{"title":"IDAS Astronomy Filters","description":"\u003cp data-start=\"120\" data-end=\"420\"\u003e\u003cstrong data-start=\"120\" data-end=\"161\"\u003e\u003cspan class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"\u003e\u003cspan class=\"whitespace-normal\"\u003eIDAS\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e produces high-quality light pollution, narrowband, and specialty filters designed for astrophotography. Known for precise spectral control and excellent color balance, IDAS filters help reduce unwanted light while preserving natural star colors and contrast.\u003c\/p\u003e","products":[{"product_id":"idas-nb1-nebula-booster-filter-h-alpha-h-beta-oiii","title":"IDAS NB1 Nebula Booster Filter H-alpha, H-beta \u0026 OIII","description":"\u003ch2\u003eIDAS NB1 Nebula Booster Filter H-alpha, H-beta \u0026amp; OIII\u003c\/h2\u003e\nThe IDAS NB1 Nebula Booster Filter is a triple line-pass filter (H-alpha, H-beta \u0026amp; OIII) which can be used with one-shot color (OSC) cameras such as DSLR's or astronomical OSC cameras. Passing the red Hα+NII and the green-blue Hβ+OIII lines, the NB1 filter enhances the contrast of emission line nebulae without the time-consuming use of single-band filters. IDAS NB Filters are designed to enhance the contrast of emission nebula, yet accommodate the filter spectral shift*when used with modern fast optical systems. 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. When placed in front of an optical system, 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. For 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°.\n\u003ch4\u003e\u003c\/h4\u003e\n\u003ch4\u003eFeatures\u003cbr\u003e\n\u003c\/h4\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\u003eAvailable in 52mm and 48mm sizes\u003c\/li\u003e\n\u003cli\u003e2.5mm thickness (parfocal with other IDAS LPS filters)\u003c\/li\u003e\n\u003cli\u003eIDAS-proprietary IGAD\/MBT\/UFPquality\u003c\/li\u003e\n\u003cli\u003eMade in Japan\u003c\/li\u003e\n\u003c\/ul\u003e\nMore on other members of the NB filter family...\n\u003ctable cellspacing=\"0\" cellpadding=\"0\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003eEmission Lines\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003eNB1\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003eTriple - Hβ+OIII, Hα\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003eNB2\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003eDual - OIII, Hα\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003eNB3\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003eDual - OIII, SII\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003c\/h3\u003e\n\u003ch4\u003eIDAS Filter Technology\u003c\/h4\u003e\nA chain is only as good as its weakest link. This applies as well to an optical system such as a telescope\/filter\/imager system. With this in mind, IDAS filters are manufactured using unique technologies that result in quality that meets or exceeds that of the rest of your optical imaging system:\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eIGAD (Ion-Gun Assist Deposition)\u003c\/b\u003e This coating technology was originally developed for the optical communications field where long-term stability (\u0026gt;25 years) over harsh field conditions is required.IDAS is the first manufacturer to apply this technology to astronomical filters. This results in superior filters with robust coatings and long-term spectral stability even under temperature and humidity extremes. This stability is especially important for bandpass curves with steep slopes such as H-alpha, LPS filters, and other narrow bandpass filters. IGAD filters virtually eliminate bandpass shifts from the +\/-3 or 4nm typical of standard coating filters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMBT (Multi Band-pass Technology)\u003c\/b\u003e This is technology originally developed for biomedical microscopes, but improved by IDAS by combining it the IGAD hard-coating technology described above. The excellent filter responses possible with this technology allows IDAS to create very complicated filters for astronomical use such as the unique LPS filter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eUFP (Ultra Fine Polish) Finishing\u003c\/b\u003e IDAS filters are polished twice as long as is typical for optical glass. In combination with the use of high-quality substrate glass, no scratches, bubbles, or other defects are visible even under microscopic inspection.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\n\u003ch3\u003eIn the Box\u003cbr\u003e\n\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eNB1 Filter\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eManual \u0026amp; Warranty\u003c\/h3\u003e\n\u003cp\u003eIDAS 3-Year Warranty\u003c\/p\u003e","brand":"IDAS","offers":[{"title":"48mm mounted (2mm thickness)","offer_id":45659500839141,"sku":"IDA-NB1-48ST2","price":245.0,"currency_code":"CAD","in_stock":true},{"title":"ZWO Cameras","offer_id":43673497665765,"sku":"IDA-NB1-ZF","price":245.0,"currency_code":"CAD","in_stock":true},{"title":"DS for use with IDAS AD42-DSS","offer_id":47818781491429,"sku":"IDA-NB1-DS","price":297.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/products\/IDAS-NB1-Nebula-Booster-Filter-1.webp?v=1668192318"},{"product_id":"idas-heuib-ii-h-alpha-enhanced-uv-ir-cut-filter","title":"IDAS HEUIB-II H-alpha Enhanced UV\/IR Cut Filter","description":"\u003ch2\u003eIDAS HEUIB-II H-alpha Enhanced UV\/IR Cut Filter\u003c\/h2\u003e\n\u003cdiv\u003eThe IDAS HEUIB-II (\u003cstrong\u003eH\u003c\/strong\u003e-α \u003cstrong\u003eE\u003c\/strong\u003enhanced \u003cstrong\u003eU\u003c\/strong\u003eV \u003cstrong\u003eI\u003c\/strong\u003eR \u003cstrong\u003eB\u003c\/strong\u003elocking) filter is designed for enhanced spectrum DSLR's and one-shot color CCD astronomical cameras.\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003eBesides removing the IR and UV ends of the spectrum which are often out of focus in refractive optics, it isolates the common H-alpha line relative to the surrounding extreme red end of the spectrum, making it easy to bring out the faint H-alpha emission nebulosity of astronomical photos, yet retain the background color balance of broadband photos. Some comparison shots taken with the enhanced Canon 6DH (standard Canon UV\/IR blocking filter vs. HEUIB-II filter) show a clear difference both in background sky color balance and contrast of H-alpha nebulosity in the extremely faint object IC1396. Note the good background color balance as shown in the histograms of the individual color channels of the HEUIB-II filtered image. \u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cimg style=\"float: none;\" height=\"252\" width=\"445\" src=\"https:\/\/www.sciencecenter.net\/hutech\/idas\/heuib-2\/heuib-ii-s.jpg\" alt=\"IDAS HEUIB-II filter bandpass plot\"\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003eThe HEUIB-II filter also returns normal daylight color balance to spectrum-enhanced cameras as can be seen in this photo at right taken with normal DSLR auto-white-balance (AWB).\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch4\u003eIDAS Filter Technology\u003c\/h4\u003e\n\u003cp\u003eA chain is only as good as its weakest link. This applies as well to an optical system such as a telescope\/filter\/imager system. With this in mind, IDAS filters are manufactured using unique technologies that result in quality that meets or exceeds that of the rest of your optical imaging system:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eIGAD (Ion-Gun Assist Deposition)\u003c\/b\u003e This coating technology was originally developed for the optical communications field where long-term stability (\u0026gt;25 years) over harsh field conditions is required. IDAS is the first manufacturer to apply this technology to astronomical filters. This results in superior filters with robust coatings and long-term spectral stability even under temperature and humidity extremes. This stability is especially important for bandpass curves with steep slopes such as H-alpha, LPS filters, and other narrow bandpass filters. IGAD filters virtually eliminate bandpass shifts from the +\/-3 or 4nm typical of standard coating filters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMBT (Multi Band-pass Technology)\u003c\/b\u003e This is technology originally developed for biomedical microscopes, but improved by IDAS by combining it the IGAD hard-coating technology described above. The excellent filter responses possible with this technology allows IDAS to create very complicated filters for astronomical use such as the unique LPS filter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eUFP (Ultra Fine Polish) Finishing\u003c\/b\u003e IDAS filters are polished twice as long as is typical for optical glass. In combination with the use of high-quality substrate glass, no scratches, bubbles, or other defects are visible even under microscopic inspection.