{"product_id":"daystar-quark-prominence-h-alpha-filter-dsz4p","title":"Daystar Quark Prominence H-alpha Filter (DSZ4P)","description":"\u003ch2\u003eDaystar Quark Prominence H-alpha Filter\u003c\/h2\u003e\n\u003cp\u003eThe Daystar Quark Prominence H-alpha Filter marries high quality components of a telecentric barlow, adapters, snouts and Daystar hydrogen alpha filter into one simple assembly.\u003c\/p\u003e\n\u003cp\u003eQuark* is available in a choice of “prominence” or “chromosphere”.\u003c\/p\u003e\n\u003cp\u003eExact filter bandpass will vary based on final telescope application, so QUARK* assemblies are qualified to show either prominence or surface (chromosphere).  No specific FWHM bandpass is designated.  Now observers can buy a filter based on their desired observing goals instead of their budget.  Choose fore WIDER prominences with a little surface or MORE surface contrast (Chromosphere) and narrower prominences. Both are available for the same low price!\u003c\/p\u003e\n\u003cp\u003eAll DayStar Hydrogen a filter assemblies applied on telescopes over 80mm in aperture need to be used in conjunction with an Energy Rejection Filter.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1.25″ or 2.0″ combo eyepiece snouts with safety indent slot directly into your diagonal\u003c\/li\u003e\n\u003cli\u003eStandard 1.25 eyepiece drawtube output with optional 2″ and SCT accessories available.\u003c\/li\u003e\n\u003cli\u003eBrass compression ring to protect eyepiece.\u003c\/li\u003e\n\u003cli\u003eUses USB power, 5v 1.5amp\u003c\/li\u003e\n\u003cli\u003eIncludes 90-240VAC wall adapter with international plug adapters.\u003c\/li\u003e\n\u003cli\u003eTuning knob allows wing shifting +\/- 0.5à with detents at every 0.1Ã\u003c\/li\u003e\n\u003cli\u003eLED indicator for power, warming, ready, fault\u003c\/li\u003e\n\u003cli\u003e5 year warranty,\u003c\/li\u003e\n\u003cli\u003eOptional 8-hour battery pack available.\u003c\/li\u003e\n\u003cli\u003eIntegrated, fully baffled 2 element telecentric 4.2X barlow optimized for 656nm\u003c\/li\u003e\n\u003cli\u003eIntegrated 12mm blocking filter\u003c\/li\u003e\n\u003cli\u003e21mm clear filter aperture\u003c\/li\u003e\n\u003cli\u003eBest performance with F\/4 – F\/8 refractors\u003c\/li\u003e\n\u003cli\u003eFull disk viewing possible on refractors up to ~450mm focal length refractors\u003c\/li\u003e\n\u003cli\u003eNo aperture limitations. May be used on larger refractors for higher magnification views\u003c\/li\u003e\n\u003cli\u003eShips in convenient Twist-Case for safe, dust-free storage.\u003c\/li\u003e\n\u003cli\u003eNot suited for off-axis application.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor use on refractors of F\/4 to F\/8**, the user needn’t worry about configurations. Just insert in your diagonal, add an eyepiece and view.\u003c\/p\u003e\n\u003cp\u003eThe patent pending QUARK* contains a custom Daystar Instruments 4.2X telecentric barlow lens fully optimized in coatings and optical design specifically for the Hydrogen Alpha wavelength. This highly specialized telecentric lens offers superior field flatness.\u003c\/p\u003e\n\u003cp\u003eThe fully optimized design eliminates the need for any adapters.  It’s all combined in one lightweight eyepiece sized device. The new, compact design configuration eliminates unnecessary components, weight and associated costs. We even reduced power consumption, so the Quark* can now operate all day off a small, palm-sized optional battery pack. Baffles have been added to increase contrast and AR coatings are optimized for the 656nm wavelength.\u003c\/p\u003e\n\u003cp\u003e*The QUARK* assembly is a product of DayStar Instruments, using DayStar Filters’ Fabry Perot etalon technology.\u003cbr\u003e** QUARK Filters may be used at shorter and longer focal ratios than recommended. F-ratios of F\/9 and higher will offer a dimmer visual view and may only be bright enough for photographic applications. F-ratios of less than F\/4 will be brighter, but also widen the effective FWHM bandpass performance of the QUARK filter.\u003c\/p\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWavelength\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e6562.8Å\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTuning knob\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eWing shift +\/- 0.5Å in 0.1Å increments.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFWHM\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNot specified. Prominence units are generally 0.6Å or above, Chromosphere units generally 0.5Å or below.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eF\/4 to F\/9 refractor telescopes.\n\u003cp\u003eNot suited for off-axis (SCT or dob) application.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBarlow\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIntegrated, fully baffled 2 element telecentric 4.3X barlow optimized for 656nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBlocking filter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIntegrated 12mm blocking filter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eClear aperture\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e20mm clear etalon aperture\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFull disk\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePasses full solar disk for focal lengths under ~450mm.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAperture Limit\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNone, usable on large telescopes for high magnificationFor apertures over 80mm, suggest UV\/IR cut filter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSun Side\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.25” snout or 2” snout\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEyepiece side\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.25” female drawtube with brass compression ring to protect eyepiece\n\u003cp\u003eOptional 2″ and SCT accessories available\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUSB power, 5v 1.5amp, female Micro-B connector\n\u003cp\u003ePower is required for proper operation\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWall adapter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e90-240VAC wall adapter, includes US, UK, Euro and Australian plugs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOpt. battery\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e” Optional 8-hour battery pack available”\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLED indicator\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYellow: temperature settling\n\u003cp\u003eGreen: ready to observe, filter on band\u003c\/p\u003e\n\u003cp\u003eRed: fault such as low voltage\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSettling time\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eApproximately 5-15 minutes after power up or change of wing shift\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTemperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAmbient temperature range 40°-100°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e55mm diameter x 71mm x 146mm long\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTBD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003e\u003cbr\u003e\u003c\/h3\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eIn the Box\u003c\/h3\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan\u003eQuark Filter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan\u003eWall Adapter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan\u003eUSB Power Cord\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cspan\u003eCase\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eWarranty \u0026amp; Manuals\u003c\/h3\u003e\n\u003cp data-mce-fragment=\"1\"\u003eDaystar 5-Years Warranty\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/Daystar-Quark-Flyer.pdf?v=1668026525\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eDaystar Quark Flyer\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/Daystar-Combo-Quark-Manual.pdf?v=1668028351\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eDaystar Quark Manual\u003c\/a\u003e\u003c\/p\u003e","brand":"Daystar","offers":[{"title":"Default Title","offer_id":43133311221989,"sku":"DAY-DSZ4P","price":1813.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/daystar-quark-prominence-h-alpha-filter-dsz4p-astronomy-plus-1.webp?v=1690485163","url":"https:\/\/istronomyplus.com\/products\/daystar-quark-prominence-h-alpha-filter-dsz4p","provider":"Astronomy Plus – Telescopes \u0026 Astrophotography Canada","version":"1.0","type":"link"}