{"product_id":"baader-zero-tolerance-protective-canon-dslr-t-ring-t-2-m48-and-2","title":"Baader zero-tolerance protective Canon DSLR T-Ring T-2\/M48 and 2\"","description":"\u003cp style=\"text-align: justify; background-color: rgb(255, 255, 255); margin-bottom: 0px; margin-top: 0px;\"\u003e\u003cspan style=\"font-size: 10pt;\"\u003eToday's large sensor digital SLRs and advanced imaging techniques enable amateurs to take spectacular high resolution and long exposure images that push the limits of modern telescope optics.  Up until now, the only means of coupling a DSLR to the telescope  relies on the use of a standard mass produced camera T-Ring.   Unfortunately, T-rings have failed to evolve with the demanding needs of the advanced astro-imager:\u003c\/span\u003e\u003c\/p\u003e\u003cul style=\"text-align: justify; background-color: rgb(255, 255, 255);\"\u003e\n\u003cli\u003e\u003cp style=\"margin-bottom: 0px; margin-top: 0px;\"\u003e\u003cspan style=\"font-size: 10pt;\"\u003eThe use of 42mm T-thread for the coupling causes a choke-point in the imaging train (typcially 38mm internal diameter), resulting in vignetting in fast systems. \u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp style=\"margin-bottom: 0px; margin-top: 0px;\"\u003e\u003cspan style=\"font-size: 10pt;\"\u003eHigh resolution digital image sensors and their protective glass covers are highly vulnerable to dust that can enter the body each time the camera is coupled\/uncoupled, or in open systems, particularly if the camera has been modified for full-spectrum use.  \u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp style=\"margin-bottom: 0px; margin-top: 0px;\"\u003e\u003cspan style=\"font-size: 10pt;\"\u003eThese commonly available T-rings are mass-produced for generic camera use, with general manufacturing tolerances and design, which result in a potentially loose bayonet fit that can cause focal plane squareness and long-exposure image shifting from lateral play and angular wobble.\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp align=\"justify\" style=\"text-align: justify; background-color: rgb(255, 255, 255); margin-bottom: 0px;\"\u003e\u003cspan style=\"font-size: 10pt;\"\u003eOur New \u003c\/span\u003e\u003cspan style=\"font-weight: bold;\"\u003eBaader Protective Wide T-Ring System\u003c\/span\u003e\u003cspan style=\"font-size: 10pt;\"\u003e for the Canon EOS evolves the T-Ring and solves these issues. \u003c\/span\u003e\u003c\/p\u003e\u003cul style=\"text-align: justify; background-color: rgb(255, 255, 255);\"\u003e\n\u003cli\u003e\u003cp align=\"justify\" style=\"margin-bottom: 0px;\"\u003e\u003cspan style=\"font-size: 10pt;\"\u003eThe 2\" wide-aperture of the protective T-ring accepts 3 different attachment adapters, which are included with each T-ring:  Standard T-thread (42mm), 2\" thin profile nosepiece, and 48mm thread (astro filter standard). \u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp align=\"justify\" style=\"margin-bottom: 0px;\"\u003e\u003cspan style=\"font-size: 10pt;\"\u003eThe internal filter compartment is able to accept both Baader 2\" mounted filters, and 50.4mm diameter unmounted filters for the widest clear aperture possible (47.3mm aperture).\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp align=\"justify\" style=\"margin-bottom: 0px;\"\u003e\u003cspan style=\"font-size: 10pt;\"\u003eThe optimized design and tight manufacturing tolerances ensure the closest fit possible with the Canon EOS body.  This avoids the occurance of focal plane tilt and image shift caused by play and wobble at this connection point.