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eAdditional Features:\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eIdeal precision prime focus T-Adapter for your astro imaging\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSCA Provides 360 deg. rubber square rings contact for the most secure and reliable adaption in your focuser\u003c\/li\u003e\n\u003cli\u003eSCA Brings your Camera to the Closest Optical Axis in the Drawtube\/Visual back for BEST Imaging Result\u003c\/li\u003e\n\u003cli\u003eSCA Eliminates Drawtube\/Visual Back Slop\u003c\/li\u003e\n\u003cli\u003eSCA Eliminates unstable locking from thumbscrew or unified compression ring\u003c\/li\u003e\n\u003cli\u003eSCA Accepts the Imperfection of a Drawtube\/Visual Back\u003c\/li\u003e\n\u003cli\u003eShort SCA Profile Prevents Oscillation\u003c\/li\u003e\n\u003cli\u003eSCA Damps Vibration\u003c\/li\u003e\n\u003cli\u003eSCA Accepts Filter Thread device.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specification\u003cbr\u003e\n\u003c\/h3\u003e\n\u003ctable border=\"0\" cellspacing=\"0\"\u003e\n\u003ccolgroup width=\"174\"\u003e\u003c\/colgroup\u003e \u003ccolgroup width=\"199\"\u003e\u003c\/colgroup\u003e \u003ccolgroup width=\"464\"\u003e\u003c\/colgroup\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\" align=\"center\" height=\"18\"\u003e\u003cb\u003e\u003cspan style=\"color: #000000;\"\u003eType\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\" align=\"center\"\u003e\u003cb\u003e\u003cspan style=\"color: #000000;\"\u003eModel\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\" align=\"center\"\u003e\u003cb\u003e\u003cspan style=\"color: #000000;\"\u003eUse \u0026amp; Thickness\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\" align=\"center\" height=\"33\"\u003e\u003cspan style=\"color: #000000;\"\u003e\u003ca href=\"https:\/\/idas.uno\/space\/en\/IDAS\/frames\/m48.htm\"\u003eM48\u003c\/a\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\" align=\"center\"\u003e\u003cspan style=\"color: #000000;\"\u003eHEUIB-II 48S \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\" align=\"center\"\u003e\u003cspan style=\"color: #000000;\"\u003eM48mm P0.75mm, substrate thickness 2.5mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\" align=\"center\" height=\"33\"\u003e\u003cspan style=\"color: #000000;\"\u003e\u003ca href=\"https:\/\/idas.uno\/space\/en\/IDAS\/frames\/m48.htm\"\u003eM48\u003c\/a\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\" align=\"center\"\u003e\u003cspan style=\"color: #000000;\"\u003eHEUIB-II 48ST2 \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\" align=\"center\"\u003e\u003cspan style=\"color: #000000;\"\u003eM48mm P0.75mm, substrate thickness 2.0mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\" align=\"center\" height=\"33\"\u003e\u003cspan style=\"color: #000000;\"\u003e\u003ca href=\"https:\/\/idas.uno\/space\/en\/IDAS\/frames\/m52.htm\"\u003eM52\u003c\/a\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\" align=\"center\"\u003e\u003cspan style=\"color: #000000;\"\u003eHEUIB-II 52ST2 \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\" align=\"center\"\u003e\u003cspan style=\"color: #000000;\"\u003eM52mm P0.75mm, substrate thickness 2.0mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\" align=\"center\" height=\"18\"\u003e\u003cspan style=\"color: #000000;\"\u003eDi2\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\" align=\"center\"\u003e\u003cspan style=\"color: #000000;\"\u003eHEUIB-II Di2 \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\" align=\"center\"\u003e\u003cspan style=\"color: #000000;\"\u003edrops in AD19.4 drop-in mount adapter\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\" align=\"center\" height=\"33\"\u003e\u003cspan style=\"color: #000000;\"\u003eZF\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\" align=\"center\"\u003e\u003cspan style=\"color: #000000;\"\u003eHEUIB-II DRE \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\" align=\"center\"\u003e\u003cspan style=\"color: #000000;\"\u003efor use with ZWO cams (fb 6.5mm) and also IDAS AD19.4 drop-in filter mount\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\" align=\"center\" height=\"62\"\u003e\u003cspan style=\"color: #000000;\"\u003eDRE\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\" align=\"center\"\u003e\u003cspan style=\"color: #000000;\"\u003eHEUIB-II ZF \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\" align=\"center\"\u003e\u003cspan style=\"color: #000000;\"\u003efor Canon EF-EOSR drop-in mount adapter \u0026amp; Meike MK-EFTR-C (EF-R) \u0026amp; MK-EFTE-C (EF-E) drop-in mount adapters - Details at:\u003ca href=\"https:\/\/idas.uno\/space\/en\/support\/DRE-manual-en.pdf\"\u003e IDAS DRE Filter\u003c\/a\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003eIn the Box\u003cbr\u003e\n\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eIdas HEUIB-II Filter at selected size :\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eM48 S\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eM48 ST2\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eM52\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDi2\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eZF\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eDRE\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eManual \u0026amp; Warranty\u003c\/h3\u003e\n\u003cp\u003eIDAS 3-Year Warranty\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e","brand":"IDAS","offers":[{"title":"48mm (2 mm thickness)","offer_id":43673215959269,"sku":"IDA-HEUIBII-48ST2","price":245.0,"currency_code":"CAD","in_stock":true},{"title":"52mm (2 mm thickness)","offer_id":43673216024805,"sku":"IDA-HEUIBII-52ST2","price":277.0,"currency_code":"CAD","in_stock":true},{"title":"Di2 drop in filter","offer_id":43673215992037,"sku":"IDA-HEUIBII-Di2","price":277.0,"currency_code":"CAD","in_stock":true},{"title":"DRT for EF-EOSR","offer_id":43673216057573,"sku":"IDA-HEUIBII-DRT","price":347.0,"currency_code":"CAD","in_stock":true},{"title":"ZF for ZWO Cameras","offer_id":43673216090341,"sku":"IDA-HEUIBII-ZF","price":245.0,"currency_code":"CAD","in_stock":true},{"title":"DZ for use with ZWO cams","offer_id":47817048162533,"sku":"IDA-HEUIBII-DZ","price":297.0,"currency_code":"CAD","in_stock":true},{"title":"DS for use with IDAS AD42-DS","offer_id":47817048621285,"sku":"IDA-HEUIBII-DS","price":297.