{"id":25011,"date":"2025-08-07T16:32:57","date_gmt":"2025-08-07T14:32:57","guid":{"rendered":"https:\/\/www.telescoop.nl\/?post_type=product&#038;p=25011"},"modified":"2026-03-03T20:25:23","modified_gmt":"2026-03-03T19:25:23","slug":"omegon-pro-cls-light-pollution-filter-2-inch","status":"publish","type":"product","link":"https:\/\/staging.telescoop.nl\/en\/omegon-pro-cls-lichtvervuilingsfilter-2-inch\/","title":{"rendered":"Omegon Pro CLS Light pollution filter 2 inch"},"content":{"rendered":"<p class=\"wp-block-paragraph\"><strong>Omegon Pro CLS Light pollution filter 2 inch<\/strong> is designed for serious observers who want to get the most out of their telescope under urban or suburban conditions. CLS stands for \u201cCity Light Suppression\u201d - and that is exactly what this filter does: it suppresses the most common light sources from artificial lighting, such as high-pressure sodium lamps and mercury vapor lighting.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Where other broadband filters sometimes still let too much light through, this CLS filter effectively tackles a broad part of the interfering spectrum without blocking essential details of deep-sky objects. Thus, the light from emission nebulae (H-beta and OIII) is retained, but the faint glow of the sky background largely disappears from view. The result is a much more contrasty image of nebulae, star clusters and galaxy structures.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This 2\u2033 version is ideal for larger eyepieces or photographic applications with a standard 2\u2033 filter holder. Thanks to its high-quality multiple coating, the filter is low reflection and color neutral in the transmission areas. The robust mount features fine threads for maximum compatibility.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Advantages<\/strong><br>\u2713 Blocks wide range of interfering city lights<br>\u2713 Allow H-beta and OIII light to pass through unobstructed<br>\u2713 For visual deep-sky observation as well as photography<br>\u2713 2\u2033 mount - suitable for larger eyepieces and filter wheels<br>\u2713 High transmission, low reflection and color fidelity<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Specifications<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Type:<\/strong> CLS (City Light Suppression) broadband filter<\/li>\n\n\n\n<li><strong>Connection:<\/strong> 2 inches (50.8 mm)<\/li>\n\n\n\n<li><strong>Mounting:<\/strong> Aluminum, black anodized with fine threads<\/li>\n\n\n\n<li><strong>Coating:<\/strong> Multiple anti-reflective<\/li>\n\n\n\n<li><strong>Transmission:<\/strong> High for OIII and H-beta<\/li>\n\n\n\n<li><strong>Application:<\/strong> Visual and photographic use under light pollution<\/li>\n\n\n\n<li><strong>Not suitable for:<\/strong> Observation of moon or planets<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Application<\/strong><br>The Omegon Pro CLS Light Pollution Filter 2\u2033 is intended for use with larger eyepieces or camera systems in light-polluted areas. It is ideally suited for observing or photographing emission nebulae such as the Orion Nebula, Veil Nebula or Rosette Nebula, where structures and fine details become more pronounced. A valuable addition for any observer who still wants to observe deep-sky objects from the city!<\/p>","protected":false},"excerpt":{"rendered":"<p data-start=\"312\" data-end=\"738\">\u00a0<\/p>\n<p data-start=\"156\" data-end=\"310\">Omegon Pro CLS Light Pollution Filter 2 inch for bright deep-sky observations under polluted skies, in full-size 2\u2033 format.<\/p>","protected":false},"featured_media":25022,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[126],"product_cat":[56,587,588,3139],"product_tag":[],"class_list":["post-25011","product","type-product","status-publish","has-post-thumbnail","product_brand-omegon","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":90682,"url":"https:\/\/staging.telescoop.nl\/en\/sky-watcher-2-inch-light-pollution-filter\/","url_meta":{"origin":25011,"position":0},"title":"Sky-Watcher 2\u2033 Light Pollution Filter","author":"","date":"30-11-2025","format":false,"excerpt":"Skywatcher CLS 2 wordt geleverd met 2\" CLS lichtvervuilingsfilter in aluminium vatting \u2013 ideaal om contrast van DeepSky-nevels en sterrenstelsels visueel en fotografisch te verhogen onder een verlichte hemel. \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\/Skywatcher-CLS-2-Filters-Light-Polution-2.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/11\/Skywatcher-CLS-2-Filters-Light-Polution-2.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/11\/Skywatcher-CLS-2-Filters-Light-Polution-2.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/11\/Skywatcher-CLS-2-Filters-Light-Polution-2.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":92532,"url":"https:\/\/staging.telescoop.nl\/en\/omegon-pro-cls-filter-2-inch\/","url_meta":{"origin":25011,"position":1},"title":"Omegon Pro CLS filter (2 inch)","author":"","date":"05-01-2026","format":false,"excerpt":"Omegon Pro CLS filter 2'' comes with interference coating, anodized aluminum mount and 2\" thread - ideal for contrast enhancement when observing nebulae in bright environments with small to medium-sized telescopes.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2026\/01\/Omegon-Filters-Pro-CLS-filter-2-2.