{"product_id":"optolong-sho-3nm-narrowband-filters-kit-36mm","title":"Optolong SHO-3nm narrowband filters kit 36mm","description":"\u003cspan style=\"font-family: \" microsoft yahei rgb font-size:=\"\" background-color:=\"\"\u003eOptolong SHO-3nm filter kit includes SII3nm, H-Alpha3nm, and OIII3nm narrow band filters, generally working with astronomical monochrome cooling CCD and modified DSLR imaging in each single-channel. Corresponding with RGB channel (HA, OIII, SII), photographers can process Hubble images by astronomical post processing software. \u003c\/span\u003e\u003cdiv\u003e\u003cspan style=\"font-family: \" microsoft yahei font-size: background-color: rgb\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\n\u003cp style=\"overflow-wrap: break-word; margin: 0px; padding: 0px; font-family: \" microsoft yahei font-size: background-color: rgb\u003e\u003cstrong style=\"overflow-wrap: break-word; margin: 0px; padding: 0px;\"\u003e\u003cspan style=\"overflow-wrap: break-word; margin: 0px; padding: 0px; font-size: 18px;\"\u003e\u003cspan style=\"overflow-wrap: break-word; margin: 0px; padding: 0px; font-family: Arial, Helvetica, sans-serif;\"\u003eOptolong SHO-3nm Narrowband Filters Introduction\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"overflow-wrap: break-word; margin: 0px; padding: 0px; font-family: \" microsoft yahei font-size: background-color: rgb\u003e\u003cspan style=\"overflow-wrap: break-word; margin: 0px; padding: 0px;\"\u003e\u003cspan style=\"overflow-wrap: break-word; margin: 0px; padding: 0px; font-family: Arial, Helvetica, sans-serif;\"\u003eOptolong SHO-3nm filter kit includes SII 3nm, H-Alpha 3nm, and OIII 3nm narrow band filters, generally working with astronomical monochrome cooling CCD and modified DSLR imaging in each single-channel. Corresponding with RGB channel (HA, OIII, SII), photographers can process Hubble images by astronomical post processing software. \u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"overflow-wrap: break-word; margin: 0px; padding: 0px; font-family: \" microsoft yahei font-size: background-color: rgb\u003e\u003cspan style=\"overflow-wrap: break-word; margin: 0px; padding: 0px;\"\u003e\u003cspan style=\"overflow-wrap: break-word; margin: 0px; padding: 0px; font-family: Arial, Helvetica, sans-serif;\"\u003eExtra narrowband SIICCD3nm filter  (Sulfur II for CCD) is designed for nebula observation allowing 3nm bandwidth of light  centered on a wavelength of 672nm through, and reducing the transmission of certain wavelengths of light, specifically those produced by artificial light including mercury vapor, and both high and low pressure sodium vapor lights and the unwanted natural light caused by neutral oxygen emission in our atmosphere (i.e. skyglow)\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"overflow-wrap: break-word; margin: 0px; padding: 0px; font-family: \" microsoft yahei font-size: background-color: rgb\u003e\u003cspan style=\"overflow-wrap: break-word; margin: 0px; padding: 0px;\"\u003e\u003cspan style=\"overflow-wrap: break-word; margin: 0px; padding: 0px; font-family: Arial, Helvetica, sans-serif;\"\u003eH-Alpha 3nm filter is the popular narrowband filter allowing 3nm bandwidth of light centered on a wavelength of 656nm through, and reducing the transmission of certain wavelengths of light, specifically those produced by artificial light including mercury vapor, and both high and low pressure vapor lights and unwanted natural light caused by neutral oxygen emission in our atmosphere (i.e.skyglow). Better choice of narrowband H-Alpha astrophotography filter for highest contrast and revealing subtle nebula details. \u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"overflow-wrap: break-word; margin: 0px; padding: 0px; font-family: \" microsoft yahei font-size: background-color: rgb\u003e\u003cspan style=\"overflow-wrap: break-word; margin: 0px; padding: 0px;\"\u003e\u003cspan style=\"overflow-wrap: break-word; margin: 0px; padding: 0px; font-family: Arial, Helvetica, sans-serif;\"\u003eExtra narrowband OIII-CCD 3nm filter is designed for nebula observation allowing 3nm bandwidth of light centered on a wavelength of 500nm through, which corresponds to OIII emission line, and reducing the transmission of certain wavelengths of light, specifically those produced by artificial light including mercury vapor, and both high and low pressure sodium vapor lights and the unwanted natural light caused by neutral oxygen emission in our atmosphere (i.e.skyglow).