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/idas-heuib-ii-h-alpha-enhanced-uvir-cut-filter-astronomy-plus.webp?v=1690484525"},{"product_id":"idas-lps-d3-filter","title":"IDAS NGS1 (ex LPS-D3) filter","description":"\u003ch2\u003eIDAS NGS1 \/ LPS-D3 filter\u003c\/h2\u003e\n\u003cp\u003eIDAS LPS-D3(formerly NGS1) filters enhance the contrast of astronomical emission nebulae against a sky with both man-made and natural* sky glow sources, yet preserve color balance of broadband objects such as galaxies. As with other IDAS interference filters, the bandpasses are designed to accommodate the steep ray angles of fast optical systems. \u003cimg src=\"https:\/\/www.sciencecenter.net\/hutech\/idas\/ngs1\/LPS-D3-measured.jpg\" width=\"512\" height=\"335\"\u003e \u003cimg src=\"https:\/\/www.sciencecenter.net\/hutech\/idas\/ngs1\/LPS-D3.jpg\" width=\"513\" height=\"325\"\u003e\u003c\/p\u003e\n\u003ch3\u003eTechnical Specification\u003cbr\u003e\n\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eIdeal flat-top and moderate bandpass\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eExcellent in-band transmission\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eSteep bandpass edges minimize internal reflections\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eNear IR (NIR) is blocked up to 1200nm\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eAvailable in 52mm and 48mm sizes\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e2.5mm thickness (parfocal with other IDAS LPS filters)\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eIDAS-proprietary IGAD\/MBT\/UFP quality\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eMade in Japan\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eIn the Box\u003cbr\u003e\n\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eLPS-D3 Filter\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eManual \u0026amp; Warranty\u003c\/h3\u003e\n\u003cp\u003eIDAS 3-Year Warranty\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"IDAS","offers":[{"title":"48mm mounted","offer_id":43673368625381,"sku":"IDA-LPS-D3-48ST2","price":245.0,"currency_code":"CAD","in_stock":true},{"title":"52mm mounted","offer_id":43673368690917,"sku":"IDA-LPS-D3-52ST2","price":277.0,"currency_code":"CAD","in_stock":true},{"title":"Di2 mounted","offer_id":43673368723685,"sku":"IDA-LPS-D3-DI2","price":277.0,"currency_code":"CAD","in_stock":true},{"title":"DRT for Canon EF-EOSR","offer_id":43673368756453,"sku":"IDA-LPS-D3-DRT","price":347.0,"currency_code":"CAD","in_stock":true},{"title":"DZ to use with the ZWO M54 Filter Drawer","offer_id":43673368789221,"sku":"IDA-LPS-D3-DZ","price":297.0,"currency_code":"CAD","in_stock":true},{"title":"ZF for use with ZWO cams","offer_id":47817078636773,"sku":"IDA-LPS-D3-ZF","price":245.0,"currency_code":"CAD","in_stock":true},{"title":"DS for IDAS AD42-DS","offer_id":47819598299365,"sku":"IDA-LPS-D3-DS","price":297.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/idas-lps-d3-filter-replaced-by-lps-c1-astronomy-plus.png?v=1690487661"},{"product_id":"idas-sho-set","title":"IDAS SHO Narrowband Set","description":"\u003ch2 data-mce-fragment=\"1\"\u003eIDAS SHO Narrowband Set (SII, H-a \u0026amp; OIII)\u003c\/h2\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cp\u003eIDAS H-alpha 6.8nm. OIII 6.0nm and SII 6.3nm Sets. Available at various sizes and classifications – STD or UHS.\u003c\/p\u003e\n\u003cp\u003eIDAS is a trademark of ICAS Enterprise, Japan\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specification\u003cbr\u003e\n\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eSTD 3mm thick 50.8 CFW\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eSTD 3mm thick 36mm unmounted\u003c\/li\u003e\n\u003cli\u003eSTD 2.5mm thick 48mm(2\") mounted\u003c\/li\u003e\n\u003cli\u003eUHS 2.5mm thick 48mm(2\") mounted\u003c\/li\u003e\n\u003cli\u003eUHS 3mm thick 48mm(2\") mounted\u003c\/li\u003e\n\u003cli\u003eUHS 2.5mm thick 52mm mounted\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"entrytext\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch3\u003eIn the Box\u003cbr\u003e\n\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eSHO Filters set\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e(H-alpha, Oxygen III and Sulfur II filters)\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eManual \u0026amp; Warranty\u003c\/h3\u003e\n\u003cp\u003eIDAS 3-Year Warranty\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"IDAS","offers":[{"title":"Standard \/ 36mm unmounted (Standard Only)","offer_id":43673845760229,"sku":"IDA-SHO30STD-36","price":1182.0,"currency_code":"CAD","in_stock":false},{"title":"Standard \/ 2\"(48mm mounted \/ 2.5mm Thick)","offer_id":43673845792997,"sku":"IDA-SHO25STD-48","price":1395.0,"currency_code":"CAD","in_stock":true},{"title":"Standard \/ 50.8mm CFW (STD)","offer_id":43673965986021,"sku":"IDA-SHO30STD-50.8","price":1395.0,"currency_code":"CAD","in_stock":false},{"title":"Ultra High Speed \/ 2\" (48mm mounted \/ 2.5mm Thick)","offer_id":43673845891301,"sku":"IDA-SHO25UHS-48","price":1395.0,"currency_code":"CAD","in_stock":false},{"title":"Ultra High Speed \/ 2\" (48mm mounted \/ 3mm Thick)","offer_id":43673994232037,"sku":"IDA-SHO30UHS-48","price":1395.0,"currency_code":"CAD","in_stock":false},{"title":"Ultra High Speed \/ 52mm mounted (UHS)","offer_id":43673845924069,"sku":"IDA-SHO30UHS-52","price":1395.0,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/idas-sho-narrowband-set-astronomy-plus.webp?v=1690488534"},{"product_id":"idas-odw-full-spectrum-clear-ar-coated","title":"IDAS ODW Full Spectrum (Clear) Filter AR-coated","description":"\u003ch1 class=\"product_title entry-title\"\u003eIDAS Full Spectrum (Clear) AR-coated\u003c\/h1\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cem\u003e\u003cstrong\u003eFull Spectrum AR-coated filter\u003c\/strong\u003e\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003e\u003cstrong\u003ePar-focal with all IDAS 48mm and 52mm, except QRO Series\u003c\/strong\u003e\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003e\u003cstrong\u003eIDAS is a trademark of ICAS Enterprise Japan\u003c\/strong\u003e\u003c\/em\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIDAS ODW Full Spectrum Filter is the perfect choice for astrophotography enthusiasts looking for a par-focal filter with exceptional color and clarity. This AR-coated filter is designed to work with all IDAS 48mm and 52mm filters, except the QRO Series. The high-quality construction and precise tolerances ensure true-to-life color accuracy and stunning sharpness.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cp\u003eNo Specifications\u003c\/p\u003e\n\u003ch3\u003eIn The Box\u003c\/h3\u003e\n\u003cp\u003eOWD Filter\u003c\/p\u003e\n\u003ch3\u003eManuals \u0026amp; Warranty\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/istronomyplus.com\/pages\/idas-warranty\" target=\"_blank\"\u003eIDAS 3-Year Warranty\u003c\/a\u003e\u003c\/p\u003e","brand":"IDAS","offers":[{"title":"ODW 48mm mounted (2.5mm thickness)","offer_id":43932819554533,"sku":"IDA-ODW-48S","price":151.0,"currency_code":"CAD","in_stock":true},{"title":"ODW 48mm mounted (2mm thickness)","offer_id":45659587674341,"sku":"IDA-ODW-48ST2","price":151.0,"currency_code":"CAD","in_stock":true},{"title":"ODW 52mm mounted","offer_id":43932819587301,"sku":"IDA-ODW-52ST2","price":155.0,"currency_code":"CAD","in_stock":true},{"title":"ODW Di2 mounted","offer_id":44163123118309,"sku":"IDA-ODW-Di2","price":210.0,"currency_code":"CAD","in_stock":true},{"title":"ODW DRT for Canon EF-EOSR","offer_id":45659587707109,"sku":"IDA-ODW-DRT","price":210.0,"currency_code":"CAD","in_stock":false},{"title":"DS for IDAS AD42-DS","offer_id":47819606196453,"sku":"IDA-ODW-DS","price":155.0,"currency_code":"CAD","in_stock":true},{"title":"DZ for ZWO FD-M54-II","offer_id":47819615469797,"sku":"IDA-ODW-DZ","price":210.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/idas-odw-full-spectrum-clear-filter-ar-coated-astronomy-plus.webp?v=1690489001"},{"product_id":"idas-gnb-galaxy-nebula-filters","title":"IDAS GNB Galaxy \u0026 Nebula Filters","description":"\u003ch2\u003eIDAS GNB Galaxy \u0026amp; Nebula Filters\u003cbr\u003e\n\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eCapturing Ha \u0026amp; OIII emission lines as well as the galaxy’s broadband signal in NIR at same time\u003c\/li\u003e\n\u003cli\u003eAvailable at M28.6(1.25″) and ZF (for ZWO, QHY \u0026amp; Player One)\u003c\/li\u003e\n\u003cli\u003eBest match with Player One Uranus-C and Neptune-C II\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan class=\"style88\"\u003eThe IDAS GNB filter passes through the Ha and OIII regions in the same manner as of the IDAS NBZ to suppress light pollutions in the visible light regions. Unlike any other filters available in the market, the GNB at the same time passes through the near infrared region intended for shooting galaxies that cannot be shot with any comventional nebula filters.\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003eThe idea of designing this filter is based on the fact that the near infrared region can be hardly affected by artifical light pollution sources.