{"id":29051,"date":"2025-09-20T20:01:31","date_gmt":"2025-09-20T18:01:31","guid":{"rendered":"https:\/\/www.telescoop.nl\/?post_type=product&#038;p=29051"},"modified":"2026-03-13T11:45:44","modified_gmt":"2026-03-13T10:45:44","slug":"optolong-filters-uhc-filter-2","status":"publish","type":"product","link":"https:\/\/staging.telescoop.nl\/en\/optolong-filters-uhc-filter-2\/","title":{"rendered":"Optolong UHC Filter 2 inch"},"content":{"rendered":"<p class=\"wp-block-paragraph\">Optolong Filters UHC Filter 2\u2033 is a classic contrast-enhancing filter specially designed to make deep-sky objects more visible even under light-polluted conditions. The UHC (Ultra High Contrast) filter blocks interfering emissions from sodium and mercury lamps, while allowing the main emission lines of deep-sky objects - H-beta, OIII and partial H-alpha - to pass virtually unhindered.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This filter darkens the sky background, allowing nebulae, star clusters and galaxy structures to show significantly more contrast. Well-known objects such as the Orion Nebula, Veil Nebula and Lagoon Nebula come into focus much more convincingly as a result. The UHC filter can be used both visually and photographically, and offers excellent value for money for those who want to improve their deep-sky observations.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Thanks to its 2\u2033 mount, the filter is compatible with wide-angle eyepieces and camera adapters, making it particularly suitable for observers and astrophotographers working with wide fields. The filter glass is multi-reflective coated and mounted in a robust aluminum mount for maximum durability.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Application<\/strong><br>This filter is ideal for visual deep-sky observations with telescopes using 2\u2033 eyepieces. Also suitable for astrophotography with DSLRs and color cameras, especially for nebulae and galaxy fields. For planets and galaxies, the effect is limited, as they do not have strong emission lines.<\/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>Type: UHC (Ultra High Contrast) filter<\/li>\n\n\n\n<li>Diameter: 2\u2033 mount<\/li>\n\n\n\n<li>Material: Optical glass with multiple anti-reflection coating<\/li>\n\n\n\n<li>Mount: Aluminum<\/li>\n\n\n\n<li>Application:\n<ul class=\"wp-block-list\">\n<li>\u2713 Contrast enhancement of deep-sky objects<\/li>\n\n\n\n<li>\u2713 Orion Nebula, Veil Nebula, Lagoon Nebula<\/li>\n\n\n\n<li>\u2713 Suitable for visual use and astrophotography<\/li>\n\n\n\n<li>\u2717 Limited effect in planets and galaxies<\/li>\n<\/ul>\n<\/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=\"354\" data-end=\"802\">\u00a0<\/p>\n<p data-start=\"142\" data-end=\"352\">Optolong Filters UHC Filter 2&#8243; wordt geleverd met aluminium vatting en meervoudige coating \u2013 krachtig lichtvervuiling filter voor deep-sky observatie en fotografie met 2&#8243; accessoires.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/article>\n","protected":false},"featured_media":29060,"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-29051","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":29039,"url":"https:\/\/staging.telescoop.nl\/en\/optolong-uhc-filter-1-25-inch\/","url_meta":{"origin":29051,"position":0},"title":"Optolong 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post","link":""},"img":{"alt_text":"Optolong Filters Clip Filter voor Canon EOS Full Frame 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, 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UHC","src":"https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/09\/Optolong-Filters-Clip-Filter-for-Nikon-Full-Frame-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-Nikon-Full-Frame-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-Nikon-Full-Frame-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-Nikon-Full-Frame-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-Nikon-Full-Frame-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-Nikon-Full-Frame-UHC.jpg?resize=1400%2C800&ssl=1 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eyepieces or photography under light pollution.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"Omegon Filters Pro 2 inch UHC filter","src":"https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/08\/Omegon-Filters-Pro-UHC-filter-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-Filters-Pro-UHC-filter-2-.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/08\/Omegon-Filters-Pro-UHC-filter-2-.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/08\/Omegon-Filters-Pro-UHC-filter-2-.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/08\/Omegon-Filters-Pro-UHC-filter-2-.jpg?resize=1050%2C600&ssl=1 3x, 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