{"product_id":"daystar-quark-gemini-chromosphere-prominence-switchable-h-alpha-filter-dsz4g","title":"Daystar Quark Gemini Chromosphere \/ Prominence Switchable H-alpha Filter (DSZ4G)","description":"\u003ch2\u003eDaystar Quark Gemini Chromosphere \/ Prominence Switchable H-alpha Filter\u003c\/h2\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe Daystar Quark Gemini brings the best contains both Prominence and Chromosphere bandpass filters for instant slide-action switching between either view.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eNow, observers can enjoy the best of both options in one easy to use tool with no equipment swapping or refocusing of any kind.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003ePush the slider arm side to side like in an eye exam to see the broad stroked prominences of wider bandpass, then the high contrast of narrow bandpass.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\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 data-mce-fragment=\"1\"\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 data-mce-fragment=\"1\"\u003eExact filter bandpass will vary based on final telescope application, so QUARK* assemblies are qualified with one element to show best prominences and the other to show best surface contrast (chromosphere).  No specific FWHM bandpass is designated.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eOutreach astronomers can use the prom vs chrom switch to demonstrate each feature with an extra teaching moment about wing shift going on in fast moving prominences.  Imagers can use the same switch to create comparison images without the need to exchange equipment or refocus with short lived features.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\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 data-mce-fragment=\"1\"\u003e*The QUARK* assembly is a product of DayStar Instruments, using DayStar Filters’ Fabry Perot etalon technology.\u003cbr data-mce-fragment=\"1\"\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\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eContains TWO separate Fabry Perot Etalon elements which may be shifted safely via push-pull into view.\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eA hand-matched pair of narrower (\u0026lt;0.5Å FWHM) and wider (\u0026gt;0.6Å FWHM) etalons shall be SE grade and independently tuneable.\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eShips with male combo 1.25″ or 2.0″ combo eyepiece snouts with safety indent slot directly into your diagonal\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eShips with standard 1.25 female eyepiece drawtube output. Optional interchangeable 2″ and SCT accessories available.\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eBrass compression ring to protect eyepiece.\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eUses USB power, 5v 2.0amp\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eIncludes 90-240VAC wall adapter with international plug adapters.\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eTwo tuning knobs allow wing shifting +\/- 0.5à with detents at every 0.1Ã\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eLED indicator for power, warming, ready, fault\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e5 year warranty,\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eOptional 8-hour battery pack available.\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eIntegrated, fully baffled 2 element telecentric 4.2X barlow optimized for 656nm\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eIntegrated 12mm blocking filter\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e22mm clear filter aperture\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eBest performance with F\/4 – F\/8 refractors\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eFull disk viewing possible on refractors up to ~450mm focal length refractors\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eNo aperture limitations. May be used on larger refractors for higher magnification views\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eShips in watertight pelican style equipment case for dust \u0026amp; humidity-free storage.\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eNot suited for off-axis application.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\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\u003eWatertight Pelican Style Equipment Case\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\" 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\/GeminiManual.docx?v=1727988185\" title=\"Daystar Gemini Quark Manual\" rel=\"noopener\" target=\"_blank\"\u003eDaystar Gemini Quark Manual\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca rel=\"noopener\" title=\"Daystar Combo Quark Manual\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/Daystar-Combo-Quark-Manual.pdf?v=1668028351\" target=\"_blank\"\u003eDaystar Combo Quark Manual\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/Daystar-Combo-Quark-Manual.pdf?v=1668028351\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"Daystar","offers":[{"title":"Default Title","offer_id":43133311353061,"sku":"DAY-DSZ4G","price":3633.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/daystar-quark-gemini-chromosphere-prominence-switchable-h-alpha-filter-dsz4g-astronomy-plus-1.webp?v=1690485163","url":"https:\/\/istronomyplus.com\/products\/daystar-quark-gemini-chromosphere-prominence-switchable-h-alpha-filter-dsz4g","provider":"Astronomy Plus – Telescopes \u0026 Astrophotography Canada","version":"1.0","type":"link"}