\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"overflow-wrap: break-word; margin: 0px; padding: 0px; font-family: \" microsoft yahei font-size: background-color: rgb\u003e\u003cspan style=\"overflow-wrap: break-word; margin: 0px; padding: 0px;\"\u003e\u003cspan style=\"overflow-wrap: break-word; margin: 0px; padding: 0px; font-family: Arial, Helvetica, sans-serif;\"\u003eOIII emits 495.9nm and 500.7nm and it is a blue-green colored filter. Many of images of planetary nebula and supernoval remnants are taken only with H-Alpha and OIIII filters. They show great structural details, but have natural colors, looking like an RGB image.\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"overflow-wrap: break-word; margin: 0px; padding: 0px; font-family: \" microsoft yahei font-size: background-color: rgb\u003e \u003c\/p\u003e\n\u003cp style=\"overflow-wrap: break-word; margin: 0px; padding: 0px; font-family: \" microsoft yahei font-size: background-color: rgb\u003e\u003cspan style=\"overflow-wrap: break-word; margin: 0px; padding: 0px;\"\u003e\u003cstrong style=\"overflow-wrap: break-word; margin: 0px; padding: 0px;\"\u003e\u003cspan style=\"overflow-wrap: break-word; margin: 0px; padding: 0px; font-family: Arial, Helvetica, sans-serif;\"\u003eFeatures:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"overflow-wrap: break-word; margin: 0px; padding: 0px; font-family: \" microsoft yahei font-size: background-color: rgb\u003e\u003cspan style=\"overflow-wrap: break-word; margin: 0px; padding: 0px;\"\u003e\u003cspan style=\"overflow-wrap: break-word; margin: 0px; padding: 0px; font-family: Arial, Helvetica, sans-serif;\"\u003eGive you higher contrast and greater detailed viewing;\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"overflow-wrap: break-word; margin: 0px; padding: 0px; font-family: \" microsoft yahei font-size: background-color: rgb\u003e\u003cspan style=\"overflow-wrap: break-word; margin: 0px; padding: 0px;\"\u003e\u003cspan style=\"overflow-wrap: break-word; margin: 0px; padding: 0px; font-family: Arial, Helvetica, sans-serif;\"\u003eDecrease background noise and improve the contrast of objects;\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"overflow-wrap: break-word; margin: 0px; padding: 0px; font-family: \" microsoft yahei font-size: background-color: rgb\u003e\u003cspan style=\"overflow-wrap: break-word; margin: 0px; padding: 0px;\"\u003e\u003cspan style=\"overflow-wrap: break-word; margin: 0px; padding: 0px; font-family: Arial, Helvetica, sans-serif;\"\u003eIncrease the faint nebula signal and make it to be brightness;\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"overflow-wrap: break-word; margin: 0px; padding: 0px; font-family: \" microsoft yahei font-size: background-color: rgb\u003e\u003cspan style=\"overflow-wrap: break-word; margin: 0px; padding: 0px;\"\u003e\u003cspan style=\"overflow-wrap: break-word; margin: 0px; padding: 0px; font-family: Arial, Helvetica, sans-serif;\"\u003eWith narrow band filters kit, you are able to process a Hubble image;\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"overflow-wrap: break-word; margin: 0px; padding: 0px; font-family: \" microsoft yahei font-size: background-color: rgb\u003e\u003cspan style=\"overflow-wrap: break-word; margin: 0px; padding: 0px;\"\u003e\u003cspan style=\"overflow-wrap: break-word; margin: 0px; padding: 0px; font-family: Arial, Helvetica, sans-serif;\"\u003eThrough the optimization of the substrate and upgrading of coating technology.