{"product_id":"askar-colourmagic-2-duo-band-super-d1-filter-ha-oiii-cm-duo-d1","title":"Askar Colour Magic 2\" Duo-Band Super D1 Filter - Ha\/OIII - CM-DUO-D1","description":"\u003cp style=\"text-align: center;\"\u003e\u003cem\u003e\u003cstrong\u003eEnhance OIII \u0026amp; Ha with this Askar Color Magic 2\" Duo-Band Filter!\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cem\u003e\u003cstrong\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0851\/2766\/files\/Askar_D1_Banner.jpg?v=1758824977\" alt=\"\"\u003e\u003c\/strong\u003e\u003c\/em\u003eDesigned for deep-sky imaging of emission nebulae with a color camera, the Askar Colour Magic D1 Super Duo-Band Filter permits H-alpha and Oxygen III wavelengths through while blocking those that contribute to light pollution.  \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis Colour Magic Super D1 2\" Duo-Band filter has a narrow bandwidth of 6nm. Therefore, even if your are in an area affected by the urban light pollution, night glow or other undesired light, you can capture high-quality deep-sky images. The narrower bandwidth and efficient light transmission considerably enhance the contrast of your pictures, making it easier to display the details of the stars that otherwise are fairly difficult to spot.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAlthough they are not specifically high speed filters, the Super D1 Duo-narrowband filter behaves well when used with a fast telescope, even at f\/1.9.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWith its efficient and excellent halo control performance, as well as a fun and innovative shooting experience, this Super D Dual Ha\/OIII filter will become your favorite in no time!\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 class=\"e_h3-72 s_summary\"\u003eSpecifications\u003c\/h3\u003e\n\u003cdiv class=\"e_richText-73 s_title clearfix response-transition\"\u003e\n\u003ctable align=\"center\" cellspacing=\"0\" width=\"84.20%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"3\"\u003e\n\u003cp\u003e\u003cstrong\u003eD1 Duo-narrowband Filter (OIII \u0026amp; Ha) 2”\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eFWHM\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003eOIII：6.5nm±0.5nm\/Ha：8.5nm±0.5nm\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eCWL\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e500.7nm \u0026amp; 656.6nm\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003ePeak transmittance\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e85%\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eThickness\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e1.85 ± 0.05mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eBarrier property\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e≥OD5 @ 200-1100nm\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eSurface finish\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e60\/40\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eParallelism\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cp\u003e\u003cstrong\u003e30”\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e","brand":"Askar","offers":[{"title":"Default Title","offer_id":42450541445233,"sku":"ASK-CM-DUO-D1","price":288.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0851\/2766\/files\/Askar_Duo_Super_D1_Filter_3380609d-5869-4ed0-b735-ab2bc46d61c6.png?v=1776458926","url":"https:\/\/khanscope.com\/fr-fr\/products\/askar-colourmagic-2-duo-band-super-d1-filter-ha-oiii-cm-duo-d1","provider":"Khan Scope Centre","version":"1.0","type":"link"}