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2026\/01\/Omegon-Filters-Pro-CLS-filter-2-2.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2026\/01\/Omegon-Filters-Pro-CLS-filter-2-2.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2026\/01\/Omegon-Filters-Pro-CLS-filter-2-2.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":90679,"url":"https:\/\/staging.telescoop.nl\/en\/sky-watcher-1-25-inch-light-pollution-filter\/","url_meta":{"origin":25011,"position":2},"title":"Sky-Watcher 1.25\u2033 Light Pollution Filter","author":"","date":"30-11-2025","format":false,"excerpt":"Skywatcher CLS 1 wordt geleverd met 1,25\" CLS lichtvervuilingsfilter in aluminium vatting \u2013 ideaal om contrast van DeepSky-nevels en sterrenstelsels te verhogen onder lichtvervuilde hemel. \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\/Skywatcher-CLS-1-Filters-Light-Polution-25-2.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/11\/Skywatcher-CLS-1-Filters-Light-Polution-25-2.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/11\/Skywatcher-CLS-1-Filters-Light-Polution-25-2.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/11\/Skywatcher-CLS-1-Filters-Light-Polution-25-2.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":25875,"url":"https:\/\/staging.telescoop.nl\/en\/omegon-2-inch-filteradapter-voor-seestar-s50\/","url_meta":{"origin":25011,"position":3},"title":"Omegon 2-inch Filter Adapter for Seestar S50","author":"","date":"25-08-2025","format":false,"excerpt":"\u00a0 Omegon M62 to M48 Adapter - 2\" Filter Adapter for Seestar S50. Comes with O-ring.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"Omegon 2 inch Filteradapter voor Seestar S50","src":"https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/08\/Omegon-Adapter-M62-M48-2-filter-Seestar-S50-.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/08\/Omegon-Adapter-M62-M48-2-filter-Seestar-S50-.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/08\/Omegon-Adapter-M62-M48-2-filter-Seestar-S50-.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/08\/Omegon-Adapter-M62-M48-2-filter-Seestar-S50-.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/08\/Omegon-Adapter-M62-M48-2-filter-Seestar-S50-.jpg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/08\/Omegon-Adapter-M62-M48-2-filter-Seestar-S50-.jpg?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":7443,"url":"https:\/\/staging.telescoop.nl\/en\/adapter-m62-m48-2-filter-seestar-s50\/","url_meta":{"origin":25011,"position":4},"title":"Omegon Adapter M62 - M48 (2\u2033 filter Seestar S50)","author":"","date":"12-02-2025","format":false,"excerpt":"\u00a0 Omegon Adapter M62 - M48 (2\" filter Seestar S50) comes with sturdy aluminum construction and allows you to use 2\" filters on the ZWO Seestar S50.","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\/02\/Omegon-Adapter-M62-M48-2-filter-Seestar-S50-3.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/02\/Omegon-Adapter-M62-M48-2-filter-Seestar-S50-3.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/02\/Omegon-Adapter-M62-M48-2-filter-Seestar-S50-3.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/02\/Omegon-Adapter-M62-M48-2-filter-Seestar-S50-3.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/02\/Omegon-Adapter-M62-M48-2-filter-Seestar-S50-3.jpg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/02\/Omegon-Adapter-M62-M48-2-filter-Seestar-S50-3.jpg?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":25966,"url":"https:\/\/staging.telescoop.nl\/en\/omegon-m48-naar-2-inch-adapter-2\/","url_meta":{"origin":25011,"position":5},"title":"Omegon M48 to 2 inch Adapter","author":"","date":"25-08-2025","format":false,"excerpt":"\u00a0 Omegon M48 naar 2 inch Adapter, wordt geleverd met M48-schroefdraad en 2\" insteekhuls.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"Omegon M48 naar 2 inch Adapter","src":"https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/08\/Omegon-Neusstuk-M48-op-2-.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/08\/Omegon-Neusstuk-M48-op-2-.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/08\/Omegon-Neusstuk-M48-op-2-.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/08\/Omegon-Neusstuk-M48-op-2-.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/08\/Omegon-Neusstuk-M48-op-2-.jpg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/08\/Omegon-Neusstuk-M48-op-2-.jpg?resize=1400%2C800&ssl=1 4x"},"classes":[]}],"_links":{"self":[{"href":"https:\/\/staging.telescoop.nl\/en\/wp-json\/wp\/v2\/product\/25011","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/staging.telescoop.nl\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/staging.telescoop.nl\/en\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/staging.telescoop.nl\/en\/wp-json\/wp\/v2\/comments?post=25011"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/staging.telescoop.nl\/en\/wp-json\/wp\/v2\/media\/25022"}],"wp:attachment":[{"href":"https:\/\/staging.telescoop.nl\/en\/wp-json\/wp\/v2\/media?parent=25011"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/staging.telescoop.nl\/en\/wp-json\/wp\/v2\/product_brand?post=25011"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/staging.telescoop.nl\/en\/wp-json\/wp\/v2\/product_cat?post=25011"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/staging.telescoop.nl\/en\/wp-json\/wp\/v2\/product_tag?post=25011"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}