{"product_id":"daystar-filters-quark-gemini-chrom-prom-switchable-filter","title":"QUARK GEMINI Chrom\/Prom Switchable Filter","description":"\u003cp\u003eThe DayStar Quark Solar H-alpha Filter is a precision optical accessory designed for solar observation and imaging. It enables astronomers to view the Sun in the hydrogen-alpha spectral line, revealing fine solar details such as prominences, filaments, and surface granulation that are invisible in white light.\u003c\/p\u003e\r\n\u003cp\u003eIdeal for advanced amateur astronomers and solar imaging enthusiasts, this filter provides a dedicated solution for safe and detailed solar study, transforming standard telescopes into specialized solar instruments.\u003c\/p\u003e\r\n\u003ch6\u003eHigh-Precision Etalon\u003c\/h6\u003e\r\n\u003cp\u003e\u003cstrong\u003eFeature:\u003c\/strong\u003e Internal narrowband etalon optimized for H-alpha wavelength.\u003cbr\u003e\u003cstrong\u003eAdvantage:\u003c\/strong\u003e Isolates the hydrogen-alpha spectral line with a narrow bandpass.\u003cbr\u003e\u003cstrong\u003eBenefit:\u003c\/strong\u003e Delivers sharp and high-contrast views of solar chromospheric features.\u003c\/p\u003e\r\n\u003ch6\u003eCompact and Integrated Design\u003c\/h6\u003e\r\n\u003cp\u003e\u003cstrong\u003eFeature:\u003c\/strong\u003e All-in-one filter unit with integrated blocking filter.\u003cbr\u003e\u003cstrong\u003eAdvantage:\u003c\/strong\u003e Simplifies setup by eliminating the need for multiple filter components.\u003cbr\u003e\u003cstrong\u003eBenefit:\u003c\/strong\u003e Enhances user convenience and reduces optical alignment complexity.\u003c\/p\u003e\r\n\u003ch6\u003eTuning Mechanism\u003c\/h6\u003e\r\n\u003cp\u003e\u003cstrong\u003eFeature:\u003c\/strong\u003e Adjustable tuning control for precise wavelength alignment.\u003cbr\u003e\u003cstrong\u003eAdvantage:\u003c\/strong\u003e Allows fine spectral adjustment to compensate for Doppler shifts and temperature changes.\u003cbr\u003e\u003cstrong\u003eBenefit:\u003c\/strong\u003e Ensures optimal filter performance and image clarity under varying observing conditions.\u003c\/p\u003e\r\n\u003ch6\u003eCompatibility\u003c\/h6\u003e\r\n\u003cp\u003e\u003cstrong\u003eFeature:\u003c\/strong\u003e Designed to fit standard 1.25\" eyepiece barrels.\u003cbr\u003e\u003cstrong\u003eAdvantage:\u003c\/strong\u003e Compatible with a wide range of refractors and Maksutov-Cassegrain telescopes.\u003cbr\u003e\u003cstrong\u003eBenefit:\u003c\/strong\u003e Offers flexibility for integration with existing telescope setups.\u003c\/p\u003e\r\n\u003ch6\u003eOptical Coatings\u003c\/h6\u003e\r\n\u003cp\u003e\u003cstrong\u003eFeature:\u003c\/strong\u003e Multi-coated optics throughout the filter.\u003cbr\u003e\u003cstrong\u003eAdvantage:\u003c\/strong\u003e Minimizes reflections and maximizes light transmission.\u003cbr\u003e\u003cstrong\u003eBenefit:\u003c\/strong\u003e Produces brighter and clearer solar images with reduced ghosting.\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable class=\"spec-table\"\u003e\r\n\u003ctbody\u003e\r\n\u003ctr\u003e\r\n\u003cth\u003eOptical Design\u003c\/th\u003e\r\n\u003ctd\u003eNarrowband H-alpha Etalon Filter\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003cth\u003eBandpass\u003c\/th\u003e\r\n\u003ctd\u003eNarrow hydrogen-alpha wavelength\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003cth\u003eBlocking Filter Size\u003c\/th\u003e\r\n\u003ctd\u003eIntegrated within unit\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003cth\u003eClear Aperture\u003c\/th\u003e\r\n\u003ctd\u003eApproximately 15 mm\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003cth\u003eMechanical Interface\u003c\/th\u003e\r\n\u003ctd\u003e1.25\" eyepiece barrel\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003cth\u003eCoatings\u003c\/th\u003e\r\n\u003ctd\u003eMulti-coated optics\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003cth\u003eTuning Method\u003c\/th\u003e\r\n\u003ctd\u003eManual adjustable tuning ring\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003cth\u003eMaterial\u003c\/th\u003e\r\n\u003ctd\u003eHigh-grade optical glass and metal housing\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003cth\u003eCompatibility\u003c\/th\u003e\r\n\u003ctd\u003eRefractor and Maksutov-Cassegrain telescopes with 1.25\" focuser\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003cth\u003eWeight\u003c\/th\u003e\r\n\u003ctd\u003eLightweight, compact design\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003cth\u003eImaging Suitability\u003c\/th\u003e\r\n\u003ctd\u003eVisual observation and solar imaging\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003c\/tbody\u003e\r\n\u003c\/table\u003e","brand":"DayStar Filters","offers":[{"title":"Default Title","offer_id":45927817707719,"sku":"1-04-001-0040","price":2595.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0736\/9575\/6487\/files\/1-04-001-0040-01.jpg?v=1765149680","url":"https:\/\/snowflakeskies.com\/products\/daystar-filters-quark-gemini-chrom-prom-switchable-filter","provider":"Snowflake Skies","version":"1.0","type":"link"}