{"product_id":"optolong-l-extreme-2-filtro-dual-band-astrofotografia","title":"Optolong L-eXtreme 2\" Dual Band Filter 7nm","description":"\u003ch2\u003eOptolong L-eXtreme 2\" (50.8mm) – Dual Band Narrowband Filter\u003c\/h2\u003e\n\u003cp\u003eThe Optolong L-eXtreme 2\" filter (M48x0.75 – 50.8mm) is a \u003cstrong\u003edual band narrowband filter\u003c\/strong\u003e designed for deep-sky astrophotography. It isolates the key nebula emission lines \u003cstrong\u003eH-Alpha (656nm) and OIII (500nm)\u003c\/strong\u003e, including \u003cstrong\u003eH-Beta\u003c\/strong\u003e, offering excellent suppression of light pollution thanks to its \u003cstrong\u003e7nm narrow bandwidth\u003c\/strong\u003e. This makes it ideal for imaging under urban or suburban skies.\u003c\/p\u003e\n\n\u003cp\u003eDeveloped as an evolution of the well-known Optolong L-eNhance filter, the \u003cstrong\u003eL-eXtreme\u003c\/strong\u003e is a practical solution for astrophotographers who want high-contrast results without investing in a monochrome camera and filter wheel. It performs exceptionally well with \u003cstrong\u003ecolor CMOS cameras\u003c\/strong\u003e, \u003cstrong\u003eDSLRs\u003c\/strong\u003e, and \u003cstrong\u003eCCD cameras (mono or color)\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eWhy choose the Optolong L-eXtreme\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eEffectively reduces light pollution\u003c\/li\u003e\n  \u003cli\u003eIdeal for emission nebulae (HII regions)\u003c\/li\u003e\n  \u003cli\u003eHigh transmission up to \u003cstrong\u003e90%\u003c\/strong\u003e\u003c\/li\u003e\n  \u003cli\u003e7nm narrow bandpass for superior contrast\u003c\/li\u003e\n  \u003cli\u003eExcellent color balance with one-shot color cameras\u003c\/li\u003e\n  \u003cli\u003eSuitable for Bortle 7–8 skies\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRecommended uses\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eLight pollution reduction\u003c\/li\u003e\n  \u003cli\u003eEnhancing contrast on emission nebulae\u003c\/li\u003e\n  \u003cli\u003eDeep-sky imaging with color CMOS and DSLR cameras\u003c\/li\u003e\n  \u003cli\u003eCompatible with CCD cameras\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\u003ctd\u003eDiameter\u003c\/td\u003e\u003ctd\u003e2\" (50.8mm)\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr\u003e\u003ctd\u003eThread\u003c\/td\u003e\u003ctd\u003eM48x0.75\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr\u003e\u003ctd\u003eFilter type\u003c\/td\u003e\u003ctd\u003eDual Band \/ Narrowband\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr\u003e\u003ctd\u003eBandpass\u003c\/td\u003e\u003ctd\u003e7nm\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr\u003e\u003ctd\u003eEmission lines\u003c\/td\u003e\u003ctd\u003eH-Alpha, OIII, H-Beta\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr\u003e\u003ctd\u003eTransmission\u003c\/td\u003e\u003ctd\u003eUp to 90%\u003c\/td\u003e\u003c\/tr\u003e\n    \u003ctr\u003e\u003ctd\u003eCompatibility\u003c\/td\u003e\u003ctd\u003eColor CMOS, DSLR, mono\/color CCD\u003c\/td\u003e\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003eThe Optolong L-eXtreme filter is a must-have for serious astrophotographers who want to capture detailed and high-contrast nebula images, even from heavily light-polluted locations.\u003c\/p\u003e","brand":"Optolong","offers":[{"title":"Default Title","offer_id":51261302800715,"sku":"OPL-eXtreme-2","price":289.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0886\/1981\/1147\/files\/optolong-filtro-l-extreme-50.8mm-astrofotografia-doppia-banda.jpg?v=1744221765","url":"https:\/\/adriasky.it\/en\/products\/optolong-l-extreme-2-dual-band-7nm-filter","provider":"Adriasky","version":"1.0","type":"link"}