{"product_id":"touptek-sho6-5nm-filters","title":"ToupTek SHO Filters","description":"\u003ch2 data-section-id=\"1sc9ap3\" data-start=\"0\" data-end=\"54\" style=\"text-align: center;\"\u003eToupTek SHO Filters (Hα \/ SII \/ OIII)\u003c\/h2\u003e\n\u003cp data-start=\"56\" data-end=\"532\"\u003eIf emission nebulae are your thing (and let’s be honest… they should be), a good \u003cstrong data-start=\"137\" data-end=\"159\"\u003eSHO narrowband set\u003c\/strong\u003e is the shortcut to cleaner data, higher contrast, and those classic “Hubble palette” color mixes—especially when you’re imaging under light pollution or bright skies. ToupTek’s SHO filters are precisely tuned to the key nebular emission lines and built on quartz glass with modern IAD coatings for strong transmission, tight band control, and serious out-of-band blocking.\u003c\/p\u003e\n\u003cul data-start=\"534\" data-end=\"1838\"\u003e\n\u003cli data-section-id=\"1ded0xw\" data-start=\"534\" data-end=\"630\"\u003eComplete \u003cstrong data-start=\"545\" data-end=\"567\"\u003eSHO narrowband set\u003c\/strong\u003e for emission nebula imaging and Hubble-style color synthesis\u003c\/li\u003e\n\u003cli data-section-id=\"q72k4e\" data-start=\"631\" data-end=\"950\"\u003eTargets the three main ionized emission lines in star-forming regions:\n\u003cul data-start=\"708\" data-end=\"950\"\u003e\n\u003cli data-section-id=\"1i9ckvp\" data-start=\"708\" data-end=\"764\"\u003e\n\u003cstrong data-start=\"710\" data-end=\"726\"\u003eHα (656.3nm)\u003c\/strong\u003e for nebula structure and morphology\u003c\/li\u003e\n\u003cli data-section-id=\"775ibf\" data-start=\"767\" data-end=\"844\"\u003e\n\u003cstrong data-start=\"769\" data-end=\"787\"\u003eOIII (500.7nm)\u003c\/strong\u003e for high-energy excitation zones and blue-green detail\u003c\/li\u003e\n\u003cli data-section-id=\"1freowu\" data-start=\"847\" data-end=\"950\"\u003e\n\u003cstrong data-start=\"849\" data-end=\"866\"\u003eSII (671.6nm)\u003c\/strong\u003e for faint sulfur structure and stratification (great paired with Hα for contrast)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"sffpj7\" data-start=\"951\" data-end=\"1061\"\u003eDramatically \u003cstrong data-start=\"966\" data-end=\"1020\"\u003ereduces light pollution and background stray light\u003c\/strong\u003e, boosting signal-to-noise and contrast\u003c\/li\u003e\n\u003cli data-section-id=\"15p75ui\" data-start=\"1062\" data-end=\"1122\"\u003e\n\u003cstrong data-start=\"1064\" data-end=\"1092\"\u003eHigh transmission (\u0026gt;90%)\u003c\/strong\u003e to keep exposures efficient\u003c\/li\u003e\n\u003cli data-section-id=\"1qobs9u\" data-start=\"1123\" data-end=\"1184\"\u003eStrong out-of-band suppression with \u003cstrong data-start=\"1161\" data-end=\"1173\"\u003eOD ≥ 5.0\u003c\/strong\u003e blocking\u003c\/li\u003e\n\u003cli data-section-id=\"b1owje\" data-start=\"1185\" data-end=\"1270\"\u003e\n\u003cstrong data-start=\"1187\" data-end=\"1224\"\u003eGlue-free, single-piece structure\u003c\/strong\u003e for stability and clean optical performance\u003c\/li\u003e\n\u003cli data-section-id=\"1uoqe71\" data-start=\"1271\" data-end=\"1353\"\u003ePrecision optics: \u003cstrong data-start=\"1291\" data-end=\"1307\"\u003equartz glass\u003c\/strong\u003e + \u003cstrong data-start=\"1310\" data-end=\"1351\"\u003edouble-sided high-precision polishing\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"17c33si\" data-start=\"1354\" data-end=\"1456\"\u003eAdvanced coating stack using \u003cstrong data-start=\"1385\" data-end=\"1418\"\u003eIAD (Ion Assisted Deposition)\u003c\/strong\u003e for durable, consistent performance\u003c\/li\u003e\n\u003cli