{"product_id":"zwo-36mm-ha-sii-oiii-7nm-unmounted-filter-set-zwo-nb7nmd36","title":"ZWO 36mm Ha SII OIII 7nm Unmounted Filter Set - NB7NMD36","description":"\u003ch2 style=\"text-align: center;\"\u003e36mm SHO 7nm Filter Set\u003c\/h2\u003e\n\u003cp\u003eThis filter set includes the ZWO 7nm Ha, SII \u0026amp; OIII filters that are compatible with 36mm filter wheels.  Here's more information on each of the filters, all of which come in their own plastic storage case.\u003c\/p\u003e\n\u003ch3\u003eH-Alpha\u003c\/h3\u003e\n\u003cp\u003eThe ZWO H-Alpha filter has a bandpass of 7nm and passes light at 656nm wavelength, light transmission rate comes up to 80%. Best choice of narrowband H-alpha astrophotography filter for high-contrast imaging and revealing rich details of the nebula even in areas with strong light pollution, just prepare to experience the infinite fun with it!\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003eSII\u003c\/h3\u003e\n\u003cp\u003eThe ZWO narrowband S-II 7nm filter passes light at 672nm wavelength with a bandpass of 7nm which is designed for nebula observation . It is suitable for visual observation on most emission nebulae, planetary nebulae and supernova remnants, use it with H-alpha and OIII narrowband filters (SHO Set) for tricolor CCD astrophotography.\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003eOIII\u003c\/h3\u003e\n\u003cp\u003eThe ZWO narrowband O-III 7nm filter is designed for nebula observation allowing 7nm bandwidth of light centred on a wavelength of 500nm through, which corresponds to OIII emission lines, blocking out all other light. Adding the ZWO O-III Narrowband filter to your imaging collection will help you go beyond the RGB imaging and will help capture your favourite nebulas in a totally new light, no matter how polluted your skies may be!\u003c\/p\u003e\n\u003cp\u003eIt can reduce the transmission of certain wavelengths of light, specifically those produced by artificial light including mercury vapour, and both high and low pressure sodium vapour lights and the unwanted natural light caused by neutral oxygen emission in our atmosphere (i.e. skyglow).\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCreate the Hubble look by the combination of H-alpha, OIII-CCD and SII-CCD, such as the famous “Pillars of Creation” (M16 Eagle Nebula)\u003c\/li\u003e\n\u003cli\u003eNarrowband imaging with SHO set (H-alpha, OIII-CCD and SII-CCD) can be done with the moon up in heavy light pollution, so your equipment is not sitting dormant for several weeks\u003c\/li\u003e\n\u003cli\u003eUse the H-alpha filter to blend a black-and-white Ha image into RGB data to enhance structural detail while maintaining natural look.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eName: ZWO SHO 36mm Filter Set\u003c\/li\u003e\n\u003cli\u003eSize: D=36mm\u003c\/li\u003e\n\u003cli\u003eThickness: 2mm\u003c\/li\u003e\n\u003cli\u003eFWHM：7±0.5nm\u003c\/li\u003e\n\u003cli\u003eGlass Thickness 2.0+\/-0.03 mm (31mm\/36mm)\u003c\/li\u003e\n\u003cli\u003eFine-optically polished to ensure accurate 1\/4 wavefront over the both surfaces\u003c\/li\u003e\n\u003cli\u003eAbout 90% transmission at H-alpha line 656nm (H-Alpha filter )\u003c\/li\u003e\n\u003cli\u003eAbout 90% transmission at SII line 672nm (SII filter )\u003c\/li\u003e\n\u003cli\u003eAbout 90% transmission at major OIII line 500nm (OIII filter )\u003c\/li\u003e\n\u003cli\u003eInfrared wavelength 700-1100nm cut-off\u003c\/li\u003e\n\u003cli\u003e\u0026lt;0.1% transmission of off-band, OD3(Optical Density)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/astronomy-imaging-camera.com\/wp-content\/uploads\/NB-filters-TP.jpg\"\u003e\u003c\/p\u003e\n\u003c!----\u003e","brand":"ZWO","offers":[{"title":"Default Title","offer_id":41011262357617,"sku":"ZWO-NB7NMD36","price":432.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0851\/2766\/files\/36mm_narrowband_filter_set-sw_600x600_09c6cb7f-5b16-4be6-b210-74164226ee85.webp?v=1776459276","url":"https:\/\/khanscope.com\/en-fr\/products\/zwo-36mm-ha-sii-oiii-7nm-unmounted-filter-set-zwo-nb7nmd36","provider":"Khan Scope Centre","version":"1.0","type":"link"}