{"id":113191,"date":"2026-10-09T16:54:15","date_gmt":"2026-10-09T14:54:15","guid":{"rendered":"https:\/\/www.telescoop.nl\/?post_type=product&p=113191"},"modified":"2026-10-09T20:34:38","modified_gmt":"2026-10-09T18:34:38","slug":"flat-cap-fc90-for-flat-frames-in-astrophotography-daystar","status":"publish","type":"product","link":"https:\/\/www.telescoop.nl\/en\/flat-cap-fc90-voor-flatframes-bij-astrofotografie-daystar\/","title":{"rendered":"FC90 flat cap for flat-frame cameras for astrophotography | DayStar"},"content":{"rendered":"

Do you see dark bands of fabric or dark corners in your astro photos after stacking? You can solve this problem with flat frames, and the DayStar flat cap FC90 is designed for that purpose. Flats are shots of a uniformly illuminated surface, taken with the same camera, focus, and filters as your real shots. When editing, this removes dust, spots, and vignetting.<\/p>\n\n\n\n

The cap comes for the opening of your telescope. Measure the outer diameter of your tube or dew cap and compare it with the specified size of this FC90. If this size does not fit, then compare with the flat cap in size FC100<\/a>.<\/p>\n\n\n\n

Do not change anything in the focus, camera angle or filters after your session before you take the flats. This way, dust and vignetting will be exactly where you want them in your shots. Therefore, set the focus properly at the beginning of the evening, for example with a Bahtinov mask from our Focus masks for focusing<\/a>.<\/p>","protected":false},"excerpt":{"rendered":"

DayStar flat cap in size FC90 for the front of your telescope, to create flat frames that remove dust and vignetting from your footage.<\/p>","protected":false},"featured_media":113188,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[3282],"product_cat":[3104,56],"product_tag":[],"class_list":["post-113191","product","type-product","status-publish","has-post-thumbnail","product_brand-daystar","product_cat-overige-astrofotografie-accessoires","product_cat-telescoop-accessoires","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":113193,"url":"https:\/\/www.telescoop.nl\/en\/flat-cap-fc104-voor-flatframes-bij-astrofotografie-daystar\/","url_meta":{"origin":113191,"position":0},"title":"FC104 flat cap for flat-frame cameras for astrophotography | DayStar","author":"Info telescoop","date":"09-10-2026","format":false,"excerpt":"DayStar cap in size FC104 for the front of your telescope, to create uniform flat frames per filter for your stacks.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/10\/87182_1.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/10\/87182_1.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/10\/87182_1.jpg?resize=525%2C300&ssl=1 1.5x"},"classes":[]},{"id":113200,"url":"https:\/\/www.telescoop.nl\/en\/flat-cap-fc160-voor-flatframes-bij-astrofotografie-daystar\/","url_meta":{"origin":113191,"position":1},"title":"FC160 flat cap for flat frames in astrophotography | DayStar","author":"Info telescoop","date":"09-10-2026","format":false,"excerpt":"DayStar flat cap FC160 for creating flat frames, so that dust and vignetting do not end up in your final astro photo.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/10\/87182_1.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/10\/87182_1.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/10\/87182_1.jpg?resize=525%2C300&ssl=1 1.5x"},"classes":[]},{"id":113198,"url":"https:\/\/www.telescoop.nl\/en\/flat-cap-fc150-voor-flatframes-bij-astrofotografie-daystar\/","url_meta":{"origin":113191,"position":2},"title":"FC150 flat cap for flat-frame cameras for astrophotography | DayStar","author":"Info telescoop","date":"09-10-2026","format":false,"excerpt":"DayStar flat cap FC150 for opening your telescope, to remove dust spots and dark edges from your images with flat frames.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/10\/87182_1.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/10\/87182_1.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/10\/87182_1.jpg?resize=525%2C300&ssl=1 1.5x"},"classes":[]},{"id":113192,"url":"https:\/\/www.telescoop.nl\/en\/flat-cap-fc100-voor-flatframes-bij-astrofotografie-daystar\/","url_meta":{"origin":113191,"position":3},"title":"FC100 flat cap for flat-frame cameras for astrophotography | DayStar","author":"Info telescoop","date":"09-10-2026","format":false,"excerpt":"FC100 size flat cap for opening your telescope. You can use it to create flat frames that allow you to remove dust shadows and dark edges.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/10\/87182_1.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/10\/87182_1.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/10\/87182_1.jpg?resize=525%2C300&ssl=1 1.5x"},"classes":[]},{"id":113194,"url":"https:\/\/www.telescoop.nl\/en\/flat-cap-fc110-voor-flatframes-bij-astrofotografie-daystar\/","url_meta":{"origin":113191,"position":4},"title":"FC110 flat cap for flat frames in astrophotography | DayStar","author":"Info telescoop","date":"09-10-2026","format":false,"excerpt":"DayStar flat cap FC110 for opening your telescope. With this you can create flat frames to correct vignetting and dust spots.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/10\/87182_1.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/10\/87182_1.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/10\/87182_1.jpg?resize=525%2C300&ssl=1 1.5x"},"classes":[]},{"id":113204,"url":"https:\/\/www.telescoop.nl\/en\/flat-cap-fc210-voor-flatframes-bij-astrofotografie-daystar\/","url_meta":{"origin":113191,"position":5},"title":"FC210 flat cap for flat-frame cameras for astrophotography | DayStar","author":"Info telescoop","date":"09-10-2026","format":false,"excerpt":"The DayStar cap fits FC210 to create flat frames for your astro photos, so you can correct dust and vignetting in your software.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/10\/87182_1.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/10\/87182_1.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/10\/87182_1.jpg?resize=525%2C300&ssl=1 1.5x"},"classes":[]}],"_links":{"self":[{"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product\/113191","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=113191"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/media\/113188"}],"wp:attachment":[{"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/media?parent=113191"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product_brand?post=113191"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product_cat?post=113191"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product_tag?post=113191"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}