{"id":28696,"date":"2025-09-18T21:56:24","date_gmt":"2025-09-18T19:56:24","guid":{"rendered":"https:\/\/www.telescoop.nl\/?post_type=product&#038;p=28696"},"modified":"2026-03-13T11:57:34","modified_gmt":"2026-03-13T10:57:34","slug":"optolong-cls-clip-filter-canon-eos-full-frame","status":"publish","type":"product","link":"https:\/\/staging.telescoop.nl\/en\/optolong-cls-clip-filter-canon-eos-full-frame\/","title":{"rendered":"Optolong CLS Clip Canon EOS Full Frame"},"content":{"rendered":"<p class=\"wp-block-paragraph\">The Optolong CLS Clip Filter Canon EOS Full Frame (City Light Suppression) is designed to make deep-sky objects more visible from light-polluted areas. This filter is inserted directly into the camera body and blocks the main light pollution sources, such as mercury and sodium vapor lamps and the natural skyglow effect. This creates a darker sky background, making nebulae, galaxies and star clusters stand out more clearly.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The CLS filter simultaneously allows the emission lines of nebulae to pass through - including OIII (496\/500 nm), H-beta (486 nm), NII (654\/658 nm), H-alpha (656 nm) and SII (672 nm). This increases contrast and makes more details visible in emission nebulae, planetary nebulae and supernova remnants. Thanks to its wider pass range, the CLS filter is particularly suitable for lightly to moderately polluted skies and works well with unmodified DSLRs and CCD color cameras.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Compatibility<\/strong><br>This clip filter is suitable for Canon EOS full-frame models only <strong>EOS 6D, EOS 5D, EOS 5D II and EOS 5D III<\/strong>. Newer models such as the EOS 6D II and EOS 5D IV are not compatible: in those cameras, the filter blocks the movement of the mirror and causes interference.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Application<\/strong><br>The Optolong CLS Clip Filter Canon EOS Full Frame is ideal for:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Photography of deep-sky objects under urban skies<\/li>\n\n\n\n<li>Observing and photographing emission nebulae and supernova remnants<\/li>\n\n\n\n<li>Use with Canon EOS full-frame DSLRs (compatible models)<\/li>\n\n\n\n<li>Photography with unmodified DSLRs and CCD cameras<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Specifications<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Suitable for: Canon EOS full-frame (6D, 5D, 5D II, 5D III)<\/li>\n\n\n\n<li>Material: shot glass<\/li>\n\n\n\n<li>Mounting: clip-in filter<\/li>\n\n\n\n<li>Type: broadband filter (CLS)<\/li>\n\n\n\n<li>Optics coating: multi-coated<\/li>\n\n\n\n<li>Transmission: approx. 80%<\/li>\n\n\n\n<li>Surface accuracy: \u03bb\/4<\/li>\n\n\n\n<li>Application: photographic and visual<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Note<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Not suitable for Canon EOS 6D II and 5D IV<\/li>\n\n\n\n<li>This filter should never be used as the sole sunscreen<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<article class=\"w-full text-token-text-primary focus-visible:outline-2 focus-visible:outline-offset-[-4px]\" dir=\"auto\" data-testid=\"conversation-turn-35\" data-scroll-anchor=\"true\">\n<div class=\"text-base my-auto mx-auto py-[18px] px-6\">\n<div class=\"mx-auto flex flex-1 text-base gap-4 md:gap-5 lg:gap-6 md:max-w-3xl lg:max-w-[40rem] xl:max-w-[48rem]\">\n<div class=\"group\/conversation-turn relative flex w-full min-w-0 flex-col agent-turn @xs\/thread:px-0 @sm\/thread:px-1.5 @md\/thread:px-4\">\n<div class=\"flex-col gap-1 md:gap-3\">\n<div class=\"flex max-w-full flex-col flex-grow\">\n<div class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 whitespace-normal break-words text-start [.text-message+&amp;]:mt-5\" dir=\"auto\" data-message-author-role=\"assistant\" data-message-id=\"28a009d2-3136-4224-8ee5-30c9a1a2ece5\" data-message-model-slug=\"gpt-4o\">\n<div class=\"flex w-full flex-col gap-1 empty:hidden first:pt-[3px]\">\n<div class=\"markdown prose w-full break-words dark:prose-invert dark\">\n<p data-start=\"379\" data-end=\"870\">\u00a0<\/p>\n<p data-start=\"183\" data-end=\"377\">Optolong CLS Clip Filter Canon EOS Full Frame wordt geleverd met breedbandcoating voor contrastrijke deep-sky fotografie en visuele waarnemingen onder lichtvervuiling.