{"id":90679,"date":"2025-11-30T16:29:07","date_gmt":"2025-11-30T15:29:07","guid":{"rendered":"https:\/\/www.telescoop.nl\/?post_type=product&#038;p=90679"},"modified":"2026-10-13T11:15:05","modified_gmt":"2026-10-13T09:15:05","slug":"sky-watcher-1-25-inch-light-pollution-filter","status":"publish","type":"product","link":"https:\/\/www.telescoop.nl\/en\/sky-watcher-1-25-inch-light-pollution-filter\/","title":{"rendered":"Sky-Watcher 1.25 inch Light Pollution Filter"},"content":{"rendered":"<h2 class=\"wp-block-heading has-text-align-center\"><strong>Sky-Watcher 1.25 inch Light Pollution Filter: deep-sky from built-up areas<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Artificial city light makes the night sky bright and gray. This broadband filter suppresses the typical wavelengths of street lighting, while allowing light from stars and nebulae to pass through. The background becomes darker, contrast increases, and faint deep-sky objects become visible again.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/www.telescoop.nl\/wp-content\/uploads\/2025\/11\/Skywatcher-CLS-1-Filters-Light-Polution-25-2.jpg\" alt=\"Skywatcher CLS 1 light pollution filter 1.25 inches in black aluminum mount side view.\" title=\"\"><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/www.telescoop.nl\/wp-content\/uploads\/2025\/11\/Skywatcher-CLS-1-Filters-Light-Polution-25-1.jpg\" alt=\"Skywatcher CLS 1 transmission curve graph with pass-through bands and suppressed light pollution lines.\" title=\"\"><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Particularly from a garden or balcony in the Netherlands and Belgium, where light pollution is the norm, this filter makes the difference between a grey haze and recognizable nebula structure. The effect is visible both to the naked eye and in photographs.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Features<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n\n<li>Suppresses street lighting wavelengths<\/li>\n\n\n<li>Increases the contrast of nebulae and galaxies<\/li>\n\n\n<li>Aluminum vatting with standard filter thread<\/li>\n\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Compatibility<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Screws into the filter thread of 1.25 inch eyepieces and accessories. Usable for visual and photographic purposes.<\/p>\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>Broadband filter (light pollution)<\/td><\/tr><tr><td><strong>Mount<\/strong><\/td><td>1.25 inches<\/td><\/tr><tr><td><strong>Steeping material<\/strong><\/td><td>Aluminum<\/td><\/tr><tr><td><strong>Use<\/strong><\/td><td>Visual and photographic<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">The disassembly of <a href=\"https:\/\/www.telescoop.nl\/en\/brands\/sky-watcher\/\">Sky-Watcher<\/a> is a base that will last you for years. Unsure which mount is best for your telescope and your goals? Contact us, we'd be happy to help you decide.<\/p>","protected":false},"excerpt":{"rendered":"<p>Broadband light pollution filter in 1.25 inch: suppresses the light from street lighting and keeps stars and nebulae bright. Usable visually and photographically.<\/p>","protected":false},"featured_media":98132,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[542],"product_cat":[3139,469,588,56],"product_tag":[],"class_list":["post-90679","product","type-product","status-publish","has-post-thumbnail","product_brand-sky-watcher","product_cat-lichtvervuilingsfilters-light-pollution","product_cat-astro-fotografie","product_cat-filters","product_cat-telescoop-accessoires","first","instock","taxable","shipping-taxable","purchasable","product-type-simple"],"bundled_by":[],"bundle_stock_status":"instock","bundle_stock_quantity":4,"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:\/\/www.telescoop.nl\/en\/sky-watcher-2-inch-light-pollution-filter\/","url_meta":{"origin":90679,"position":0},"title":"Sky-Watcher 2 inch Light Pollution Filter","author":"","date":"30-11-2025","format":false,"excerpt":"Broadband light pollution filter in 2 inch: suppresses streetlights for a darker background and more contrast, also in the light path of correctors and 2 inch eyepieces.","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\/Skywatcher-CLS-2-Filters-Light-Polution-1.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":113385,"url":"https:\/\/www.telescoop.nl\/en\/optolong-h-beta-nevelfilter-12-nm-125-inch-voor-de-paardenkopnevel\/","url_meta":{"origin":90679,"position":1},"title":"Optolong H-Beta new filter 12 nm 1.25 inch for the Horsehead Nebula","author":"Info telescoop","date":"09-10-2026","format":false,"excerpt":"12 nm H-beta filter in 1.25 inch to better see visually faint nebulae such as the Horsehead Nebula and the California Nebula.","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\/87863_1.