{"id":14831,"date":"2025-06-23T20:33:27","date_gmt":"2025-06-23T18:33:27","guid":{"rendered":"https:\/\/www.telescoop.nl\/?post_type=product&#038;p=14831"},"modified":"2026-03-20T13:16:52","modified_gmt":"2026-03-20T12:16:52","slug":"zwo-filters-filter-set-h-alpha-sii-oiii-125","status":"publish","type":"product","link":"https:\/\/www.telescoop.nl\/en\/zwo-filters-filter-set-h-alpha-sii-oiii-125\/","title":{"rendered":"ZWO Filters Filter-Set H-alpha, SII, OIII 1.25\u2033"},"content":{"rendered":"<p class=\"wp-block-paragraph\"><strong>ZWO Filter-Set H-alpha, SII, OIII 1.25\u2033 - narrowband shots for maximum nebular detail<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This high-quality narrowband filter set is designed specifically for astrophotography with monochrome cameras. With a bandwidth of only 7 nm, the H-alpha, SII and OIII filters each isolate their specific emission line, revealing high-contrast faint nebular structures. Light pollution is effectively suppressed even under urban skies.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>What does each filter do?<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>H-alpha (656 nm):<\/strong> For emission nebulae and HII regions<\/li>\n\n\n\n<li><strong>OIII (501 nm):<\/strong> For planetary nebulae and supernova remnants<\/li>\n\n\n\n<li><strong>SII (672 nm):<\/strong> For sulfur emissions in deep emission areas<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Together they make the classic <strong>Hubble palette (SHO)<\/strong> possible - a popular color combination among astrophotographers.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Compatibility:<\/strong><br>These filters are <strong>homofocal with ZWO LRGB filters<\/strong> and fit all 1.25\u2033 filter wheels (such as the ZWO EFW 8\u00d71.25\u2033). They are optimally matched to cameras such as the <strong>ASI1600MM, 183MM or 294MM Mono<\/strong>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>What you can capture with it<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u2713 Hydrogen nebulae such as the Rosette Nebula and California Nebula<br>\u2713 Supernova remnants such as the Veil Nebula<br>\u2713 Planetary nebulae such as the Helix Nebula<br>\u2713 Hubble-style SHO images with mono cameras<br>\u2713 Deep-sky targets with minimal light pollution<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Specifications<\/strong><\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Feature<\/th><th>Value<\/th><\/tr><\/thead><tbody><tr><td><strong>Filter type<\/strong><\/td><td>Narrowband filter set (H\u03b1, SII, OIII)<\/td><\/tr><tr><td><strong>Format<\/strong><\/td><td>1.25 inches (31.7 mm)<\/td><\/tr><tr><td><strong>Half-value width<\/strong><\/td><td>7 nm<\/td><\/tr><tr><td><strong>Transmission<\/strong><\/td><td>&gt;80%<\/td><\/tr><tr><td><strong>Housing<\/strong><\/td><td>Aluminum<\/td><\/tr><tr><td><strong>Design<\/strong><\/td><td>Line filter<\/td><\/tr><tr><td><strong>Compatibility<\/strong><\/td><td>Filter wheels with 1.25\u2033 slots (such as ZWO EFW)<\/td><\/tr><tr><td><strong>Use<\/strong><\/td><td>Astrophotography with mono cameras<\/td><\/tr><tr><td><strong>Series<\/strong><\/td><td>ZWO Filter Series<\/td><\/tr><\/tbody><\/table><\/figure>","protected":false},"excerpt":{"rendered":"<p data-start=\"385\" data-end=\"591\">The ZWO Filters Filter-Set H-alpha, SII, OIII 1.25\u2033 is perfect for astrophotography of faint nebulae. Designed for use with mono cameras and filter wheels, with excellent light pollution suppression.<\/p>","protected":false},"featured_media":20390,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[123],"product_cat":[56,587,588,3138],"product_tag":[],"class_list":["post-14831","product","type-product","status-publish","has-post-thumbnail","product_brand-zwo","product_cat-telescoop-accessoires","product_cat-camera-accessoires","product_cat-filters","product_cat-imaging-filters-smalband-en-lrgb","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":15359,"url":"https:\/\/www.telescoop.nl\/en\/zwo-h-alpha-sii-oiii-filterset-36-mm-losse-filters\/","url_meta":{"origin":14831,"position":0},"title":"ZWO 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