\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp align=\"justify\" style=\"text-align: justify; background-color: rgb(255, 255, 255); margin-bottom: 0px; margin-top: 0px;\"\u003e\u003cspan style=\"font-size: 10pt;\"\u003eThe Baader Protective Wide T-Ring System includes 6 configurable parts:\u003c\/span\u003e\u003c\/p\u003e\u003col style=\"text-align: justify; background-color: rgb(255, 255, 255);\"\u003e\n\u003cli\u003e\u003cp align=\"justify\" style=\"margin-bottom: 0px; margin-top: 0px;\"\u003e\u003cspan style=\"font-size: 10pt;\"\u003eProtective T-ring Body\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp align=\"justify\" style=\"margin-bottom: 0px; margin-top: 0px;\"\u003e\u003cspan style=\"font-size: 10pt;\"\u003eTemperature Compensation Ring (for installation of 50.4mm x3mm unmounted filters)\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp align=\"justify\" style=\"margin-bottom: 0px; margin-top: 0px;\"\u003e\u003cspan style=\"font-size: 10pt;\"\u003eAdapter S52\/M48 (for 48mm connection thread)\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp align=\"justify\" style=\"margin-bottom: 0px; margin-top: 0px;\"\u003e\u003cspan style=\"font-size: 10pt;\"\u003eT-thread\/M48 adapter (for standard 42mm T-thread connection)\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp align=\"justify\" style=\"margin-bottom: 0px; margin-top: 0px;\"\u003e\u003cspan style=\"font-size: 10pt;\"\u003eS52\/2\" wide aperture 2\" nosepeice (includes M48 filter thread)\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp align=\"justify\" style=\"margin-bottom: 0px; margin-top: 0px;\"\u003e\u003cspan style=\"font-size: 10pt;\"\u003e1.5mm Allen Wrench\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\u003cdiv align=\"center\" style=\"background-color: rgb(255, 255, 255);\"\u003e\u003ccenter\u003e\u003ctable border=\"0\" cellpadding=\"0\" cellspacing=\"0\" bordercolor=\"#111111\" width=\"100%\" style=\"border-collapse: collapse;\"\u003e\u003ctbody\u003e\u003ctr\u003e\n\u003ctd width=\"33%\"\u003e\u003cp align=\"center\"\u003e\u003ca href=\"http:\/\/alpineastro.com\/digital_photography\/images\/Tring_large.jpg\"\u003e\u003cimg border=\"0\" src=\"http:\/\/alpineastro.com\/digital_photography\/images\/Tring_small.jpg\" width=\"150\" height=\"148\"\u003e\u003c\/a\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd width=\"33%\"\u003e\u003cp align=\"center\"\u003e\u003ca href=\"http:\/\/alpineastro.com\/digital_photography\/images\/Tring_System_large.jpg\"\u003e\u003cimg border=\"0\" src=\"http:\/\/alpineastro.com\/digital_photography\/images\/Tring_System_small.jpg\" width=\"250\" height=\"136\"\u003e\u003c\/a\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd width=\"34%\"\u003e\u003cp align=\"center\"\u003e\u003cimg border=\"0\" src=\"http:\/\/alpineastro.com\/digital_photography\/images\/Tring_filter_small.jpg\" width=\"150\" height=\"123\"\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/center\u003e\u003c\/div\u003e\u003cp align=\"center\" style=\"background-color: rgb(255, 255, 255);\"\u003e\u003ci\u003eFor further information and detailed usage instructions, please click on the link below:\u003c\/i\u003e\u003c\/p\u003e\u003cp align=\"center\" style=\"background-color: rgb(255, 255, 255);\"\u003e\u003cspan style=\"font-weight: bold;\"\u003e\u003ca href=\"http:\/\/alpineastro.com\/digital_photography\/images\/protectiveT-Ring-CanonEOS-en[1].pdf\"\u003e\u003cspan style=\"color: rgb(0, 102, 153);\"\u003eProtective Wide T-Ring Instruction Manual\u003c\/span\u003e\u003c\/a\u003e\u003c\/span\u003e\u003cspan style=\"font-size: 8pt; color: rgb(0, 102, 153);\"\u003e\u003cimg border=\"0\" src=\"http:\/\/alpineastro.com\/common%20images\/pdficon.gif\" width=\"32\" height=\"32\"\u003e \u003c\/span\u003e\u003cspan style=\"font-size: 8pt;\"\u003e(508 kB)\u003c\/span\u003e\u003c\/p\u003e","brand":"Baader Planetarium","offers":[{"title":"Default Title","offer_id":44013384663151,"sku":"DSLRT","price":135.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/paar-bp-dslrt-1s__15723.jpg?v=1766552591","url":"https:\/\/ontariotelescope.com\/products\/baader-zero-tolerance-protective-canon-dslr-t-ring-t-2-m48-and-2","provider":"Ontario Telescope and Accessories","version":"1.0","type":"link"}