{"product_id":"touptek-1-25-sho-filters","title":"Touptek 1.25\" SHO Filter Set - OIII, HA \u0026 SII - 6.5nm -  SHO-125","description":"\u003cp class=\"MsoNormal\"\u003eNarrowband filters make astronomical photography more interesting. Emission nebulae contain rich and complex narrowband emission lines, such as the deep red 656.28nm Hα emission line, the red [SII] (671.6nm and 673.1nm) and the blue-green [OIII] (500.7nm and 495.9nm).\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan\u003eSpecifications:\u003c\/span\u003e\u003c\/b\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003e· \u003c\/span\u003e\u003cspan\u003eD\u003c\/span\u003e\u003cspan\u003eiameter: 1.25\u003c\/span\u003e\u003cspan\u003e-\u003c\/span\u003e\u003cspan\u003einch (31.77mm)\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003e· \u003c\/span\u003e\u003cspan\u003eThread: M28.5*0.6mm\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003e· \u003c\/span\u003e\u003cspan\u003eLens Thickness: \u003c\/span\u003e\u003cspan\u003e2\u003c\/span\u003e\u003cspan\u003emm\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003e· \u003c\/span\u003e\u003cspan\u003eLens Material: Optical Glass\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003eFrame Material: Aluminum Alloy\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003eWork Showcase\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003eH-alpha filter\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003ehcg gain100 300s\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0833\/1532\/7288\/files\/1.25inch_hfilterpost.jpg\" title=\"SHO 2inch Filters\" alt=\"SHO 2inch Filters\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003eSII filter\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003ehcg gain100 300s\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0833\/1532\/7288\/files\/1.25inch_Sfilterpost.jpg\" alt=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan\u003eGerman SCHOTT Optical Glass Material\u003c\/span\u003e\u003c\/b\u003e\u003cb\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp align=\"justify\" class=\"MsoNormal\"\u003e\u003cspan\u003eThe filter is made from high-quality German SCHOTT optical glass with a diameter of 1.25 inches (31.77mm) and a thickness of 2mm. It has been polished on both sides for a smooth and even surface, ensuring excellent optical performance. The filter is suitable for astronomical observation and imaging needs, guaranteeing high-quality image reproduction.\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"SHO 2inch Filters\" title=\"SHO 2inch Filters\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0833\/1532\/7288\/files\/1.25_H1.jpg?v=1739172550\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"SHO 2inch Filters\" title=\"SHO 2inch Filters\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0833\/1532\/7288\/files\/1.25_H3.jpg?v=1739172550\"\u003e\u003c\/p\u003e\n\u003cp class=\"15\"\u003e\u003cspan\u003e \u003c\/span\u003e\u003cb\u003e\u003cspan\u003eIAD Coating \u003c\/span\u003e\u003c\/b\u003e\u003cb\u003e\u003cspan\u003eTechnology\u003c\/span\u003e\u003c\/b\u003e\u003cb\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" align=\"justify\"\u003e\u003cspan\u003eThe filter employs IAD (Ion-Assisted Deposition) coating technology, which provides a dense and wear-resistant coating, greatly enhancing the filter's stability and durability. The high-strength coating ensures stable performance even after prolonged use.\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"SHO 2inch Filters\" title=\"SHO 2inch Filters\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0833\/1532\/7288\/files\/1.25_O2.jpg?v=1739172550\"\u003e\u003cspan\u003e \u003c\/span\u003e\u003cimg alt=\"SHO 2inch Filters\" title=\"SHO 2inch Filters\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0833\/1532\/7288\/files\/1.25_O3.jpg?v=1739172550\"\u003e\u003c\/p\u003e\n\u003cp class=\"15\"\u003e\u003cspan\u003e \u003c\/span\u003e\u003cb\u003e\u003cspan\u003eHigh Transmission and Anti-Reflective Coating\u003c\/span\u003e\u003c\/b\u003e\u003cb\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" align=\"justify\"\u003e\u003cspan\u003eThe filter's surface is equipped with a high-transparency anti-reflective coating, with a transmission rate of over 90%. This effectively reduces both surface and internal reflections, minimizing halo effects and ensuring clear imaging. The filter is also polished with flat optical treatment to optimize performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" align=\"justify\"\u003e\u003cspan\u003e\u003c\/span\u003e\u003cb\u003e\u003cspan\u003ePrecise Wavelength Calibration\u003c\/span\u003e\u003c\/b\u003e\u003cb\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" align=\"justify\"\u003e\u003cspan\u003e1.25-inch filter\u003c\/span\u003e\u003cspan\u003es \u003c\/span\u003e\u003cspan\u003eoffer highly accurate wavelength calibration (tolerance of just ±0.3 nanometers), effectively filtering and enhancing specific wavelengths of light. \u003c\/span\u003e\u003cspan\u003eThey\u003c\/span\u003e\u003cspan\u003e allo\u003c\/span\u003e\u003cspan\u003ew\u003c\/span\u003e\u003cspan\u003e precise capture of particular\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eemission lines or absorption spectral features of celestial bodies, ensuring accurate image reproduction and data integrity.\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"SHO 2inch Filters\" title=\"SHO 2inch Filters\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0833\/1532\/7288\/files\/1.25_S3.jpg?v=1739172550\"\u003e\u003cspan\u003e \u003c\/span\u003e\u003cimg alt=\"SHO 2inch Filters\" title=\"SHO 2inch Filters\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0833\/1532\/7288\/files\/1.25_S1.jpg?v=1739172550\"\u003e\u003cspan\u003e \u003c\/span\u003e\u003cimg\u003e\u003c\/p\u003e\n\u003cp class=\"15\"\u003e\u003cb\u003eGood Wear Resistance and Easy to Clean\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"15\"\u003e\u003cspan\u003eThe filter’s coating design is durable and resistant to wear, making it less likely to get scratched during regular cleaning. The optimized coating stress design avoids affecting the flatness of the optical substrate, ensuring filter accuracy and extending service life.\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan\u003eHigh-Quality Aluminum Alloy Frame Widely Compatible with Electric Filter Wheels\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003eThe filter uses a high-strength aluminum alloy frame, anodized and matte-treated for strong corrosion resistance, ease of handling, and durability. It is compatible with mainstream 1.25-inch electric filter wheels on the market, allowing users to flexibly pair and improve usability.\u003c\/span\u003e\u003c\/p\u003e","brand":"ToupTek","offers":[{"title":"Default Title","offer_id":41972514717809,"sku":"TOU-SHO-125","price":231.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0851\/2766\/files\/1.25_SHO.webp?v=1776459326","url":"https:\/\/khanscope.com\/fr-fr\/products\/touptek-1-25-sho-filters","provider":"Khan Scope Centre","version":"1.0","type":"link"}