{"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","url":"https:\/\/astronomyplus.com\/products\/idas-m42-filter-holder-for-rasa-8-m42-ol7-5","provider":"Astronomy Plus – Telescopes \u0026 Astrophotography Canada","version":"1.0","type":"link"}