{"product_id":"daystar-dszsd-quark-sodium-d-line-solar-filter-photospheric-imaging-beginner-solar-observation","title":"DayStar Quark Sodium D-Line Solar Filter — Observe the Sun in Sodium D-Line Light for Unique Solar Detail","description":"\u003cp\u003eA specialty solar filter for photospheric imaging in sodium light. The DayStar Quark Sodium D-Line filter (DSZSD) isolates the sodium D-line wavelength — producing a unique solar view of photospheric features and granulation that differs from standard H-Alpha or white light views. A specialty addition for dedicated solar observers expanding beyond H-Alpha into multi-wavelength solar astronomy. Ships free to the US.\u003c\/p\u003e\u003ctable style=\"width:100%;border-collapse:collapse;margin-top:24px;font-size:14px;line-height:1.5;\"\u003e\n\u003cthead\u003e\u003ctr\u003e\u003cth colspan=\"2\" style=\"text-align:left;padding:10px 14px;background:#f7f7f7;border-bottom:2px solid #ddd;font-size:15px;font-weight:600;\"\u003eSpecifications\u003c\/th\u003e\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 14px;border-bottom:1px solid #efefef;font-weight:600;color:#444;width:44%;\"\u003eWavelength\u003c\/td\u003e\n\u003ctd style=\"padding:8px 14px;border-bottom:1px solid #efefef;\"\u003eSodium D-line (589.3nm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 14px;border-bottom:1px solid #efefef;font-weight:600;color:#444;\"\u003eFilter Type\u003c\/td\u003e\n\u003ctd style=\"padding:8px 14px;border-bottom:1px solid #efefef;\"\u003eSolid-state Fabry-Pérot etalon (electrically tuned)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 14px;border-bottom:1px solid #efefef;font-weight:600;color:#444;\"\u003eTarget Features\u003c\/td\u003e\n\u003ctd style=\"padding:8px 14px;border-bottom:1px solid #efefef;\"\u003ePhotospheric sodium absorption; line-of-sight velocity Doppler shifts; granulation contrast in a wavelength rarely imaged by amateurs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 14px;border-bottom:1px solid #efefef;font-weight:600;color:#444;\"\u003eIntegrated Barlow\u003c\/td\u003e\n\u003ctd style=\"padding:8px 14px;border-bottom:1px solid #efefef;\"\u003e4.2× telecentric\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 14px;border-bottom:1px solid #efefef;font-weight:600;color:#444;\"\u003eBlocking Filter\u003c\/td\u003e\n\u003ctd style=\"padding:8px 14px;border-bottom:1px solid #efefef;\"\u003e12mm integrated, 21mm clear aperture\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 14px;border-bottom:1px solid #efefef;font-weight:600;color:#444;\"\u003ef\/Ratio Compatibility\u003c\/td\u003e\n\u003ctd style=\"padding:8px 14px;border-bottom:1px solid #efefef;\"\u003ef\/4 – f\/8 refractors only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 14px;border-bottom:1px solid #efefef;font-weight:600;color:#444;\"\u003eFull-Disk Focal Length\u003c\/td\u003e\n\u003ctd style=\"padding:8px 14px;border-bottom:1px solid #efefef;\"\u003e≤450mm refractor focal length for full solar disk\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 14px;border-bottom:1px solid #efefef;font-weight:600;color:#444;\"\u003eTuning Range\u003c\/td\u003e\n\u003ctd style=\"padding:8px 14px;border-bottom:1px solid #efefef;\"\u003e±0.5Å with 0.1Å detents\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 14px;border-bottom:1px solid #efefef;font-weight:600;color:#444;\"\u003ePower\u003c\/td\u003e\n\u003ctd style=\"padding:8px 14px;border-bottom:1px solid #efefef;\"\u003eUSB 5V, 1.5A (90–240VAC wall adapter included)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 14px;border-bottom:1px solid #efefef;font-weight:600;color:#444;\"\u003eWarranty\u003c\/td\u003e\n\u003ctd style=\"padding:8px 14px;border-bottom:1px solid #efefef;\"\u003e5 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 14px;font-weight:600;color:#444;\"\u003eWhat's in the Box\u003c\/td\u003e\n\u003ctd style=\"padding:8px 14px;\"\u003eQuark Sodium D-Line filter, 1.25\" and 2\" snouts with safety indents, 90–240VAC wall adapter with international plug adapters, Twist-Case\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Daystar","offers":[{"title":"Default Title","offer_id":44573519708194,"sku":"DSZSD","price":1295.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/6968\/5282\/files\/DayStar_QUARK_Eyepiece_Solar_Filter_Sodium_D_Line_Lower_Body_Side_Profile_600x600_efdb859f-3952-45d6-90b7-94918e46795e.jpg?v=1774496851","url":"https:\/\/telescopewolves.com\/products\/daystar-dszsd-quark-sodium-d-line-solar-filter-photospheric-imaging-beginner-solar-observation","provider":"Telescope Wolves","version":"1.0","type":"link"}