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eNotes:\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eWe recommend the use with a NIR-enhanced sensor such as IMX585 and IMX464 especially where the GNB is used in a heavly light-polluted location.\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eThe GNB filter will enhance the colorfulness of galaxies when used with a conventional sensor (such as IMX294).\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan class=\"style3\"\u003en.b. on halos:\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eOptical filters such as IDAS GNB and DTD utilizing infrared tend to cause haloing in the NUV and NIR regions. This is because the anti-reflection properties of off-the-shelf cameras' optical systems (oiptical window and sensor cover glass) are optimized for the visible spectrum only, not for the NIR region. Thus, haoling at the camera end in the unoptimized region becomes more apparent, coupled with haloing from the filter itself.\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eHere is a rough estimation of the magnitude of haoling where the haloing maginute of NBZ (NBZex) is counted as 1:\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eGNB + IMX294 sensor results in 8.0 times\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eGNB + IMX585 sensor results in 6.3 times\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/gnb_imx294.png?v=1717010440\" width=\"1314\" height=\"768\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eM33 Shot with GNB + IMX294\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/M33GNB1m-avr97cc.png?v=1717007617\" width=\"1388\" height=\"910\" data-mce-src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/M33GNB1m-avr97cc.png?v=1717007617\"\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; height: 235.125px;\" border=\"0\" cellspacing=\"0\"\u003e\n\u003ccolgroup width=\"266\"\u003e\u003c\/colgroup\u003e \u003ccolgroup width=\"255\" span=\"2\"\u003e\u003c\/colgroup\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 33.7289%; height: 19.5938px;\" valign=\"bottom\" align=\"center\" height=\"18\"\u003e\u003cb\u003e\u003cspan style=\"color: #000000;\"\u003eDiameter \u0026amp; Use\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 32.4583%; height: 19.5938px;\" valign=\"bottom\" align=\"center\"\u003e\u003cb\u003e\u003cspan style=\"color: #000000;\"\u003eSubstrat thickness\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 31.3907%; height: 19.5938px;\" valign=\"bottom\" align=\"center\"\u003e\u003cb\u003e\u003cspan style=\"color: #000000;\"\u003eModel name\u003c\/span\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 33.7289%; height: 19.5938px;\" valign=\"middle\" align=\"center\" height=\"18\"\u003e\u003cspan style=\"color: #000000;\"\u003e28,6 mm\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 32.4583%; height: 19.5938px;\" valign=\"middle\" align=\"center\"\u003e\u003cspan style=\"color: #000000;\"\u003e2 mm\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 31.3907%; height: 19.5938px;\" valign=\"middle\" align=\"center\"\u003e\u003cspan style=\"color: #000000;\"\u003eGNB-28.6 \u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 33.7289%; height: 19.5938px;\" valign=\"middle\" align=\"center\" height=\"18\"\u003e\u003cspan style=\"color: #000000;\"\u003e48 mm\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 32.4583%; height: 19.5938px;\" valign=\"middle\" align=\"center\"\u003e\u003cspan style=\"color: #000000;\"\u003e2mm\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 31.3907%; height: 19.5938px;\" valign=\"middle\" align=\"center\"\u003e\u003cspan style=\"color: #000000;\"\u003eGNB-48ST2\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 33.7289%; height: 19.5938px;\" valign=\"middle\" align=\"center\" height=\"18\"\u003e\u003cspan style=\"color: #000000;\"\u003e52 mm\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 32.4583%; height: 19.5938px;\" valign=\"middle\" align=\"center\"\u003e\u003cspan style=\"color: #000000;\"\u003e2mm\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 31.3907%; height: 19.5938px;\" valign=\"middle\" align=\"center\"\u003e\u003cspan style=\"color: #000000;\"\u003eGNB-52ST2\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 97.9688px;\"\u003e\n\u003ctd style=\"width: 33.7289%; height: 97.9688px;\" valign=\"middle\" align=\"left\" height=\"18\"\u003e\u003cspan style=\"color: #000000;\"\u003eFor Canon EF-EOSR drop-in mount adapter \u0026amp; Meike MK-EFTR-C (EF-R) \u0026amp; MK-EFTE-C (EF-E) drop-in mount adapters - Details at: IDAS DRE Filter\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 32.4583%; height: 97.9688px;\" valign=\"middle\" align=\"center\"\u003e\u003cspan style=\"color: #000000;\"\u003eN\/A\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 31.3907%; height: 97.9688px;\" valign=\"middle\" align=\"center\"\u003e\u003cspan style=\"color: #000000;\"\u003eGNB-DRE\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 58.7812px;\"\u003e\n\u003ctd style=\"width: 33.7289%; height: 58.7812px;\" valign=\"middle\" align=\"left\" height=\"18\"\u003e\u003cspan style=\"color: #000000;\"\u003eFor use with ZWO cams (back-focus of 6.5mm) and also IDAS AD19.4 drop-in filter mount\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 32.4583%; height: 58.7812px;\" valign=\"middle\" align=\"center\"\u003e\u003cspan style=\"color: #000000;\"\u003eN\/A\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 31.3907%; height: 58.7812px;\" valign=\"middle\" align=\"center\"\u003e\u003cspan style=\"color: #000000;\"\u003eGNB-ZF \u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cbr\u003e\u003c\/h3\u003e\n\u003ch3\u003eIn the Box\u003cbr\u003e\n\u003c\/h3\u003e\n\u003cp\u003e\u003cspan mce-data-marked=\"1\"\u003eIDAS GNB Filter - at selected size :\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan mce-data-marked=\"1\"\u003e28,6mm (\u003cspan style=\"color: #000000;\"\u003eGNB-28.6)\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan mce-data-marked=\"1\"\u003e48mm (\u003cspan style=\"color: #000000;\"\u003eGNB-48ST2)\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan mce-data-marked=\"1\"\u003e52mm (\u003cspan style=\"color: #000000;\"\u003eGNB-52ST2)\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan mce-data-marked=\"1\"\u003eFItting for Canon EF-OESR (\u003cspan style=\"color: #000000;\"\u003eGNB-DRE)\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan mce-data-marked=\"1\"\u003eFitting for ZWO cameras of 6.5mm back focus (\u003cspan style=\"color: #000000;\"\u003eGNB-ZF)\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eManual \u0026amp; Warranty\u003c\/h3\u003e\n\u003cp\u003eIDAS 3-Year Warranty\u003c\/p\u003e","brand":"IDAS","offers":[{"title":"M48 (2\")","offer_id":44007990165733,"sku":"IDA-GNB-48ST2","price":347.0,"currency_code":"CAD","in_stock":true},{"title":"M52","offer_id":45659116634341,"sku":"IDA-GNB-52ST2","price":417.0,"currency_code":"CAD","in_stock":true},{"title":"DRE for Canon EF-EOSR","offer_id":45659116667109,"sku":"IDA-GNB-DRT","price":459.0,"currency_code":"CAD","in_stock":false},{"title":"ZF for ZWO cameras (1.1 mm thickness)","offer_id":44007990132965,"sku":"IDA-GNB-ZF","price":316.0,"currency_code":"CAD","in_stock":true},{"title":"DS for IDAS AD42-DS","offer_id":47819522801893,"sku":"IDA-GNB-DS","price":417.0,"currency_code":"CAD","in_stock":false},{"title":"DZ for ZWO FD-M54-II","offer_id":47819589124325,"sku":"IDA-GNB-DZ","price":409.0,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/idas-gnb-galaxy-and-nebula-filters-astronomy-plus-1.webp?v=1690489638"},{"product_id":"idas-lps-c1-m48-filter","title":"Sightron Light Pollution LPS-C1 Filter 2\" (M48)","description":"\u003ch2\u003eSightron LPS-C1 M48 Filter (2\")\u003c\/h2\u003e\n\u003cdiv\u003e\n\u003cdiv aria-labelledby=\"tab-title-description\" role=\"tabpanel\" id=\"tab-description\"\u003e\n\u003cp\u003e(LPS) Light Pollution Suppression Filter\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEffectively suppressing white LED sky glow\u003c\/li\u003e\n\u003cli\u003eMaintains the good color balance under the white LED dominant sky (See one of gallery images)\u003c\/li\u003e\n\u003cli\u003eAlso designed for enhancing the contrast of the comet emission lines\u003c\/li\u003e\n\u003cli\u003eGlass Type : Fused Quartz\u003c\/li\u003e\n\u003cli\u003eGlass thickness : 1.5mm\u003c\/li\u003e\n\u003cli\u003eM48 mounted\u003c\/li\u003e\n\u003cli\u003eMade in Japan\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"IDAS","offers":[{"title":"Default Title","offer_id":44154114965733,"sku":"SIG-LPSC1-48","price":265.