{"product_id":"explore-scientific-nebula-filter-h-alpha-2-inch-7nm","title":"Explore Scientific Nebula Filter H-Alpha 2-inch 7nm","description":"\u003ch6\u003eFEATURES:\u003c\/h6\u003e\n\u003cul\u003e\n\u003cli\u003eHigh quality Explore Scientific H-Alpha filter\u003c\/li\u003e\n\u003cli\u003eLets only the emission lines of hydrogen \"through\"\u003c\/li\u003e\n\u003cli\u003eAbsorbs almost all of the artificial light\u003c\/li\u003e\n\u003cli\u003eMore contrast and details for all urban astrophotographers\u003c\/li\u003e\n\u003cli\u003ePassband bandwidth: 7 nm\u003c\/li\u003e\n\u003cli\u003eH-alpha filters can only be used for astrophotography\u003c\/li\u003e\n\u003cli\u003eNarrow-band design for difficult city conditions and with heavily brightened skies\u003c\/li\u003e\n\u003cli\u003eAlso blocks almost all light from mercury and sodium vapor lamps\u003c\/li\u003e\n\u003cli\u003eMany of the red glowing emission nebulae are only visible to their full extent on photos with these filters\u003c\/li\u003e\n\u003cli\u003eIn spite of the existing light pollution, this results in surprisingly good image results\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch6\u003eDESCRIPTION:\u003c\/h6\u003e\n\u003cdiv id=\"tab-1\" class=\"tab-pane tabactive\"\u003e\n\u003cdiv class=\"tabcontent\"\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eThe Explore Scientific H-Alpha filter utilizes the emission lines of hydrogen to filter out interfering light from artificial sources, allowing for a clearer view and improved photography of deep-sky objects. This specialized filter is essential for urban astrophotographers looking to capture the full extent of celestial objects and overcome light pollution.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003eThe Explore Scientific mist filters are supplied with an individual test report - so you can be sure that you are receiving high-quality filters.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003eCA Residents:\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e\u003ca rel=\"noopener\" aria-label=\"Prop 65 WARNING(S) - Opens in a new tab\" href=\"https:\/\/explorescientificusa.com\/pages\/prop65\" target=\"_blank\"\u003eProp 65 WARNING(S)\u003c\/a\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Explore Scientific","offers":[{"title":"Default Title","offer_id":47817500590384,"sku":"310140","price":268.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0843\/3113\/5280\/files\/310140_2_2000x2000_fbc7c0e1-670e-47b1-bff2-6c085d19ccaa.jpg?v=1709869749","url":"https:\/\/b9549c-5.myshopify.com\/products\/explore-scientific-nebula-filter-h-alpha-2-inch-7nm","provider":"StellarOptix","version":"1.0","type":"link"}