-AP-61-360-ZS61-II-Apochromatische-refractor-ZenithStar-OTA-2-1.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/11\/William-Optics-AP-61-360-ZS61-II-Apochromatische-refractor-ZenithStar-OTA-2-1.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":34118,"url":"https:\/\/staging.telescoop.nl\/en\/william-optics-61-zenithstar-transporttas\/","url_meta":{"origin":34085,"position":2},"title":"William Optics 61 ZenithStar Transport Bag\u00a0","author":"","date":"17-11-2025","format":false,"excerpt":"William Optics 61 comes with sturdy nylon exterior, zipper closure and handles - designed for use with original foam insert from your ZenithStar 61 telescope.","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-61-ZenithStar-Transporttas-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-61-ZenithStar-Transporttas-1.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/11\/William-Optics-61-ZenithStar-Transporttas-1.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/11\/William-Optics-61-ZenithStar-Transporttas-1.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":34124,"url":"https:\/\/staging.telescoop.nl\/en\/william-optics-61-buisringen-en-zoekerschoen-voor-zenithstar\/","url_meta":{"origin":34085,"position":3},"title":"William Optics 61 Tube rings and viewfinder shoe for ZenithStar\u00a0","author":"","date":"17-11-2025","format":false,"excerpt":"William Optics 61 comes as a complete kit with an aluminum tube ring and an integrated viewfinder shoe to equip your ZenithStar 61 telescope. \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-61-Buisringen-en-zoekerschoen-voor-ZenithStar-2.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-61-Buisringen-en-zoekerschoen-voor-ZenithStar-2.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/11\/William-Optics-61-Buisringen-en-zoekerschoen-voor-ZenithStar-2.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/11\/William-Optics-61-Buisringen-en-zoekerschoen-voor-ZenithStar-2.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":34085,"position":4},"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 - 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