{"product_id":"baader-glasspathcorrector-1-1-70-for-baader-binoviewer-with-zeiss-ring-dovetail-maxbright®-ii-and-mark-v-2456316z","title":"Baader Glasspathcorrector 1:1,70 for Baader-Binoviewer with Zeiss ring dovetail (MaxBright® II and Mark V) (2456316Z)","description":"\u003ch1\u003eBaader Glasspathcorrector 1:1,70 for Baader-Binoviewer with Zeiss ring dovetail (MaxBright® II and Mark V)\u003c\/h1\u003e\n\u003cul\u003e\n\u003cli\u003eGlasspathcorrector Factor 1,7. Optical path length:-65 mm\u003cbr\u003eInsert diameter: ˆ… 38 mm\u003c\/li\u003e\n\u003cli\u003eSuitable to insert into the Baader MaxBright® II Binoviewer or Mark V Gro؟feld (Giant)-Binocular (#2456410)\u003c\/li\u003e\n\u003cli\u003eA Baader Glaspathcorrector is not a Barlow lens! The reason for this name (in Germany the name Glaswegkorrektor® is a protected trademark by Baader Planetarium) is only secondly the displacement of the focal point\u003c\/li\u003e\n\u003cli\u003eA Glaspathcorrector is primarily intended to correct the prismatic color fringing that occurs on Refractors due to the \u003cspan style=\"display: inline !important; float: none; background-color: #ffffff; color: #212b36; font-family: -apple-system,BlinkMacSystemFont,San Francisco,Segoe UI,Roboto,Helvetica Neue,sans-serif; font-size: 14px; font-style: normal; font-variant: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: left; text-decoration: none; text-indent: 0px; text-transform: none; -webkit-text-stroke-width: 0px; white-space: normal; word-spacing: 0px;\"\u003elong glasspath used\u003c\/span\u003e used in binocular prisms\u003c\/li\u003e\n\u003cli\u003ePlease note: The Baader MaxBright® II Binoviewer with case (#2456460) is the only Baader-Bino where you can choose between Zeiss ring-dovetail and T-2 thread adapter.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eGlasspathcorrector (GC) for Baader Binoviewers and more\u003c\/h4\u003e\n\u003ch4\u003eGlasspathcorrectors for lens telescopes, Newtonians and Schmidt-Cassegrains\u003c\/h4\u003e\n\u003cp\u003eA glasspathcorrector fulfills two purposes: On the one hand, it removes the colour aberrations which are caused by the prisms of the binoviewer at fast telescopes, and on the other hand does it move the focus point outwards so that you can reach focus even at telescopes with little backfocus. And you can use different glasspath correctors to achieve additional magnifications without buying a second pair of eyepieces.\u003c\/p\u003e\n\u003ch4\u003eBaader Glaswegkorrektor (GK) Faktor 1,25 GC Factor 1,25 \/ Factor 1,70 \/ Factor 2,60\u003cbr\u003e\n\u003c\/h4\u003e\n\u003cp\u003eThese three glasspathcorrectors are inserted either into the binoviewer or the T-2-prism. Which one you need depends on the available backfocus. You can find information on how to determine the backfocus of your telescope in the manuals of our binoviewers. Please also note our special 2\" glasspathcorrectors for Newtonians or Lens telescopes and SCs.\u003c\/p\u003e\n\u003cp\u003eThe reduction of the optical length was measured with the 2\" focuser of a Traveler 105mm\/f6 Apochromat with a pair of 35mm ED eyepieces, the Gro؟feld (Giant) Binoviewer with 90° T-2 prism diagonal and the glasspathcorrectors. The measurement was done with the GC placed between prism and binoviewer. If the GC is placed in front of the prism, the optical length is reduced approximately by another 15 mm.\u003cbr\u003e\u003c\/p\u003e\n\u003ctable class=\"data\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eOptical Length\u003c\/th\u003e\n\u003cth\u003ewithout Corrector\u003c\/th\u003e\n\u003cth\u003ewith GC 1:1,25\u003c\/th\u003e\n\u003cth\u003ewith GC 1:1,70\u003c\/th\u003e\n\u003cth\u003ewith GC 1:2,60\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrom the contact surface of the focuser- with 90° T-2 prism\u003c\/td\u003e\n\u003ctd\u003e162 mm (can't reach focus)\u003c\/td\u003e\n\u003ctd\u003e144 mm\u003c\/td\u003e\n\u003ctd\u003e122 mm\u003c\/td\u003e\n\u003ctd\u003e79 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003estraight, with 2\" nosepiece (without prism, important for Newtonians)\u003c\/td\u003e\n\u003ctd\u003e112 mm\u003c\/td\u003e\n\u003ctd\u003e94 mm\u003c\/td\u003e\n\u003ctd\u003e71 mm\u003c\/td\u003e\n\u003ctd\u003e28 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003estraight, with T-2 quick-changer\u003c\/td\u003e\n\u003ctd\u003e123 mm\u003c\/td\u003e\n\u003ctd\u003e105 mm\u003c\/td\u003e\n\u003ctd\u003e82 mm\u003c\/td\u003e\n\u003ctd\u003e39 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eWith these three lens systems, you can solve focus problems of almost all common telescope designs. The lens cell provides both a thread for the Zeiss dovetail of our Gro؟feld (Giant) Bino and the MaxBright® II as well as a T-2 clamping flange for MaxBright® und MaxBright® II! This flange can be clamped between the male and female threaded parts of every T-2 (M 42x0,75) threaded connection. This way, you can start to experience with many accessories which you couldn't use with your telescope before.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cstrong\u003eExample for the use of glasspattcorrectors with the Baader Safety Herschel prism.