{"product_id":"zwo-36-mm-sii-7nm-narrowband-filter-sii7nmd36","title":"ZWO 36 mm SII 7nm Narrowband Filter - SII7NMD36","description":"\u003cp\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cspan\u003eThe ZWO SII 7nm Narrowband Filter passes light at the 672nm wavelength with a bandpass of 7nm for nebula observation. It is suitable for visual observation on most emission nebulae, planetary nebulae and supernova remnants.  Use this SII (Sulfur II) with H-alpha and Oxygen III narrowband filters (SHO Set) for tricolor CCD astrophotography.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis ZWO SII 7nm Filter has a diameter of 36 mm and comes unmounted.  It can be used in 36 mm filter wheels that accept filters that are 2mm thick.\u003c\/p\u003e\n\u003ch3\u003eHow to Use the ZWO SII 7nm 36 mm Filter...\u003c\/h3\u003e\n\u003cul class=\"wp-block-list\"\u003e\n\u003cli\u003eA Hubble look can be made 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\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eNarrowband imaging with SHO set (H-alpha, OIII-CCD and SII-CCD) can be done with the moon in the sky so your equipment is not sitting dormant until the next new moon.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSize: 36 mm Diameter\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eThickness: 2 mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eMounted: No, comes unmounted\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eFWHM：7±0.5nm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eFine-optically polished to ensure accurate 1\/4 wavefront over the both surfaces\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eAbout 90% transmission at SII line 672nm\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eInfrared wavelength 700-1100nm cut-off\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\u0026lt;0.1% transmission of off-band, OD3 (Optical Density)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ZWO","offers":[{"title":"Default Title","offer_id":41368500994161,"sku":"ZWO-SII7NMD36","price":152.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0851\/2766\/files\/SII_7nm_36mm_Filter.webp?v=1776459037","url":"https:\/\/khanscope.com\/fr-fr\/products\/zwo-36-mm-sii-7nm-narrowband-filter-sii7nmd36","provider":"Khan Scope Centre","version":"1.0","type":"link"}