data-section-id=\"z87hy5\" data-start=\"1457\" data-end=\"1713\"\u003eChoose the size that matches your camera and wheel:\n\u003cul data-start=\"1515\" data-end=\"1713\"\u003e\n\u003cli data-section-id=\"nud14x\" data-start=\"1515\" data-end=\"1576\"\u003e\n\u003cstrong data-start=\"1517\" data-end=\"1536\"\u003e36mm unmounted:\u003c\/strong\u003e recommended for \u003cstrong data-start=\"1553\" data-end=\"1574\"\u003eAPS-C and smaller\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1f7db3w\" data-start=\"1579\" data-end=\"1648\"\u003e\n\u003cstrong data-start=\"1581\" data-end=\"1599\"\u003e1.25\" mounted:\u003c\/strong\u003e recommended for \u003cstrong data-start=\"1616\" data-end=\"1638\"\u003e1-inch and smaller\u003c\/strong\u003e sensors\u003c\/li\u003e\n\u003cli data-section-id=\"zz6i68\" data-start=\"1651\" data-end=\"1713\"\u003e\n\u003cstrong data-start=\"1653\" data-end=\"1668\"\u003e2\" mounted:\u003c\/strong\u003e recommended for \u003cstrong data-start=\"1685\" data-end=\"1711\"\u003efull-frame and smaller\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"xyi85u\" data-start=\"1714\" data-end=\"1838\"\u003eWide filter wheel compatibility (common patterns): \u003cstrong data-start=\"1767\" data-end=\"1782\"\u003e7-hole 36mm\u003c\/strong\u003e, \u003cstrong data-start=\"1784\" data-end=\"1800\"\u003e8-hole 1.25\"\u003c\/strong\u003e, \u003cstrong data-start=\"1802\" data-end=\"1815\"\u003e5-hole 2\"\u003c\/strong\u003e electric filter wheels\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch1 data-section-id=\"1spgaq0\" data-start=\"1840\" data-end=\"1856\"\u003eSpecifications\u003c\/h1\u003e\n\u003cul data-start=\"1857\" data-end=\"2814\"\u003e\n\u003cli data-section-id=\"9o9aho\" data-start=\"1857\" data-end=\"1892\"\u003e\n\u003cstrong data-start=\"1859\" data-end=\"1874\"\u003eFilter set:\u003c\/strong\u003e Hα \/ SII \/ OIII\u003c\/li\u003e\n\u003cli data-section-id=\"1mvzkec\" data-start=\"1893\" data-end=\"1959\"\u003e\n\u003cstrong data-start=\"1895\" data-end=\"1915\"\u003eAvailable sizes:\u003c\/strong\u003e \u003cstrong data-start=\"1916\" data-end=\"1936\"\u003e36mm (unmounted)\u003c\/strong\u003e \/ \u003cstrong data-start=\"1939\" data-end=\"1948\"\u003e1.25\"\u003c\/strong\u003e \/ \u003cstrong data-start=\"1951\" data-end=\"1957\"\u003e2\"\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"194m4d8\" data-start=\"1960\" data-end=\"1992\"\u003e\n\u003cstrong data-start=\"1962\" data-end=\"1982\"\u003eGlass thickness:\u003c\/strong\u003e \u003cstrong data-start=\"1983\" data-end=\"1990\"\u003e2mm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"11p54bp\" data-start=\"1993\" data-end=\"2090\"\u003e\n\u003cstrong data-start=\"1995\" data-end=\"2019\"\u003eCentral wavelengths:\u003c\/strong\u003e\n\u003cul data-start=\"2024\" data-end=\"2090\"\u003e\n\u003cli data-section-id=\"v4a3ts\" data-start=\"2024\" data-end=\"2043\"\u003e\n\u003cstrong data-start=\"2026\" data-end=\"2033\"\u003eHα:\u003c\/strong\u003e 656.3nm\u003c\/li\u003e\n\u003cli data-section-id=\"dd2wbu\" data-start=\"2046\" data-end=\"2066\"\u003e\n\u003cstrong data-start=\"2048\" data-end=\"2056\"\u003eSII:\u003c\/strong\u003e 671.6nm\u003c\/li\u003e\n\u003cli data-section-id=\"1e8mli3\" data-start=\"2069\" data-end=\"2090\"\u003e\n\u003cstrong data-start=\"2071\" data-end=\"2080\"\u003eOIII:\u003c\/strong\u003e 500.7nm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1fw79l4\" data-start=\"2091\" data-end=\"2127\"\u003e\n\u003cstrong data-start=\"2093\" data-end=\"2116\"\u003ePeak transmittance:\u003c\/strong\u003e \u003cstrong data-start=\"2117\" data-end=\"2125\"\u003e\u0026gt;90%\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1ffbmip\" data-start=\"2128\" data-end=\"2275\"\u003e\n\u003cstrong