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/article>\n","protected":false},"featured_media":28704,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[1548],"product_cat":[56,587,588,3139],"product_tag":[],"class_list":["post-28696","product","type-product","status-publish","has-post-thumbnail","product_brand-optolong","product_cat-telescoop-accessoires","product_cat-camera-accessoires","product_cat-filters","product_cat-lichtvervuilingsfilters-light-pollution","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":28687,"url":"https:\/\/staging.telescoop.nl\/en\/optolong-cls-ccd-clip-filter-canon-eos-aps-c\/","url_meta":{"origin":28696,"position":0},"title":"Optolong CLS-CCD Clip Filter Canon EOS APS-C","author":"","date":"18-09-2025","format":false,"excerpt":"\u00a0 Optolong CLS-CCD Clip Filter Canon EOS APS-C comes with broadband coating and additional IR blocking for high-contrast deep-sky photography with modified cameras.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"Optolong CLS-CCD Clip Filter Canon EOS APS-C","src":"https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/09\/Optolong-Filters-Clipfilter-voor-Canon-EOS-APS-C-CLS-CCD.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/09\/Optolong-Filters-Clipfilter-voor-Canon-EOS-APS-C-CLS-CCD.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/09\/Optolong-Filters-Clipfilter-voor-Canon-EOS-APS-C-CLS-CCD.jpg?resize=525%2C300&ssl=1 1.5x, 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post","link":""},"img":{"alt_text":"Optolong CLS Clip Filter Canon EOS APS-C","src":"https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/09\/Optolong-Filters-Clip-Filter-for-Canon-EOS-APS-C-CLS.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/09\/Optolong-Filters-Clip-Filter-for-Canon-EOS-APS-C-CLS.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/09\/Optolong-Filters-Clip-Filter-for-Canon-EOS-APS-C-CLS.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/09\/Optolong-Filters-Clip-Filter-for-Canon-EOS-APS-C-CLS.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/09\/Optolong-Filters-Clip-Filter-for-Canon-EOS-APS-C-CLS.jpg?resize=1050%2C600&ssl=1 3x, 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FF","src":"https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/09\/Optolong-Filters-L-Pro-Clip-Canon-EOS-FF-1.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/09\/Optolong-Filters-L-Pro-Clip-Canon-EOS-FF-1.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/09\/Optolong-Filters-L-Pro-Clip-Canon-EOS-FF-1.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/09\/Optolong-Filters-L-Pro-Clip-Canon-EOS-FF-1.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/09\/Optolong-Filters-L-Pro-Clip-Canon-EOS-FF-1.jpg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/09\/Optolong-Filters-L-Pro-Clip-Canon-EOS-FF-1.jpg?resize=1400%2C800&ssl=1 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UHC","src":"https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/09\/Optolong-Filters-Clip-Filter-for-Canon-EOS-FF-UHC.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/09\/Optolong-Filters-Clip-Filter-for-Canon-EOS-FF-UHC.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/09\/Optolong-Filters-Clip-Filter-for-Canon-EOS-FF-UHC.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/09\/Optolong-Filters-Clip-Filter-for-Canon-EOS-FF-UHC.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/09\/Optolong-Filters-Clip-Filter-for-Canon-EOS-FF-UHC.jpg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/09\/Optolong-Filters-Clip-Filter-for-Canon-EOS-FF-UHC.jpg?resize=1400%2C800&ssl=1 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