{"product_id":"used-radian-triad-quad-band-narrowband-filter-2","title":"Used Radian Triad Quad-Band Narrowband Filter (2'')","description":"\u003cp\u003eThis is a 2\" Triad Quad-Band Filter in excellent condition.  It comes in its original jewel box.  \u003cmeta charset=\"utf-8\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eAny dust you see in the photos is removable - it seems that these filters develop an electrostatic charge such that the dust in the air is just attracted to the filter.  \u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003e   \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e  \u003c\/p\u003e\n\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cdiv class=\"page\" title=\"Page 2\"\u003e\n\u003cdiv class=\"section\"\u003e\n\u003cdiv class=\"layoutArea\"\u003e\n\u003cdiv class=\"column\"\u003e\n\u003cul\u003e\n\u003cli\u003eShoot in any light polluted area\u003c\/li\u003e\n\u003cli\u003eH-beta, OIII, H-alpha, and SII Band Passes\u003c\/li\u003e\n\u003cli\u003eWorks with any camera including DSLRs\u003c\/li\u003e\n\u003cli\u003eExceptional narrowband \u0026amp; luminance filter\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eIf your telescope is f\/3 or faster, you need the\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/optcorp.com\/products\/radian-telescopes-pre-shifted-triad-ultra-2\" title='Radian Triad Ultra Narrowband Filter 2\"- For Fast Telescopes'\u003efast telescopes version here\u003c\/a\u003e\u003cmeta charset=\"utf-8\"\u003e \u003ca href=\"https:\/\/optcorp.com\/products\/radian-telescopes-pre-shifted-triad-ultra-2\" title='Radian Triad Ultra Narrowband Filter 2\"- For Fast Telescopes'\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul class=\"tab-list\"\u003e\n\u003cli id=\"description\"\u003e\n\u003cdiv class=\"description bottom clearfix\"\u003e\n\u003cdiv data-region=\"main\" data-shogun-variant-id=\"5e6bc15ee7b3c3004fb128f0\" data-shogun-platform-type=\"shopify\" data-shogun-page-version-id=\"5e6bc15ee7b3c3004fb128ec\" data-shogun-page-id=\"5e6bc15ee7b3c3004fb128ed\" data-shogun-site-id=\"bd1fd2cb-e6af-4d61-87c2-c0deac50e2c0\" data-shogun-id=\"5e6bc15ee7b3c3004fb128ed\" class=\"shogun-root\"\u003e\n\u003cdiv class=\"shg-c\" id=\"s-a62a7ac9-00e4-4376-9900-998ca96ff499\"\u003e\n\u003cdiv data-region=\"main\" data-shogun-variant-id=\"5e6bbfa15c3bbe00511a783f\" data-shogun-platform-type=\"shopify\" data-shogun-page-version-id=\"5e6bbfa15c3bbe00511a783b\" data-shogun-page-id=\"5e6bbfa15c3bbe00511a783c\" data-shogun-site-id=\"bd1fd2cb-e6af-4d61-87c2-c0deac50e2c0\" data-shogun-id=\"5e6bbfa15c3bbe00511a783c\" class=\"shogun-root\"\u003e\n\u003ch2\u003eUnmatched Multi-Narrowband Performance\u003c\/h2\u003e\n\u003cp\u003eThe Triad Ultra filter stands alone in its class as a filter with four ultra-narrow bandpasses that cover Hydrogen alpha, Hydrogen beta, Sulfur II, and Oxygen III wavelengths - the four most common wavelengths for narrowband astrophotography. As a multi-narrowband filter, the Triad Ultra is designed to photograph emission nebulae, planetary nebulae, and supernova remnants, and excels at doing so from light pollution. However, we recommend you try it from dark skies as well - the narrow bandpasses will give you tighter stars and more pronounced nebulosity.