{"product_id":"idas-nb1-nebula-contrast-boost-filter-48mm-2","title":"IDAS NB1 Nebula Contrast Boost Filter - 48mm (2\")","description":"\u003cp\u003eIDAS NB1 Filter is designed to enhance the contrast of emission nebula, yet accommodate the filter spectral shift* when used with modern fast optical systems such as HyperStar.\u003c\/p\u003e\n\u003cp\u003eFeatures include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIdeal flat-top and moderate bandpass\u003c\/li\u003e\n\u003cli\u003eExcellent in-band transmission\u003c\/li\u003e\n\u003cli\u003eExtremely steep bandpass edges minimize internal reflections\u003c\/li\u003e\n\u003cli\u003eNear IR (NIR) is blocked up to 1100nm\u003c\/li\u003e\n\u003cli\u003eSize 48mm \u003c\/li\u003e\n\u003cli\u003e2.5mm thickness (parfocal with other IDAS LPS filters)\u003c\/li\u003e\n\u003cli\u003eIDAS-proprietary IGAD\/MBT\/UFP quality\u003c\/li\u003e\n\u003cli\u003eMade in Japan\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e* All interference filters are subject to a bandpass spectral shift which depends on the angle of incidence of the incoming light. IDAS NB filters are designed to accommodate the spectral shift of modern fast optical systems, including HyperStar.\u003c\/p\u003e\n\u003cp\u003eWhen placed in front of an optical system (such as a camera lens), the spectral shift is determined by the focal length of the optics and the size of the imaging sensor. For an APS-C sensor, up to a 50mm focal length can be accommodated. For a full-frame sized sensor, up to an 80mm focal length can be used.\u003c\/p\u003e\n\u003cp\u003eFor filters placed between the optical system and imaging sensor, the situation is more complex. IDAS NB filters are designed with modern fast optics in mind and can accommodate an angle of incidence of up to 14°.\u003c\/p\u003e","brand":"IDAS","offers":[{"title":"Default Title","offer_id":57203763118246,"sku":"con1787936573142","price":122.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0690\/2215\/4918\/files\/idas-nb1-nebula-contrast-boost-filter---48mm-2_1.jpg?v=1787936578","url":"https:\/\/www.marbleandmoss.shop\/products\/idas-nb1-nebula-contrast-boost-filter-48mm-2","provider":"My Store","version":"1.0","type":"link"}