{"product_id":"used-explore-scientific-nebula-filter-2-o-iii","title":"Used Explore Scientific Nebula Filter 2\" O-III","description":"\u003cp\u003eThis is a 2\" Explore Scientific O-III filter in excellent condition.  T\u003cmeta charset=\"utf-8\"\u003ehere are no sleeks, dings, or marks, and the optics are clean. It comes in its original jewel case and box, with the original filter transmission curve testing results.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e(Any dust you see in the photos is removable - it seems that these filters develop an electrostatic charge such that the dust in the air is just attracted to the filter.)  \u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eExplore Scientific Nebula Filter 2\" O-III Range from 483nm to 511nm with peak at 496nm. Transmission 96.7%\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOxygen III\u003c\/strong\u003e\u003cspan\u003e - This is the highest contrast Nebula Filter in the series, a line filter for only the two emission lines of oxygen. A great choice for observations of supernova remnants and other nebulae that glow in OIII. Other types of objects that glow in all parts of the visible spectrum (e.g. galaxies) are reduced visibly, but some normally invisible regions of nebulae are clearly visible. This filter fits all standard 2.0-inch eyepieces and filter wheels. \u003c\/span\u003e\u003c\/p\u003e","brand":"Explore Scientific","offers":[{"title":"Default Title","offer_id":50182784909571,"sku":"U2610-VD-310200","price":90.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1979\/5379\/files\/camera-62F00CE7-9293-4952-8D9D-E67E481D2BCC.jpg?v=1794083421","url":"https:\/\/milehighastro.com\/products\/used-explore-scientific-nebula-filter-2-o-iii","provider":"Mile High Astronomy","version":"1.0","type":"link"}