\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"overflow-wrap: break-word; margin: 0px; padding: 0px; font-family: \" microsoft yahei font-size: background-color: rgb\u003e \u003c\/p\u003e\n\u003cp style=\"overflow-wrap: break-word; margin: 0px; padding: 0px; font-family: \" microsoft yahei font-size: background-color: rgb\u003e \u003c\/p\u003e\n\u003cp style=\"overflow-wrap: break-word; margin: 0px; padding: 0px; font-family: \" microsoft yahei font-size: background-color: rgb\u003e \u003c\/p\u003e\n\u003cp style=\"overflow-wrap: break-word; margin: 0px; padding: 0px; font-family: \" microsoft yahei font-size: background-color: rgb\u003e\u003cstrong style=\"overflow-wrap: break-word; margin: 0px; padding: 0px;\"\u003e\u003cspan style=\"overflow-wrap: break-word; margin: 0px; padding: 0px; font-size: 18px;\"\u003e\u003cspan style=\"overflow-wrap: break-word; margin: 0px; padding: 0px; font-family: Arial, Helvetica, sans-serif;\"\u003eReference Spectrum\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"overflow-wrap: break-word; margin: 0px; padding: 0px; font-family: \" microsoft yahei font-size: background-color: rgb\u003e \u003c\/p\u003e\n\u003cp style=\"overflow-wrap: break-word; margin: 0px; padding: 0px; font-family: \" microsoft yahei font-size: background-color: rgb text-align: center\u003e\u003cspan style=\"overflow-wrap: break-word; margin: 0px; padding: 0px; font-family: Arial, Helvetica, sans-serif;\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/56095a94c3cebfd0ebdc80f423d27c58_5c02a12e-f3f7-4b80-b5e0-d2f86e183d9a.png?v=1766561315\" style=\"overflow-wrap: break-word; margin: 0px; padding: 0px; border: none; vertical-align: middle; max-width: 100%; height: 462px; width: 1000px;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"overflow-wrap: break-word; margin: 0px; padding: 0px; font-family: \" microsoft yahei font-size: background-color: rgb text-align: center\u003e\u003cspan style=\"overflow-wrap: break-word; margin: 0px; padding: 0px;\"\u003e\u003cspan style=\"overflow-wrap: break-word; margin: 0px; padding: 0px; font-family: Arial, Helvetica, sans-serif;\"\u003e?This curve is only for reference, and is not used as the final product data.\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"overflow-wrap: break-word; margin: 0px; padding: 0px; font-family: \" microsoft yahei font-size: background-color: rgb\u003e \u003c\/p\u003e\n\u003cp style=\"overflow-wrap: break-word; margin: 0px; padding: 0px; font-family: \" microsoft yahei font-size: background-color: rgb\u003e\u003cspan style=\"overflow-wrap: break-word; margin: 0px; padding: 0px;\"\u003e\u003cspan style=\"overflow-wrap: break-word; margin: 0px; padding: 0px; font-family: Arial, Helvetica, sans-serif;\"\u003e\u003cstrong style=\"overflow-wrap: break-word; margin: 0px; padding: 0px;\"\u003eHow to read the chart?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"overflow-wrap: break-word; margin: 0px; padding: 0px; font-family: \" microsoft yahei font-size: background-color: rgb\u003e\u003cspan style=\"overflow-wrap: break-word; margin: 0px; padding: 0px;\"\u003e\u003cspan style=\"overflow-wrap: break-word; margin: 0px; padding: 0px; font-family: Arial, Helvetica, sans-serif;\"\u003e?The horizontal axis is the Wavelength in Nanometers(nm).\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"overflow-wrap: break-word; margin: 0px; padding: 0px; font-family: \" microsoft yahei font-size: background-color: rgb\u003e\u003cspan style=\"overflow-wrap: break-word; margin: 0px; padding: 0px;\"\u003e\u003cspan style=\"overflow-wrap: break-word; margin: 0px; padding: 0px; font-family: Arial, Helvetica, sans-serif;\"\u003e?The vertical axis is transmission in %.\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"overflow-wrap: break-word; margin: 0px; padding: 0px; font-family: \" microsoft yahei font-size: background-color: rgb\u003e\u003cspan style=\"overflow-wrap: break-word; margin: 0px; padding: 0px;\"\u003e\u003cspan style=\"overflow-wrap: break-word; margin: 0px; padding: 0px; font-family: Arial, Helvetica, sans-serif;\"\u003e?The BLUE line shows the transmission of OIII3nm.The H-Alpha 3nm line is shown in GREEN. And the SII 3nm filter line is shown in RED. \u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Optolong Filters","offers":[{"title":"Default Title","offer_id":44013739343983,"sku":"O-SHO-3-36","price":1369.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/Optolong-sho-filter-kit-36-3nm-produkt__29193.jpg?v=1766561317","url":"https:\/\/ontariotelescope.com\/products\/optolong-sho-3nm-narrowband-filters-kit-36mm","provider":"Ontario Telescope and Accessories","version":"1.0","type":"link"}