{"product_id":"optolong-filtro-l-synergy-2-sii-oiii-7nm-dual-band","title":"Optolong L-Synergy 2\" SII\/OIII 7nm Dual Band Filter","description":"\u003cdiv class=\"product-description\"\u003e\n\u003ch1\u003eOptolong L-Synergy 2\" SII\/OIII 7nm Dual Band Filter\u003c\/h1\u003e\n\u003cp\u003eThe \u003cstrong\u003eOptolong L-Synergy 2\" SII\/OIII 7nm Dual Band Filter\u003c\/strong\u003e is designed for astrophotographers who want to capture high-quality images even under heavy \u003cem\u003elight pollution\u003c\/em\u003e or bright moonlight. With its \u003cstrong\u003e7nm bandwidth\u003c\/strong\u003e, it provides excellent transmission at the spectral lines \u003cstrong\u003eSII (672.4nm)\u003c\/strong\u003e and \u003cstrong\u003eOIII (500.7nm)\u003c\/strong\u003e, while efficiently blocking unwanted wavelengths.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003e2-inch version\u003c\/strong\u003e is ideal for telescopes equipped with 2\" focusers, ensuring wide compatibility with optical systems and both color and monochrome sensors. Precision construction guarantees stable performance and uniform transmission.\u003c\/p\u003e\n\u003ch2\u003eBenefits for Astrophotography\u003c\/h2\u003e\n\u003cp\u003eThis \u003cstrong\u003edual band narrowband filter\u003c\/strong\u003e captures the emissions of \u003cstrong\u003eionized sulfur (SII)\u003c\/strong\u003e and \u003cstrong\u003edoubly ionized oxygen (OIII)\u003c\/strong\u003e simultaneously. A single exposure records both spectral components, optimizing imaging time and improving color fidelity.\u003c\/p\u003e\n\u003cp\u003ePerfect for photographing nebulae such as the \u003cem\u003eVeil Nebula\u003c\/em\u003e, \u003cem\u003eCrab Nebula\u003c\/em\u003e, \u003cem\u003eM76\u003c\/em\u003e, and other supernova remnants or planetary nebulae. When combined with \u003cstrong\u003eOptolong L-eXtreme\u003c\/strong\u003e (Ha\/OIII) or \u003cstrong\u003eL-Ultimate\u003c\/strong\u003e, it allows for spectacular and scientifically accurate images in the \u003cem\u003eHubble Palette\u003c\/em\u003e style, even from suburban skies.\u003c\/p\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDual band narrowband filter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSize\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2\" (50.8 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBandwidth\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e7nm (SII 672.4nm, OIII 500.7nm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTransmission\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eVery high at both channels, efficient out-of-band blocking\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLight Pollution Reduction\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEffective against artificial lights and moonlight\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTelescopes with 2\" focusers, color and monochrome sensors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIdeal Use\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eImaging emission nebulae (SII\/OIII)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRecommended Combinations\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eL-eXtreme (Ha\/OIII), L-Ultimate for Hubble Palette\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e","brand":"Optolong","offers":[{"title":"Default Title","offer_id":53471320834379,"sku":"OPL-Synergy-2","price":289.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0886\/1981\/1147\/files\/filtro_optolong_l-synergy_2_pollici_SII_OIII_7nm_dual_band.png?v=1759398914","url":"https:\/\/adriasky.it\/en\/products\/optolong-l-synergy-2-sii-oiii-7nm-dual-band","provider":"Adriasky","version":"1.0","type":"link"}