data-start=\"2130\" data-end=\"2151\"\u003eFWHM (bandwidth):\u003c\/strong\u003e\n\u003cul data-start=\"2156\" data-end=\"2275\"\u003e\n\u003cli data-section-id=\"o9upm\" data-start=\"2156\" data-end=\"2207\"\u003e\n\u003cstrong data-start=\"2158\" data-end=\"2167\"\u003e36mm:\u003c\/strong\u003e \u003cstrong data-start=\"2168\" data-end=\"2175\"\u003e4nm\u003c\/strong\u003e (Hα 4nm \/ SII 4nm \/ OIII 4nm)\u003c\/li\u003e\n\u003cli data-section-id=\"1cf0ztf\" data-start=\"2210\" data-end=\"2275\"\u003e\n\u003cstrong data-start=\"2212\" data-end=\"2227\"\u003e1.25\" \u0026amp; 2\":\u003c\/strong\u003e \u003cstrong data-start=\"2228\" data-end=\"2237\"\u003e6.5nm\u003c\/strong\u003e (Hα 6.5nm \/ SII 6.5nm \/ OIII 6.5nm)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1k3h7ly\" data-start=\"2276\" data-end=\"2318\"\u003e\n\u003cstrong data-start=\"2278\" data-end=\"2299\"\u003eOptical material:\u003c\/strong\u003e \u003cstrong data-start=\"2300\" data-end=\"2316\"\u003eQuartz glass\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"15fzbrk\" data-start=\"2319\" data-end=\"2386\"\u003e\n\u003cstrong data-start=\"2321\" data-end=\"2345\"\u003eCell\/frame material:\u003c\/strong\u003e \u003cstrong data-start=\"2346\" data-end=\"2364\"\u003eAluminum alloy\u003c\/strong\u003e (for mounted sizes)\u003c\/li\u003e\n\u003cli data-section-id=\"7o6zx8\" data-start=\"2387\" data-end=\"2459\"\u003e\n\u003cstrong data-start=\"2389\" data-end=\"2411\"\u003eSurface treatment:\u003c\/strong\u003e Double-sided high-precision optical polishing\u003c\/li\u003e\n\u003cli data-section-id=\"1bt9gv2\" data-start=\"2460\" data-end=\"2521\"\u003e\n\u003cstrong data-start=\"2462\" data-end=\"2485\"\u003eCoating technology:\u003c\/strong\u003e \u003cstrong data-start=\"2486\" data-end=\"2519\"\u003eIAD (Ion Assisted Deposition)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"eks5tl\" data-start=\"2522\" data-end=\"2620\"\u003e\n\u003cstrong data-start=\"2524\" data-end=\"2543\"\u003eCoating design:\u003c\/strong\u003e AR anti-reflection coating + quartz glass + precision cutoff coating layer\u003c\/li\u003e\n\u003cli data-section-id=\"4q8xmz\" data-start=\"2621\" data-end=\"2669\"\u003e\n\u003cstrong data-start=\"2623\" data-end=\"2654\"\u003eOptical density (blocking):\u003c\/strong\u003e \u003cstrong data-start=\"2655\" data-end=\"2667\"\u003eOD ≥ 5.0\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"atjz89\" data-start=\"2670\" data-end=\"2725\"\u003e\n\u003cstrong data-start=\"2672\" data-end=\"2689\"\u003eConstruction:\u003c\/strong\u003e Single-piece, glue-free structure\u003c\/li\u003e\n\u003cli data-section-id=\"1o6tqum\" data-start=\"2726\" data-end=\"2814\"\u003e\n\u003cstrong data-start=\"2728\" data-end=\"2777\"\u003eFilter wheel compatibility (common patterns):\u003c\/strong\u003e 7-hole 36mm, 8-hole 1.25\", 5-hole 2\"\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ToupTek","offers":[{"title":"1.25\"(6.5nm)","offer_id":51885443318080,"sku":"TT-SHO125inch6.5","price":260.0,"currency_code":"USD","in_stock":true},{"title":"36mm(4.0nm)","offer_id":51885443350848,"sku":"TT-SHO36mm4.0","price":431.0,"currency_code":"USD","in_stock":true},{"title":"2\" (6.5nm)","offer_id":51885443383616,"sku":"TT-SHO2inch6.5","price":458.0,"currency_code":"USD","in_stock":true},{"title":"2\"(4.0nm)","offer_id":51885448954176,"sku":"TT-SHO2inch4.0","price":539.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0717\/9904\/6464\/files\/sho_pro2.jpg?v=1777154214","url":"https:\/\/astroworldtelescopes.com\/products\/touptek-sho6-5nm-filters","provider":"Astroworld Telescopes","version":"1.0","type":"link"}