{"product_id":"used-hutech-idas-nebula-booster-nbzex-48mm-filter-2","title":"Used Hutech IDAS Nebula Booster NBZex 48mm Filter, 2\"","description":"\u003ch4\u003eCondition:\u003c\/h4\u003e\n\u003cp\u003eThis is a Hutech IDAS NBXex Nebula Booster filter in good condition. The optics have some dust on the back side that we have not been able to remove; see the photos.  We have reduced the price accordingly to account for this condition issue. \u003cmeta charset=\"utf-8\"\u003eThis includes the jewel case. \u003c\/p\u003e\n\u003cp\u003eThe \"ex\" version\u003cspan\u003e functions in the same manner as NBZ\/NBZ UHS except that IDAS NBZ\u003c\/span\u003e\u003cspan class=\"style82\"\u003eex\u003c\/span\u003e\u003cspan\u003e supports from F1.8 to infinity.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eDescription:\u003c\/h4\u003e\n\u003cp\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cb\u003eThe IDAS Nebula Booster 48mm Filter\u003c\/b\u003e\u003cspan\u003e is designed to enhance the contrast of Ha (Hydrogen Alpha) and OIII (Oxygen II) emission nebula while accommodating the filter spectral shift when used with modern fast optical systems. This dual-band filter is ideal for one-shot color cameras, as well as mono-color astronomical cameras.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003eProprietary IDAS Sophisticated Optics Technology\u003c\/h3\u003e\n\u003cp\u003eIon-Gun Assist Deposition (IGAD) coating technology is used by IDAS for these astronomical filters. This results in superior filters with robust coatings and long-term spectral stability, even with temperature and humidity extremes. This stability is especially important for bandpass curves with steep slopes (narrowband filters). This technology helps to virtually eliminate bandpass shifts from the +\/-3 or 4nm typical of standard coating filters.\u003c\/p\u003e\n\u003cp\u003eThe Multi Bandpass Technology (MBT) is used in conjunction with the IGAD hard-coating technology to further elevate IDAS filters. This technology allows IDAS to create very complicated filters for astronomical use.\u003c\/p\u003e\n\u003cp\u003eUltra Fine Polish (UFP) Finishing really sets IDAS filters apart from the competition. They are polished twice as long as is typical for optical glass. In combination with the use of high-quality substrate glass, no scratches, bubbles, or other defects are visible even under microscopic inspection.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1979\/5379\/files\/NBX_in_cone_Ha-part_480x480_png.webp?v=1748555939\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1979\/5379\/files\/NBX_in_cone_OIII-part_480x480_png.webp?v=1748555944\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis filter has ideal flat-top bandpass, as well as in-band transmission. The off-center bandpass accommodates off-axis rays for fast optics (up to f\/2). The steep bandpass edges help to minimize internal reflections. It is able to fully block NIR up to 1200nm.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"heading capitalize\"\u003eSpecifications\u003c\/p\u003e\n\u003cdiv class=\"specs-table\"\u003e\n\u003ctable class=\"specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"left\"\u003eFilter Shape\u003c\/td\u003e\n\u003ctd class=\"right\"\u003eRound\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"left\"\u003eFilter Size\u003c\/td\u003e\n\u003ctd class=\"right\"\u003e48mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"left\"\u003eFilter Thickness\u003c\/td\u003e\n\u003ctd class=\"right\"\u003e2.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e","brand":"Astro-Hutech","offers":[{"title":"Default Title","offer_id":49163726455043,"sku":"U2607-MS-HU-NBZ-48","price":250.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1979\/5379\/files\/c827f344-030c-4dc4-abb7-864f55eeacbd.jpg?v=1783118593","url":"https:\/\/milehighastro.com\/products\/used-hutech-idas-nebula-booster-nbzex-48mm-filter-2","provider":"Mile High Astronomy","version":"1.0","type":"link"}