{"product_id":"sky-mentor-light-pollution-filter-2-sm-ta-301-3","title":"Sky Mentor Light Pollution Filter - 2\" - TA-301-3","description":"\u003ch2 style=\"text-align: center;\"\u003eSky Mentor Light Pollution Filter 2\"\u003c\/h2\u003e\n\u003cp\u003eThe Sky Mentor Light Pollution Filter is a 2\" specialty filter that blocks the visual spectrum except for wavelengths between 480 nm and 510 nm. This type of blocking filter is also known as a Nebular or ALP (anti-light pollution) or an LPR (Light Pollution Reduction) filter.\u003c\/p\u003e\n\u003cp\u003e This particular transmission characteristic allows passage of ionized oxygen and hydrogen lines, but blocks light pollution sky reflectance from mercury and sodium vapor lamps. \u003c\/p\u003e\n\u003cp\u003eComes in a protective plastic case.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNOTE \u0026amp; CAUTION:\u003c\/strong\u003e This Filter is NOT FOR SOLAR VIEWING. DO NOT USE for solar viewing!\u003c\/p\u003e","brand":"Sky Mentor","offers":[{"title":"Default Title","offer_id":41478083641457,"sku":"SMT-TA301-3","price":45.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0851\/2766\/files\/LPR_Filter_2inch.jpg?v=1776459165","url":"https:\/\/khanscope.com\/en-fr\/products\/sky-mentor-light-pollution-filter-2-sm-ta-301-3","provider":"Khan Scope Centre","version":"1.0","type":"link"}