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/idas-lps-c1-m48-filter-astronomy-plus-1.webp?v=1690492254"},{"product_id":"sightron-japan-alt-az-mount-alt-az","title":"Sightron Japan ALT-AZ Mount (ALT-AZ)","description":"\u003ch1\u003eSightron Japan ALT-AZ Mount\u003c\/h1\u003e\n\u003cp\u003eSightron Japan portable mount (SJ-M)\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e3 different modes – Alt-az, Single Fork \u0026amp; German Equatorial\u003c\/li\u003e\n\u003cli\u003eSolid and compact\u003c\/li\u003e\n\u003cli\u003e1450 g\u003c\/li\u003e\n\u003cli\u003e240mm x 80mm x 90mm when packed\u003c\/li\u003e\n\u003cli\u003eTwo slow motion control knobs are included (6mm shaft diameter)\u003c\/li\u003e\n\u003cli\u003e3\/8″ at the bottom\u003c\/li\u003e\n\u003cli\u003eMade in Japan\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIt provides great flexibility and can be operated in three different modes.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eConventional Alt-Azimuth\u003c\/li\u003e\n\u003cli\u003eSingle Fork\u003c\/li\u003e\n\u003cli\u003eGerman Equatorial (requires an EQ Wedge)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWith a maximum payload of 7kg and weighing only 1.45 kg, this highly portable mount is ideal for small to medium-sized telescopes.\u003c\/p\u003e\n\u003cp\u003eAvailable in either black or silver anodising with a Vixen-style Saddle Clamp and two slow-motion handles.\u003c\/p\u003e\n\u003cp\u003eThis sturdy mount folds down to 240 x 80 x 90 mm, making it perfect for travel.\u003c\/p\u003e\n\u003cp\u003eMovements are smooth and precise, enabling fine control of your telescope. \u003c\/p\u003e\n\u003cp\u003eA standard 3\/8\" tripod thread is situated on the base of the mount, thus ensuring its compatibility with a wide variety of tripods.\u003c\/p\u003e\n\u003cp\u003eThe Saddle Clamp can be removed to leave 2 x M6 threaded holes at 35mm centres.\u003c\/p\u003e\n\u003cp\u003eThis mount also has the advantage of operating in EQ mode, which, together with slow motion control, enables observation at high powers.\u003c\/p\u003e\n\u003ch3\u003eIn the Box\u003cbr\u003e\n\u003c\/h3\u003e\n\u003cp\u003eSightron Japan ALT-AZ Mount\u003c\/p\u003e\n\u003ch3\u003eManual \u0026amp; Warranty\u003c\/h3\u003e\n\u003cp\u003eSightron Japan Warranty\u003c\/p\u003e","brand":"Sightron Japan","offers":[{"title":"Black","offer_id":44182927999205,"sku":"SJ-ALT-AZ-B","price":531.0,"currency_code":"CAD","in_stock":true},{"title":"Silver","offer_id":44182928064741,"sku":"SJ-ALT-AZ-G","price":531.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/sightron-japan-alt-az-mount-alt-az-astronomy-plus-1.webp?v=1715808939"},{"product_id":"idas-2-nbz-ii-10nm-ha-8nm-oiii-dual-band-filter","title":"IDAS 2\" NBZ-II 10nm Ha \u0026 8nm OIII Dual Band Filter","description":"\u003ch2 data-mce-fragment=\"1\"\u003eIDAS 2\" NBZ-II 10nm Ha \u0026amp; 8nm OIII Dual Band Filter\u003c\/h2\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe IDAS NBZ-II is a new dual band nebula booster filter - the successor to the NBZ (NBZex) filter. The FWHM of the NBZ-II is 8nm (+\/=0.4nm) at OIII, and 10nm (+\/-0.4nm) at H-alpha respectively. This has the same anti-Haloing characteristics as the NBZ did. A test report of the actually measured optical properties is provided with each individual NBZ-II filter piece shipped.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe transmittance curve of interference filters will naturally shift towards the shorter wave length side against oblique light incidence, and this tendency will be more noticeable as the inncidence angle becomes higher as shown in the 3rd photo above.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eSome of the competitive 7nm or narrower filters will decrease in transmittance by 50% or more when used in a fast optical system (around F2), while the NBZ=II retains 80% or more of the transmittance under the same conditions.\u003c\/p\u003e\n\u003cp id=\"G0OU7F6\" data-mce-fragment=\"1\"\u003eThe shift tendency will be stronger in optical systems that have a central obstruction. Taking this into consideration, we have designed the NBZ-II as you can see from the simulation in the 4th photo above.\u003c\/p\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e2\" mounted; M48mm x 0.75mm\u003c\/li\u003e\n\u003cli\u003eGlass thickness: 2.0mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eIn the Box\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eNBZ II Filter\u003c\/li\u003e\n\u003cli\u003eIndividual spectrographic test report\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eManual \u0026amp; Warranty\u003c\/h3\u003e\n\u003cp\u003eIDAS 3-Year Warranty\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e \u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e \u003c\/p\u003e","brand":"IDAS","offers":[{"title":"48mm","offer_id":45659531542757,"sku":"IDA-NBZ-II-48ST2","price":417.0,"currency_code":"CAD","in_stock":true},{"title":"52mm","offer_id":47816626962661,"sku":"IDA-NBZ-II-52ST2","price":445.0,"currency_code":"CAD","in_stock":true},{"title":"Di2 drop in filter","offer_id":45659531575525,"sku":"IDA-NBZ-II-Di2","price":445.0,"currency_code":"CAD","in_stock":true},{"title":"DRT for Canon EF-EOSR","offer_id":45659531608293,"sku":"IDA-NBZ-II-DRT","price":487.0,"currency_code":"CAD","in_stock":true},{"title":"DZ for use with ZWO cams","offer_id":47816617394405,"sku":"IDA-NBZ-II-DZ","price":417.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/idas-2-nbz-ii-10nm-ha-and-8nm-oiii-dual-band-filter-astronomy-plus-1.png?v=1715808232"},{"product_id":"idas-lps-p2-31mm-pollution-filter-lps-p2-31","title":"IDAS LPS-P2 31mm pollution filter (LPS-P2-31)","description":"\u003ch1\u003eIDAS LPS-P2 unmounted 31mm pollution filter \u003c\/h1\u003e\n\u003ch2\u003eNew, but \u003cspan style=\"text-decoration: underline; color: rgb(239, 18, 18);\"\u003ediscontinued.\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003ch2 data-mce-fragment=\"1\"\u003eDescription\u003c\/h2\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eLight pollution suppression (LPS) filters are designed to suppress the common emission lines generated by artificial lighting, yet allow the important nebula emission lines to pass, thus enhancing the contrast of astronomical objects, particularly emission nebulae.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eUnlike other light pollution suppression filters, IDAS filters are specifically designed for balanced color transmission using the IDAS unique \u003cb data-mce-fragment=\"1\"\u003eMulti-Bandpass Technology\u003c\/b\u003e (MBT) process. The balanced transmission allows color photographs to be taken with minimal color cast to broadband emission objects such as stars, galaxies and globular clusters. The comparison photos at right demonstrate (qualitatively) that the IDAS filter maintains better color balance than other filters which have been designed for visual use.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eLPS filters utilize the unique IDAS Ion Gun Assisted Deposition (IGAD*) coating technology for superior coating durability (quartz hardness) and safer cleaning. IGAD coatings also improve temperature and humidity stability of the filter performance, reducing spectrum shifts down to +\/-1nm from the +\/-3 or 4nm shift of standard coatings.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eCCD imaging can also benefit, because although CCD imagers can already shoot through light pollution to some extent, including an LPS filter to the setup gives an added (signal-to-noise) edge.