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch4\u003eGlasspathcorrectors 1:1,25 and 1:1,7\u003c\/h4\u003e\n\u003cp\u003eThe lens units of these correctors are cemented and can be removed from their cell to mount them upside down. The convex (outwards curved) side must always face towards the telescope. The versions for T-2 and Zeiss dovetail only differ in the mounting direction and can be reconfigured, if necessary.\u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg style=\"float: none;\" alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/EN_2456314_2456316_GWK-label_38mm.png?v=1587466321\"\u003e\u003c\/div\u003e\n\u003ch4\u003eZeiss Dovetail (Gro؟feld- (Giant) Binoviewer and MaxBright II, only for GC 1:1,25 and GC 1:1,7\u003c\/h4\u003e\n\u003cp\u003eThe glasspathcorrectors 1.25x and 1.7x are screwed into the Zeiss Ringdovetail at the front of the binoviewer.\u003c\/p\u003e\n\u003ch4\u003eT-2 Coupling Nut (Maxbright®\/Maxbright®II Binoviewer)\u003c\/h4\u003e\n\u003cp\u003eAll glasspathcorrector are installed with the lens configuration B (lens cell points away from the binoviewer). To do so, there is enough space or a matching thread as well in the T-2 star diagonals as in the 1.25\" and 2\" nosepieces. To save optical length, the lenses are not inserted into the binoviewer. This way, the beam splitter inside of the binoviewer can be very close to the front of the housing.\u003c\/p\u003e\n\u003ch4\u003eTelescopes with T-2 thread\u003c\/h4\u003e\n\u003cp\u003eWhenever you can't reach focus with a new accessory for your telescope, because there isn't enough backfocus, you should check if our glasspathcorrectors may be the solution. Almost every telescope manufacturer offers a T-2 adapte for his telescopes. These adapters usually are very short, because they are designed to attach to a DASLR. At exactly this place, our glasspathcorrectors are inserted! We manufacture several eyepiece adapters, spacer rings and adapters with T-2-thread, so that it is almost always possible to create a working adaption.\u003c\/p\u003e\n\u003ch4\u003eCamera lenses\u003c\/h4\u003e\n\u003cp\u003ePerhaps you still own a camera lens with T-2 thread. With many lenses by third-party manufacturers (e.g. Tokina, Soligor, Vivitar etc.) you can remove the bayonet ring and access a T-2 thread. By using a glasspathcorrector and our Variable Locking\/Sliding T-2-focuser or a 1.25\"\/T-2 eyepiece clamp, you can use your 1.25\" prism diagonal and most 1.25\" eyepieces together with your camera lens!\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable class=\"data-table\" id=\"product-attribute-specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr class=\"first odd\"\u003e\n\u003cth class=\"label\"\u003eEAN CODE\u003c\/th\u003e\n\u003ctd class=\"data last\"\u003e4047825027405\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"even\"\u003e\n\u003cth class=\"label\"\u003eMANUFACTURER\u003c\/th\u003e\n\u003ctd class=\"data last\"\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"odd\"\u003e\n\u003cth class=\"label\"\u003eSKU (#)\u003c\/th\u003e\n\u003ctd class=\"data last\"\u003e2456316Z\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"even\"\u003e\n\u003cth class=\"label\"\u003eWEIGHT (NETTO)\u003c\/th\u003e\n\u003ctd class=\"data last\"\u003e0.035\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"odd\"\u003e\n\u003cth class=\"label\"\u003eOUTER CONNECTION (EYEPIECE\/-CAMERA-SIDED)\u003c\/th\u003e\n\u003ctd class=\"data last\"\u003eBarrel, Thread, M34, T-2 (M42 x 0,75)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"even\"\u003e\n\u003cth class=\"label\"\u003e\u003cspan z=\"\" class=\"tooltip\" data-tooltip=\"Die Vergrض؟erung wird oft als die\" in=\"\" r=\"\"\u003eMAGNIFICATION (X)\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd class=\"data last\"\u003e1 : 1,70\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"odd\"\u003e\n\u003cth class=\"label\"\u003eOPTICAL LENGTH (MM)\u003c\/th\u003e\n\u003ctd class=\"data last\"\u003e-65\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"even\"\u003e\n\u003cth class=\"label\"\u003eOPTICAL DESIGN\u003c\/th\u003e\n\u003ctd class=\"data last\"\u003eGlaspath Corrector\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"last odd\"\u003e\n\u003cth class=\"label\"\u003eCOMPATIBLE TELESCOPES\u003c\/th\u003e\n\u003ctd class=\"data last\"\u003eRefractors, Schmidt-Cassegrain, Newton\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\u003cp\u003eBaader Glasspathcorrector 1:1,70 for Baader-Binoviewer with Zeiss ring dovetail (MaxBright® II and Mark V) \u003c\/p\u003e\n\u003ch3\u003eWarranty \u0026amp; Manual\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003e\u003ca rel=\"noopener\" title=\"Baader Warranty\" href=\"https:\/\/astronomyplus.com\/pages\/baader-warranty\" target=\"_blank\"\u003eBaader 2-Year Warranty\u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Baader Planetarium","offers":[{"title":"Default Title","offer_id":50250002333925,"sku":"BAA-GLASS-2Z (Baader #2456316Z)","price":185.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/2456316Z-8-O-N-1.webp?v=1784150729","url":"https:\/\/astronomyplus.com\/products\/baader-glasspathcorrector-1-1-70-for-baader-binoviewer-with-zeiss-ring-dovetail-maxbright%c2%ae-ii-and-mark-v-2456316z","provider":"Astronomy Plus – Telescopes \u0026 Astrophotography Canada","version":"1.0","type":"link"}