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/10\/87863_1.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/10\/87863_1.jpg?resize=525%2C300&ssl=1 1.5x"},"classes":[]},{"id":107904,"url":"https:\/\/www.telescoop.nl\/en\/telescoop-set-voor-sterrenstelsels-en-nevels-deep-sky-pakket\/","url_meta":{"origin":90679,"position":2},"title":"Telescope set for galaxies and nebulae \u2013 Deep Sky package","author":"Info telescoop","date":"04-05-2026","format":false,"excerpt":"Unleash the full potential of deep space and distant galaxies. This set around the powerful 200\/1200 Dobson telescope is optimized for deep-sky observations. By combining the large light output of the 8-inch mirror with two ultra-hot narrowband filters, you unveil details in gas clouds that remain invisible without these tools! Light Cannon: 200mm\u2026","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"Omegon Dobson Teleskop Advanced X N 203\/1000","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/07\/Omegon-Dobson-telescoop-Advanced-X-N-203-1200.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/07\/Omegon-Dobson-telescoop-Advanced-X-N-203-1200.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/07\/Omegon-Dobson-telescoop-Advanced-X-N-203-1200.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/07\/Omegon-Dobson-telescoop-Advanced-X-N-203-1200.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/07\/Omegon-Dobson-telescoop-Advanced-X-N-203-1200.jpg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/07\/Omegon-Dobson-telescoop-Advanced-X-N-203-1200.jpg?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":90685,"url":"https:\/\/www.telescoop.nl\/en\/sky-watcher-1-25-inch-uhc-filter\/","url_meta":{"origin":90679,"position":3},"title":"Sky-Watcher 1.25 inch UHC Filter","author":"","date":"30-11-2025","format":false,"excerpt":"Ultra High Contrast filter in 1.25 inch: smaller passband than a broadband filter, for clearly more contrast on emission nebulae such as Orion, Lagoon, and Swan.","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\/Skywatcher-UHC-1-Filters-25-1.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":113386,"url":"https:\/\/www.telescoop.nl\/en\/optolong-h-beta-nevelfilter-12-nm-2-inch-voor-visueel-waarnemen-van-nevels\/","url_meta":{"origin":90679,"position":4},"title":"Optolong H-Beta nanofilter 12 nm 2 inch for visual observation of fog","author":"Info telescoop","date":"09-10-2026","format":false,"excerpt":"12 nm H-beta filter in 2 inches, for visual observation of clouds that mainly radiate in the H-beta line of hydrogen.","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\/87863_1.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/10\/87863_1.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/10\/87863_1.jpg?resize=525%2C300&ssl=1 1.5x"},"classes":[]},{"id":24999,"url":"https:\/\/www.telescoop.nl\/en\/omegon-nevel-en-stadlichtfilter-125\/","url_meta":{"origin":90679,"position":5},"title":"Omegon Nebula and City Light Filter 1.25 inch","author":"","date":"07-08-2025","format":false,"excerpt":"Broadband filter that suppresses street lighting and increases the contrast of nebulae. The most cost-effective step forward for observers under city skies.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"Omegon Nevel- en Stadlichtfilter 1,25\"","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/08\/Omegon-Filters-Nevelfilter-Pollutiefilter-1-25-.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/08\/Omegon-Filters-Nevelfilter-Pollutiefilter-1-25-.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/08\/Omegon-Filters-Nevelfilter-Pollutiefilter-1-25-.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/08\/Omegon-Filters-Nevelfilter-Pollutiefilter-1-25-.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/08\/Omegon-Filters-Nevelfilter-Pollutiefilter-1-25-.jpg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/08\/Omegon-Filters-Nevelfilter-Pollutiefilter-1-25-.jpg?resize=1400%2C800&ssl=1 4x"},"classes":[]}],"_links":{"self":[{"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product\/90679","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=90679"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/media\/98132"}],"wp:attachment":[{"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/media?parent=90679"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product_brand?post=90679"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product_cat?post=90679"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product_tag?post=90679"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}