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eNote, however, that light pollution suppression filters are \u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003enot\u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003e a perfect substitute for dark skies. Refer to Hutech's discussion of the \u003c\/span\u003e\u003ca href=\"http:\/\/www.sciencecenter.net\/hutech\/idas\/lps2.htm\" aria-describedby=\"a11y-external-message\" data-mce-fragment=\"1\" data-mce-href=\"http:\/\/www.sciencecenter.net\/hutech\/idas\/lps2.htm\"\u003elimitations and common misconceptions\u003c\/a\u003e\u003cspan data-mce-fragment=\"1\"\u003e about light pollution suppression filters.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eLPS filters are available for 1-1\/4\" and 2\" (48mm) eyepieces, as well as in numerous sizes to accomodate most popular camera lenses. Each filter lot is tested and a plot of the spectral response of the lot is provided with each filter. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0869\/6486\/files\/tokai1_large.gif?10873360616383643319\" alt=\"\" data-mce-fragment=\"1\" data-mce-src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0869\/6486\/files\/tokai1_large.gif?10873360616383643319\"\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e[Above] Spectral response (% transmission vs. wavelength in nanometers) of the IDAS Light Pollution Suppression filter. Major emission lines generated by artificial lighting are also indicated. Note that this plot represents the spec target for LPS filters. The spectral response of each individual filter will vary. This is measured, plotted, and shipped with each filter produced:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0869\/6486\/files\/idas-p2_1024x1024.gif?7115251255644343845\" alt=\"\" data-mce-fragment=\"1\" data-mce-src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0869\/6486\/files\/idas-p2_1024x1024.gif?7115251255644343845\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eAbove is a sample of the filter lot data plot which is shipped with each filter.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eThe IDAS production criteria for filters are as follows, arranged from left to right (short to long wavelength) as plotted above:\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv class=\"scrollable-wrapper\" data-mce-fragment=\"1\"\u003e\n\u003cdiv class=\"table-wrapper\"\u003e\n\u003ctable data-mce-fragment=\"1\"\u003e\n\u003ctbody data-mce-fragment=\"1\"\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cspan size=\"2\" face=\"Arial, Geneva\" data-mce-fragment=\"1\"\u003eWavelength (nm)\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cspan size=\"2\" face=\"Arial, Geneva\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003ePass\/Block\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cspan size=\"2\" face=\"Arial, Geneva\" data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eTransmission\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan size=\"2\" face=\"Arial, Geneva\" data-mce-fragment=\"1\"\u003e365\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan size=\"2\" face=\"Arial, Geneva\" data-mce-fragment=\"1\"\u003eBlock\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan size=\"2\" face=\"Arial, Geneva\" data-mce-fragment=\"1\"\u003e6.5% max\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan size=\"2\" face=\"Arial, Geneva\" data-mce-fragment=\"1\"\u003e405\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan size=\"2\" face=\"Arial, Geneva\" data-mce-fragment=\"1\"\u003eBlock\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan size=\"2\" face=\"Arial, Geneva\" data-mce-fragment=\"1\"\u003e6.5% max\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan size=\"2\" face=\"Arial, Geneva\" data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan size=\"2\" face=\"Arial, Geneva\" data-mce-fragment=\"1\"\u003ePass\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan size=\"2\" face=\"Arial, Geneva\" data-mce-fragment=\"1\"\u003e60% min (avg)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan size=\"2\" face=\"Arial, Geneva\" data-mce-fragment=\"1\"\u003e436\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan size=\"2\" face=\"Arial, Geneva\" data-mce-fragment=\"1\"\u003eBlock\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan size=\"2\" face=\"Arial, Geneva\" data-mce-fragment=\"1\"\u003e6.5% max\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan size=\"2\" face=\"Arial, Geneva\" data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan size=\"2\" face=\"Arial, Geneva\" data-mce-fragment=\"1\"\u003ePass\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan size=\"2\" face=\"Arial, Geneva\" data-mce-fragment=\"1\"\u003e92% min (avg)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan size=\"2\" face=\"Arial, Geneva\" data-mce-fragment=\"1\"\u003e546\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan size=\"2\" face=\"Arial, Geneva\" data-mce-fragment=\"1\"\u003eBlock\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan size=\"2\" face=\"Arial, Geneva\" data-mce-fragment=\"1\"\u003e6.5% max\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan size=\"2\" face=\"Arial, Geneva\" data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan size=\"2\" face=\"Arial, Geneva\" data-mce-fragment=\"1\"\u003ePass\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan size=\"2\" face=\"Arial, Geneva\" data-mce-fragment=\"1\"\u003e75% min (avg)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan size=\"2\" face=\"Arial, Geneva\" data-mce-fragment=\"1\"\u003e590\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan size=\"2\" face=\"Arial, Geneva\" data-mce-fragment=\"1\"\u003eBlock\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan size=\"2\" face=\"Arial, Geneva\" data-mce-fragment=\"1\"\u003e6.5% max\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan size=\"2\" face=\"Arial, Geneva\" data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan size=\"2\" face=\"Arial, Geneva\" data-mce-fragment=\"1\"\u003ePass\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan size=\"2\" face=\"Arial, Geneva\" data-mce-fragment=\"1\"\u003e75% min (avg)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan size=\"2\" face=\"Arial, Geneva\" data-mce-fragment=\"1\"\u003e623\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan size=\"2\" face=\"Arial, Geneva\" data-mce-fragment=\"1\"\u003eBlock\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan size=\"2\" face=\"Arial, Geneva\" data-mce-fragment=\"1\"\u003e25% max\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan size=\"2\" face=\"Arial, Geneva\" data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan size=\"2\" face=\"Arial, Geneva\" data-mce-fragment=\"1\"\u003ePass\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\"\u003e\u003cspan size=\"2\" face=\"Arial, Geneva\" data-mce-fragment=\"1\"\u003e80% min (avg)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0869\/6486\/files\/tokai2_large.gif?10873360616383643319\" alt=\"\" data-mce-fragment=\"1\" data-mce-src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0869\/6486\/files\/tokai2_large.gif?10873360616383643319\"\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e[Above] Off-axis spectral response (% transmission vs. wavelength in nanometers) of the IDAS filter.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e \u003c\/p\u003e","brand":"IDAS","offers":[{"title":"Default Title","offer_id":45465767411941,"sku":"IDA-LPS-P2-31mm","price":20.0,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/idas-lps-p2-31mm-pollution-filter-lps-p2-31-astronomy-plus.webp?v=1715808115"},{"product_id":"d","title":"IDAS Ha \u0026 OIII Dusk to dawn (DTD) Filters","description":"\u003ch2\u003eIDAS Ha \u0026amp; OIII Dusk to dawn (DTD) Filters\u003c\/h2\u003e\n\u003cp\u003eA new generation filter covering multiple objects including comets, galaxies, the Milky Way, and emission and reflection nebulae, by making use of the extra transmission in the NIR region.