{"product_id":"antlia-triband-rgb-ultra-ii-filter-2-mounted","title":"Antlia Triband RGB Ultra II Filter - 2\" Mounted","description":"\u003cp\u003e\u003cspan\u003eThe Antlia Triband RGB Ultra Filter II adds the H-Beta 486.1nm line to the Triband RGB Ultra, enhancing its ability to capture finer details of nebulae. It is designed for light pollution suppression for OSC and Mono cameras. The spectral design selected the most substantial information in the RGB bands, which makes Antlia Triband RGB Ultra Filter II possible to shoot \u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eover 90% of deep sky objects\u003c\/span\u003e\u003c\/strong\u003e, in addition to its excellent performance on emission nebula, different from other ultra-narrowband filters, it is able to capture galaxies, reflection nebulae, and star clusters from a Bortle 8 location to Bortle 1 while presenting more balanced RGB colors in your images. Also, it has a broad bandpass designed to cope with faster optics up to the f\/2 focal ratio.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe quantum efficiency of the B channel in current CMOS sensors is often significantly lower than that of R and G channels. \u003c\/span\u003e\u003cspan\u003eAntlia team was to provide a filter with a more realistic color balance for astrophotography from light polluted locations. \u003c\/span\u003e\u003cspan\u003eThe problem with the low blue wavelength efficiency becomes apparent when imaging reflection nebulae and blue stars. In \u003c\/span\u003e\u003cspan\u003eCMOS sensors, the blue wavelengths also contain contribution from the stronger green spectrum, thereby affecting the balance \u003c\/span\u003e\u003cspan\u003eof the blue colours. Many popular imaging objects contain reflection nebula with faint blue hues such the central part of\u003c\/span\u003e\u003cspan\u003eNGC2264. Therefore, we designed Antlia Triband RGB Ultra Filter that not only retains the HSO emission signal but also\u003c\/span\u003e\u003cspan\u003eincreases the amount of Luminous flux of the blue B channel. By improving the blue wavelength transmission, the color of the\u003c\/span\u003e\u003cspan\u003ephoto is better balanced and easier to manage in post processing. \u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cspan\u003eApplication and Performance: \u003c\/span\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eIt is great for galaxies, reflection nebulae and star clusters. \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003e \u003cspan\u003eRefined coating process makes the Triband RGB Ultra filters II \u003cspan style=\"text-decoration: underline;\"\u003ewith excellent halo suppression\u003c\/span\u003e and improved signal-to-noise performance.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eIt has been specifically designed for balanced color transmission using Antlia's experience in spectrum design. \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eThe balanced transmission allows the minimal color cast to broadband emission objects such as stars, galaxies, and\u003c\/span\u003e\u003cspan\u003eglobular clusters. \u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eThe Triband RGB Ultra can be used with nearly all systems as fast as f\/2 with minimal loss of efficiency or shifts in\u003c\/span\u003e\u003cspan\u003espectral response. \u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eWhen shooting LRGB with mono cameras, unless you are wanting to image LDN (dark nebulae) the Triband RGB Ultra\u003c\/span\u003e\u003cspan\u003ecan be used as a luminance filter replacement for objects such as nebulae and galaxies to improve contrast and signal to\u003c\/span\u003e\u003cspan\u003enoise ratio. \u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eThe Triband RGB Ultra is able to better isolate the H-alpha, O3 and blue spectrum from the background light pollution. \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eFor visual use, Triband RGB Ultra filter ensures the high transmittance of the HSO emission line and can be used for \u003c\/span\u003e\u003cspan\u003eobserving deep-sky objects with large-diameter telescopes. \u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eThe filter provides excellent flexibility and compatibility with both OSC and Mono camera systems. \u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003e \u003cspan\u003eWhen shooting LRGB with mono cameras, unless you are wanting to image LDN (dark nebulae) the Triband RGB Ultra II can be used as a luminance filter replacement for objects such as nebulae and galaxies to improve contrast and signal to noise ratio.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e\u003cbr\u003e\u003cbr\u003eSize Available: \u003c\/strong\u003e2’’ mounted\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/h4\u003e\n\u003ch4\u003e\u003cstrong\u003eWavelength\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cblockquote\u003e\n\u003cp\u003e\u003cstrong\u003eH-alpha\u003c\/strong\u003e: \u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003e656.3nm\u003cbr\u003e\u003cstrong\u003eNII\u003c\/strong\u003e: \u003cmeta charset=\"utf-8\"\u003e658.3nm \/ \u003cmeta charset=\"utf-8\"\u003e654.8nm\u003cbr\u003e\u003cstrong\u003eSII\u003c\/strong\u003e: \u003cmeta charset=\"utf-8\"\u003e671.6nm \/ 673.1nm\u003cbr\u003e\u003cstrong\u003eOIII\u003c\/strong\u003e: \u003cmeta charset=\"utf-8\"\u003e495.9nm \/ 500.7nm\u003cbr\u003e\u003cstrong\u003eH-beta\u003c\/strong\u003e: \u003cmeta charset=\"utf-8\"\u003e486.1nm\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003ch4\u003e\u003cstrong\u003ePeak Transmission\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cblockquote\u003e\n\u003cp\u003e\u003cspan\u003e\u0026gt;92%\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003cp\u003e\u003cstrong\u003eBlocking\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cblockquote\u003e\n\u003cstrong\u003e\u003c\/strong\u003e≥OD4@ 300-1050nm\u003c\/blockquote\u003e\n\u003cp\u003e\u003cstrong\u003eFilter Thickness\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cblockquote\u003e2mm+\/-0.05mm\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\n\u003c\/blockquote\u003e\n\u003cblockquote\u003e\u003c\/blockquote\u003e\n\u003cblockquote\u003e\u003c\/blockquote\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cbr\u003e\u003cstrong\u003eImage Credit:\u003c\/strong\u003e Trifid Nebula by Steve Nagel with HyperStar 8, ZWO ASI585 MC Pro and Antlia Triband RGB Ultra Filter \u003c\/span\u003e\u003c\/p\u003e\n\u003c!----\u003e","brand":"Antlia","offers":[{"title":"Default Title","offer_id":46491679785057,"sku":"tip1787928733423","price":139.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0580\/3933\/7057\/files\/antlia-triband-rgb-ultra-ii-filter---2-mounted_1.jpg?v=1787928741","url":"https:\/\/www.sunlitharbor.shop\/products\/antlia-triband-rgb-ultra-ii-filter-2-mounted","provider":"My Store","version":"1.0","type":"link"}