\u003c\/p\u003e\n\u003ctable class=\"center\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003c\/th\u003e\n\u003cth\u003eHydrogen-beta\u003c\/th\u003e\n\u003cth\u003eOxygen III\u003c\/th\u003e\n\u003cth\u003eHydrogen-alpha\u003c\/th\u003e\n\u003cth\u003eSulfur II\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFWHM\u003c\/td\u003e\n\u003ctd\u003e5nm\u003c\/td\u003e\n\u003ctd\u003e4nm\u003c\/td\u003e\n\u003ctd\u003e4nm\u003c\/td\u003e\n\u003ctd\u003e4nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePeak Transmission\u003c\/td\u003e\n\u003ctd\u003e79%\u003c\/td\u003e\n\u003ctd\u003e97%\u003c\/td\u003e\n\u003ctd\u003e87%\u003c\/td\u003e\n\u003ctd\u003e90%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cbr\u003e\n\u003ch2\u003eUse Case for Monochrome Cameras\u003c\/h2\u003e\n\u003cp\u003eYou might think that the Triad Ultra is only designed for color cameras, but it actually works great on monochrome cameras too! A traditional luminance filter has a broad bandpass that lets light in from around 400 to 700nm. This works well for broadband imaging of galaxies and reflection nebulae, for example, but will be affected heavily by light pollution with such a broad bandpass. With the Triad Ultra, you can gather luminance data in all four major wavelengths while simultaneously cutting out light pollution and you get the added benefit of keeping the stars tight and small. Think of it as the ultimate luminance filter for your monochrome camera!\u003c\/p\u003e\n\u003ch2\u003eAmerican Made\u003c\/h2\u003e\n\u003ccenter\u003e\n\u003cp\u003e\u003cspan\u003eThe Triad Ultra is 100% American made and uses advanced multi-coatings and extreme tolerance glass, to ensure it is always consistent and accurate. Filter thickness is 3mm.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eBelow you'll see an incredible image of the Rosette Nebula taken by\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eJason Guenzel\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eusing the Triad Ultra:\u003c\/p\u003e\n\u003cdiv\u003e\u003cimg alt=\"Jason Guenzel Nebula with RASA and Triad Ultra\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1594\/4815\/files\/Jason_Guenzel_-_NGC2238_-_The_Rosette_-_RASA8_Triad_Ultra_ASI533MC_600x600.jpg?v=1582742980\"\u003e\u003c\/div\u003e\n\u003cp\u003eThe Triad 2-inch filter is housed in a 7mm tall ring, with 5mm height above the threads. The ring wall thickness is between 1.3 and 2.58mm - depending on production batch. Please double check to make sure this will fit your filter wheel or accessories\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eSpecifications\u003c\/p\u003e\n\u003c\/center\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"specs-table\"\u003e\n\u003ctable class=\"specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"left\"\u003eFilter Shape\u003c\/td\u003e\n\u003ctd class=\"right\"\u003eRound\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"left\"\u003eFilter Thickness\u003c\/td\u003e\n\u003ctd class=\"right\"\u003e3mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"left\"\u003eFilter Type\u003c\/td\u003e\n\u003ctd class=\"right\"\u003eLight Pollution\/City Light Suppression\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"left\"\u003eFilter Type\u003c\/td\u003e\n\u003ctd class=\"right\"\u003eTriad\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"left\"\u003eFree Shipping\u003c\/td\u003e\n\u003ctd class=\"right\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"left\"\u003eSize\u003c\/td\u003e\n\u003ctd class=\"right\"\u003e2\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv class=\"clearfix\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp class=\"heading capitalize\"\u003eIncluded items\u003c\/p\u003e\n\u003cdiv class=\"section clearfix\"\u003e\n\u003cdiv class=\"description\"\u003e\n\u003cul\u003e\n\u003cli\u003e2-Inch Triad Ultra Quad-Band Filter\u003c\/li\u003e\n\u003cli\u003eFilter case\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Radian","offers":[{"title":"Default Title","offer_id":48070620283139,"sku":"U2604-GF-RT-TRIAD-ULT2","price":600.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1979\/5379\/files\/cf93bc27-e3ef-4a44-aa64-84ae81e457c7.jpg?v=1778093630","url":"https:\/\/milehighastro.com\/products\/used-radian-triad-quad-band-narrowband-filter-2","provider":"Mile High Astronomy","version":"1.0","type":"link"}