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe IDAS DTD filter not only passes through the Ha and OIII regions in the same manner as of the IDAS NBZ, but also provides a pass band for comet ion tails in the visible spectrum range (400nm to 700nm, susceptible to light pollutions). This filter furthermore enhances the contrast of the continuous spectrum lights from comet dust tails, galaxies and the Milky Way by making use of the NIR region that is hardly interferenced by light pollutions. The DTD filter makes it possible to shoot more objects in the visible to NIR spectrum range at higher contrasts.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eOptical filters such as IDAS DTD and GNB utilizing infrared tend to cause haloing in the NUV and NIR regions. This is because the anti-reflection properties of off-the-shelf cameras' optical systems (oiptical window and sensor cover glass) are optimized for the visible spectrum only, not for the NIR region. Thus, haoling at the camera end in the unoptimized region becomes more apparent, coupled with haloing from the filter itself.\u003cbr\u003eHere is a rough estimation of the magnitude of haoling where the haloing maginute of NBZ (NBZex) is counted as 1:\u003cbr\u003eDTD + IMX294 sensor results in 7.9 times\u003cbr\u003eDTD + IMX585 sensor results in 23.7 times\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eM31 Photo taken by Mr. Numazawa: \u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/M31-011124-numazawa.jpg?v=1717002927\" width=\"1308\" height=\"891\"\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eComet Nishimura Photos taken by Mr. Numazawa:\u003c\/span\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/230827C2023P1-JPL.png?v=1717002992\" width=\"947\" height=\"1423\"\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eComet 12P\/Pons-Brooks Photo taken by Mr. Numazawa:\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cimg height=\"1534\" width=\"970\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/12P-Pons-Brooks-011124-numazawa.jpg?v=1717003086\" alt=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cp\u003e\u003cimg height=\"745\" width=\"1334\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/1_b3fb8ec0-569a-40d0-8ae5-c5eb6e5a049c.png?v=1717003268\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg height=\"784\" width=\"1405\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/3_37fcf8a8-f782-495e-8c8a-f8d38599aac3.png?v=1717003393\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg height=\"724\" width=\"1297\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/4_61302966-4126-4bcf-954c-2bc089374508.png?v=1717003408\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg height=\"882\" width=\"1618\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/dtd-alp.png?v=1717003429\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch3\u003eIn the Box\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eDYD FIlter at selected size :\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan data-sheets-root=\"1\" data-sheets-value='{\"1\":2,\"2\":\"48S\"}' data-sheets-userformat='{\"2\":12797,\"3\":{\"1\":0,\"3\":1},\"5\":{\"1\":[{\"1\":2,\"2\":0,\"5\":{\"1\":2,\"2\":0}},{\"1\":0,\"2\":0,\"3\":3},{\"1\":1,\"2\":0,\"4\":1}]},\"6\":{\"1\":[{\"1\":2,\"2\":0,\"5\":{\"1\":2,\"2\":0}},{\"1\":0,\"2\":0,\"3\":3},{\"1\":1,\"2\":0,\"4\":1}]},\"7\":{\"1\":[{\"1\":2,\"2\":0,\"5\":{\"1\":2,\"2\":0}},{\"1\":0,\"2\":0,\"3\":3},{\"1\":1,\"2\":0,\"4\":1}]},\"8\":{\"1\":[{\"1\":2,\"2\":0,\"5\":{\"1\":2,\"2\":0}},{\"1\":0,\"2\":0,\"3\":3},{\"1\":1,\"2\":0,\"4\":1}]},\"9\":1,\"10\":0,\"11\":4,\"15\":\"游ゴシック\",\"16\":8}' data-sheets-textstyleruns='{\"1\":0,\"2\":{\"3\":\"游ゴシック\",\"4\":8}}'\u003e\u003cstrong\u003eM48 x 0.75\u003c\/strong\u003e, with \u003cstrong\u003e2.5mm\u003c\/strong\u003e substrate thickness (48S)\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan data-sheets-root=\"1\" data-sheets-value='{\"1\":2,\"2\":\"48S\"}' data-sheets-userformat='{\"2\":12797,\"3\":{\"1\":0,\"3\":1},\"5\":{\"1\":[{\"1\":2,\"2\":0,\"5\":{\"1\":2,\"2\":0}},{\"1\":0,\"2\":0,\"3\":3},{\"1\":1,\"2\":0,\"4\":1}]},\"6\":{\"1\":[{\"1\":2,\"2\":0,\"5\":{\"1\":2,\"2\":0}},{\"1\":0,\"2\":0,\"3\":3},{\"1\":1,\"2\":0,\"4\":1}]},\"7\":{\"1\":[{\"1\":2,\"2\":0,\"5\":{\"1\":2,\"2\":0}},{\"1\":0,\"2\":0,\"3\":3},{\"1\":1,\"2\":0,\"4\":1}]},\"8\":{\"1\":[{\"1\":2,\"2\":0,\"5\":{\"1\":2,\"2\":0}},{\"1\":0,\"2\":0,\"3\":3},{\"1\":1,\"2\":0,\"4\":1}]},\"9\":1,\"10\":0,\"11\":4,\"15\":\"游ゴシック\",\"16\":8}' data-sheets-textstyleruns='{\"1\":0,\"2\":{\"3\":\"游ゴシック\",\"4\":8}}'\u003e\u003cstrong\u003eM48 x 0.75\u003c\/strong\u003e with \u003cstrong\u003e2mm\u003c\/strong\u003e substrate thickness (48ST2)\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan data-sheets-root=\"1\" data-sheets-value='{\"1\":2,\"2\":\"48S\"}' data-sheets-userformat='{\"2\":12797,\"3\":{\"1\":0,\"3\":1},\"5\":{\"1\":[{\"1\":2,\"2\":0,\"5\":{\"1\":2,\"2\":0}},{\"1\":0,\"2\":0,\"3\":3},{\"1\":1,\"2\":0,\"4\":1}]},\"6\":{\"1\":[{\"1\":2,\"2\":0,\"5\":{\"1\":2,\"2\":0}},{\"1\":0,\"2\":0,\"3\":3},{\"1\":1,\"2\":0,\"4\":1}]},\"7\":{\"1\":[{\"1\":2,\"2\":0,\"5\":{\"1\":2,\"2\":0}},{\"1\":0,\"2\":0,\"3\":3},{\"1\":1,\"2\":0,\"4\":1}]},\"8\":{\"1\":[{\"1\":2,\"2\":0,\"5\":{\"1\":2,\"2\":0}},{\"1\":0,\"2\":0,\"3\":3},{\"1\":1,\"2\":0,\"4\":1}]},\"9\":1,\"10\":0,\"11\":4,\"15\":\"游ゴシック\",\"16\":8}' data-sheets-textstyleruns='{\"1\":0,\"2\":{\"3\":\"游ゴシック\",\"4\":8}}'\u003e\u003cstrong\u003eM52 x 0.75\u003c\/strong\u003e with \u003cstrong\u003e2mm \u003c\/strong\u003esubstrate thickness (52ST2)\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan data-sheets-root=\"1\" data-sheets-value='{\"1\":2,\"2\":\"48S\"}' data-sheets-userformat='{\"2\":12797,\"3\":{\"1\":0,\"3\":1},\"5\":{\"1\":[{\"1\":2,\"2\":0,\"5\":{\"1\":2,\"2\":0}},{\"1\":0,\"2\":0,\"3\":3},{\"1\":1,\"2\":0,\"4\":1}]},\"6\":{\"1\":[{\"1\":2,\"2\":0,\"5\":{\"1\":2,\"2\":0}},{\"1\":0,\"2\":0,\"3\":3},{\"1\":1,\"2\":0,\"4\":1}]},\"7\":{\"1\":[{\"1\":2,\"2\":0,\"5\":{\"1\":2,\"2\":0}},{\"1\":0,\"2\":0,\"3\":3},{\"1\":1,\"2\":0,\"4\":1}]},\"8\":{\"1\":[{\"1\":2,\"2\":0,\"5\":{\"1\":2,\"2\":0}},{\"1\":0,\"2\":0,\"3\":3},{\"1\":1,\"2\":0,\"4\":1}]},\"9\":1,\"10\":0,\"11\":4,\"15\":\"游ゴシック\",\"16\":8}' data-sheets-textstyleruns='{\"1\":0,\"2\":{\"3\":\"游ゴシック\",\"4\":8}}'\u003eFor \u003cstrong\u003eCanon EF-EOSR\u003c\/strong\u003e (DRT)\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eManual \u0026amp; Warranty\u003c\/h3\u003e\n\u003cp\u003eIDAS 3-Year Warranty\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/DRT-manual-en.pdf?v=1753371658\" target=\"_blank\" rel=\"noopener\"\u003eDTD-DRT Manual\u003c\/a\u003e\u003c\/p\u003e\n\u003c!----\u003e","brand":"Astronomy Plus","offers":[{"title":"M48 with 2.5mm thickness","offer_id":45658829848805,"sku":"IDA-DTD-48S","price":294.0,"currency_code":"CAD","in_stock":true},{"title":"M48 with 2mm thickness","offer_id":45658829881573,"sku":"IDA-DTD-48ST2","price":305.0,"currency_code":"CAD","in_stock":true},{"title":"M52 with 2mm thickness","offer_id":45658829914341,"sku":"IDA-DTD-52ST2","price":347.0,"currency_code":"CAD","in_stock":true},{"title":"Canon EF-EOSR","offer_id":45658829947109,"sku":"IDA-DTD-DRT","price":367.0,"currency_code":"CAD","in_stock":true},{"title":"DZ to use with the ZWO M54 Filter Drawer","offer_id":47816672641253,"sku":"IDA-DTD-DZ","price":297.0,"currency_code":"CAD","in_stock":true},{"title":"ZF for use with ZWO cams","offer_id":47816672674021,"sku":"IDA-DTD-ZF","price":277.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/1_6b42712b-e085-4419-88fc-9c6f39949000.png?v=1777044859"},{"product_id":"idas-m42-filter-holder-for-rasa-8-m42-ol7-5","title":"IDAS M42 Filter Holder for RASA 8 (M42 OL7.5)","description":"\u003ch1\u003eIDAS M42 Filter Holder for RASA 8\u003c\/h1\u003e\n\u003cp\u003eThe IDAS M42 OL7.5 frame holds the IDAS filters series, and is an frame adapter with an optical path length of 7.5mm.\u003c\/p\u003e\n\u003cp\u003eIt is designed to be used directly between a Celestron RASA 8 and a camera with a 17.5mm flange back (FB). It can also be used with other M42 adapters.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eOptimized 7.5mm Optical Path Length\u003c\/li\u003e\n\u003cli\u003eDesigned to fit perfectly between a RASA 8 and a 17.5mm FB camera.