{"product_id":"tele-vue-bandmate-oiii-filter","title":"Tele Vue BandMate OIII Filter","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eIsolates doubly ionized oxygen (OIII) emission lines\u003c\/li\u003e\n\u003cli\u003eDramatically increases contrast on planetary nebulae and supernova remnants\u003c\/li\u003e\n\u003cli\u003eManufactured by Astronomik in Germany for Tele Vue\u003c\/li\u003e\n\u003cli\u003eIndividually tested and serialized for optical quality\u003c\/li\u003e\n\u003cli\u003eAvailable in 1.25\" and 2\" mounted formats\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eTele Vue BandMate OIII Filter\u003c\/h2\u003e\n\u003cp\u003eAvailable in 1.25-inch and 2-inch formats, the Tele Vue BandMate OIII Filter isolates the critical OIII emission lines from planetary nebulae and supernova remnants, with each serialized filter undergoing rigorous German manufacturing and testing by Astronomik and Tele Vue to guarantee image integrity.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eOIII Narrowband: Isolating Planetary Nebulae and Supernova Remnants\u003c\/h3\u003e\n\u003cp\u003eThe BandMate OIII filter transmits a narrow band of light centered on the 501nm wavelengths emitted by doubly ionized oxygen. This is the dominant light produced by emission nebulae, particularly planetary nebulae and the delicate filaments of supernova remnants. By blocking nearly all other light, the filter dramatically darkens the sky background and boosts the contrast of these specific objects.\u003c\/p\u003e\n\u003cp\u003eTargets like the Dumbbell Nebula (M27), the Ring Nebula (M57), and the Veil Nebula (NGC 6960) transform from faint smudges into detailed structures. This filter is an essential tool for visual observers looking to pull the most detail out of these challenging deep-sky objects, especially from light-polluted locations.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eGerman-Made Optics with Rigorous Tele Vue Testing\u003c\/h3\u003e\n\u003cp\u003eTele Vue partners with Astronomik of Germany to produce the BandMate series, ensuring a level of quality control that exceeds industry standards. Each filter undergoes a multi-stage inspection process before it is approved for sale, guaranteeing that it will not degrade the pristine images produced by Tele Vue optics.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpectrographic Analysis:\u003c\/strong\u003e Astronomik tests each filter on a spectrograph to confirm the coating precisely matches its design specification for OIII transmission.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Power Optical Test:\u003c\/strong\u003e Tele Vue individually tests each filter at high power to ensure it introduces no image degradation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMechanical \u0026amp; Cosmetic Inspection:\u003c\/strong\u003e Every filter is checked for proper threading and fit, and examined for cosmetic flaws like pinholes or sleeks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSerialization:\u003c\/strong\u003e Each filter is serialized, providing a traceable record of its quality control passage.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow will the Tele Vue BandMate OIII filter improve my view of the Veil Nebula (NGC 6960) in a 10\" Dobsonian?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIn a 10\" scope, the Tele Vue BandMate OIII will make the faint, filamentary structure of the Veil Nebula (NGC 6960) stand out dramatically against a much darker sky background. The filter isolates the specific light emitted by the nebula, revealing intricate details that are normally washed out by skyglow.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Tele Vue BandMate OIII filter to see the Ring Nebula (M57) from my light-polluted suburban backyard?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, the Tele Vue BandMate OIII filter is exceptionally effective in light-polluted conditions. It blocks the wavelengths associated with common streetlights and general skyglow, while selectively passing the light from the Ring Nebula (M57). This significantly increases contrast, making the nebula's shape and central star easier to observe even from suburban skies.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat makes the Tele Vue BandMate OIII different from other OIII filters?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe primary difference is the rigorous, dual-company quality control. Every Tele Vue BandMate OIII is made by \u003cstrong\u003eAstronomik in Germany\u003c\/strong\u003e and then independently tested by \u003cstrong\u003eTele Vue in the USA\u003c\/strong\u003e. This includes spectrographic analysis, high-power optical testing, and cosmetic inspection, with each filter being serialized. This is how Tele Vue keeps every BandMate filter consistent.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Tele Vue BandMate OIII filter useful for galaxies or star clusters?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this filter is not recommended for broadband targets like galaxies and star clusters. These objects emit light across the entire visible spectrum. The Tele Vue BandMate OIII will block most of that light, making these objects extremely dim or invisible. It is a specialized filter designed specifically for emission nebulae.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhich size Tele Vue BandMate OIII filter, 1.25\" or 2\", should I choose?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eChoose the size that matches your eyepieces. If you primarily use \u003cstrong\u003e1.25\" eyepieces\u003c\/strong\u003e for high-magnification views of planetary nebulae, the 1.25\" filter is ideal. If you use \u003cstrong\u003e2\" wide-field eyepieces\u003c\/strong\u003e to view large supernova remnants like the Veil Nebula, the 2\" filter is necessary to avoid vignetting.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWho manufactures the Tele Vue BandMate OIII filter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Tele Vue BandMate OIII filter is manufactured for Tele Vue by \u003cstrong\u003eAstronomik in Germany\u003c\/strong\u003e, a renowned producer of high-quality astronomical filters. All materials are sourced from Germany, and each filter is co-inspected by both companies.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Type\u003c\/td\u003e\n\u003ctd\u003eNarrowband, OIII (doubly ionized oxygen)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAvailable Sizes\u003c\/td\u003e\n\u003ctd\u003e1.25\" and 2\" Mounted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eAstronomik, Germany, for Tele Vue\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary Targets\u003c\/td\u003e\n\u003ctd\u003ePlanetary nebulae, supernova remnants\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQuality Control\u003c\/td\u003e\n\u003ctd\u003eOptical, spectrographic, mechanical and cosmetic testing; serialized\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eTele Vue BandMate OIII Filter (1.25\" or 2\", as selected)\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/tele-vue-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eTele Vue Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TeleVue","offers":[{"title":"2\" Mounted","offer_id":53005139443997,"sku":"TV-B2O-0200","price":364.0,"currency_code":"CAD","in_stock":true},{"title":"1.25\" Mounted","offer_id":53005139476765,"sku":"TV-B2O-0125","price":200.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/TeleVue-Tele-Vue-BandMate-OIII-Filter-1_fb5ca95c-903f-4c20-afb0-fa9f523adf06.jpg?v=1790041570","url":"https:\/\/davidastro.com\/products\/tele-vue-bandmate-oiii-filter","provider":"David Astro","version":"1.0","type":"link"}