\u003c\/li\u003e\n\u003cli\u003eClear Aperture (CA) 34.5mm\u003c\/li\u003e\n\u003cli\u003eCan be used with sensors up to APS-C size without vignetting. (*Vignetting inherent to the RASA 8 itself is not considered.)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/Ray-tracking_1024x1024.jpg?v=1786030795\" alt=\"\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003ch2\u003eUsage \u0026amp; Connection Examples\u003cbr\u003e\n\u003c\/h2\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e[Usage with an M42 17.5mm FB Camera]\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003eCan be connected and used directly\u003c\/p\u003e\n\u003cdiv style=\"text-align: start;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/M42-image2A_1024x1024.png?v=1786030188\" alt=\"\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e[Usage with an M48 or M54 17.5mm FB Camera]\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eConnect using a commercially available M42-to-M48 or M42-to-M54 adapter.\u003cbr\u003e\u003cspan class=\"style3\"\u003e(M42-to-M48 or M42-to-M54 adapter ring is not included in this product.)\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: start;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/M42-image2B_1024x1024.png?v=1786030449\" alt=\"\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eValue\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eFilter frame adapter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Filter Series\u003c\/td\u003e\n\u003ctd\u003eIDAS filter series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eM42 OL7.5 Frame\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread Interface\u003c\/td\u003e\n\u003ctd\u003eM42\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Path Length\u003c\/td\u003e\n\u003ctd\u003e7.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClear Aperture (CA)\u003c\/td\u003e\n\u003ctd\u003e34.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary Compatibility\u003c\/td\u003e\n\u003ctd\u003eCelestron RASA 8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCamera Flange Back Compatibility\u003c\/td\u003e\n\u003ctd\u003e17.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Position\u003c\/td\u003e\n\u003ctd\u003eBetween the RASA 8 and a 17.5 mm flange back camera\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdditional Compatibility\u003c\/td\u003e\n\u003ctd\u003eCan also be used with other M42 adapters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Recommended Sensor Size\u003c\/td\u003e\n\u003ctd\u003eUp to APS-C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVignetting Performance\u003c\/td\u003e\n\u003ctd\u003eNo adapter-induced vignetting up to APS-C sensors (does not account for inherent RASA 8 vignetting)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eIn the Box\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eIDAS M42 Filter Holder \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"IDAS","offers":[{"title":"Default Title","offer_id":51839751258341,"sku":"IDA-M42 OL7.5","price":151.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/Clear-m42-ol7r5-ss.jpg?v=1786030978"},{"product_id":"idas-m54-filter-holder-for-rasa-8-m54-ol7-5","title":"IDAS M54 Filter Holder for RASA 8 (M54 OL7.5)","description":"\u003ch1\u003eIDAS M54 Filter Holder for RASA 8\u003c\/h1\u003e\n\u003cp\u003eThe IDAS M54 OL7.5 frame holds the IDAS filters series, and is an frame adapter with an optical path length of 7.5mm.\u003c\/p\u003e\n\u003cp\u003eIt is designed to be used directly between a Celestron RASA 8 and a standard M54 camera with a 17.5mm flange back (FB). It can also be used in combination with other standard M54 adapters.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eOptimized 7.5mm Optical Path Length\u003cbr\u003eDesigned to fit perfectly between a RASA 8 and a 17.5mm FB camera.\u003c\/li\u003e\n\u003cli\u003eGenerous Clear Aperture (CA) 47mm\u003c\/li\u003e\n\u003cli\u003eThe large aperture design allows it to be used with ZWO dual-sensor cameras and full-frame sensor cameras without worrying about vignetting (peripheral light fall-off).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/image1.jpg?v=1786031818\" alt=\"\"\u003e\u003c\/div\u003e\n\u003ch2\u003eUsage \u0026amp; Connection Examples\u003cbr\u003e\n\u003c\/h2\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e[Usage with RASA 8 ]\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003eUse an \"M42 to M54 Adapter Ring\" on the RASA 8 telescope side to connect an M54 standard camera with a 17.5mm flange back.\u003c\/p\u003e\n\u003cp\u003e(M42-to-M54 adapter ring is bundled to M54 OL7.5 \"ADP\", but no bundled to M54 OL7.5 (wihtout \"ADP\" suffix).\u003c\/p\u003e\n\u003cdiv style=\"text-align: start;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/m54-ol7r5-imageA.png?v=1786031881\" alt=\"\"\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eValue\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eFilter frame adapter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Filter Series\u003c\/td\u003e\n\u003ctd\u003eIDAS filter series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eM54 OL7.5 Frame\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread Interface\u003c\/td\u003e\n\u003ctd\u003eM54\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Path Length\u003c\/td\u003e\n\u003ctd\u003e7.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClear Aperture (CA)\u003c\/td\u003e\n\u003ctd\u003e47 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary Compatibility\u003c\/td\u003e\n\u003ctd\u003eCelestron RASA 8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCamera Compatibility\u003c\/td\u003e\n\u003ctd\u003eStandard M54 cameras\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCamera Flange Back Compatibility\u003c\/td\u003e\n\u003ctd\u003e17.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Position\u003c\/td\u003e\n\u003ctd\u003eBetween the RASA 8 and a standard M54 camera with a 17.5 mm flange back\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdditional Compatibility\u003c\/td\u003e\n\u003ctd\u003eCompatible with other standard M54 adapters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Recommended Sensor Size\u003c\/td\u003e\n\u003ctd\u003eFull-frame (including dual-sensor cameras)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVignetting Performance\u003c\/td\u003e\n\u003ctd\u003eLarge 47 mm aperture minimizes adapter-induced vignetting for full-frame and dual-sensor cameras (does not account for inherent RASA 8 vignetting)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRASA 8 Connection Requirement\u003c\/td\u003e\n\u003ctd\u003eRequires an M42-to-M54 adapter ring between the RASA 8 and the M54 frame\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded Adapter (ADP Version)\u003c\/td\u003e\n\u003ctd\u003eM42-to-M54 adapter ring included with \u003cstrong\u003eM54 OL7.5 ADP\u003c\/strong\u003e version\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded Adapter (Standard Version)\u003c\/td\u003e\n\u003ctd\u003eM42-to-M54 adapter ring \u003cstrong\u003enot included\u003c\/strong\u003e with the standard \u003cstrong\u003eM54 OL7.5\u003c\/strong\u003e version\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cbr\u003e\u003c\/h3\u003e\n\u003ch3\u003eIn the Box\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eIDAS M54 Filter Holder \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eOr : \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIDAS M54 Filter Holder \u003c\/li\u003e\n\u003cli\u003eM54M to M42F Adapter\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"IDAS","offers":[{"title":"Filter Holder Only","offer_id":51840138576101,"sku":"IDA-M54 OL7.5","price":155.0,"currency_code":"CAD","in_stock":true},{"title":"Filter Holder + M42-M54 Adapter","offer_id":51840138608869,"sku":"IDA-M54 OL7.6","price":210.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/ODW_M54_OL7.5_v1.png?v=1786031959"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/collections\/idas-astronomy-plus.png?v=1677340909","url":"https:\/\/istronomyplus.com\/collections\/idas.oembed","provider":"Astronomy Plus – Telescopes \u0026 Astrophotography Canada","version":"1.0","type":"link"}