{"title":"Binoviewers","description":"","products":[{"product_id":"celestron-stereo-binocular-viewer-93691","title":"Celestron Stereo Binocular Viewer (93691)","description":"\u003ch2 class=\"heading h2 pdp-product-title\"\u003eCelestron Stereo Binocular Viewer\u003c\/h2\u003e\n\u003cp\u003eAdd the Celestron Stereo Binocular Viewer to your repertoire and enjoy celestial views with more contrast and improved detail!\u003cbr\u003e\u003cbr\u003eOur eyes work as a team, and our brains are wired to work with images that both eyes produce together. When we use just one eye to do observations through an optical device, the results are lacking somewhat in detail and contrast. A binoviewer uses two matching eyepieces to allow you to get the most out of your observations. Your eyes will relax, and you’ll find that you can observe for longer periods of time without suffering from eye fatigue.\u003cbr\u003e\u003cbr\u003eThe Celestron Binocular Viewer is well-made, with a rubberized coating to make it easy to grip, even with gloves on. The 22 mm BaK-4 fully multi-coated prisms provide increased light transmission with no vignetting or light cut-off. Each eyepiece holder can be individually focused, and diopter adjustment readings are well marked. The 1.25” insert barrel is threaded for filters, allowing you to use one filter instead of threading them on each individual eyepiece.\u003cbr\u003e\u003cbr\u003eThe Celestron Binocular Viewer weighs about 18 oz and uses approximately 3.5\" of back focus. This is sufficient for most catadioptric telescopes (Schmidt-Cassegrain, Maksutov-Cassegrain, etc.) as well as a good number of refractor-style telescopes. Newtonians and some spotting scopes have the least amount of back focus. Using a binoviewer on these designs may result in the inability to focus to infinity. Remember, binocular viewers require the use of two matched 1.25” eyepieces, which are sold separately.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAdditional Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBinoviewers improve views dramatically, producing a three dimensional effect that you’ll love!\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003cli\u003eUsing two eyes for observing instead of one lets you see more detail, reduces eye fatigue, and increases contrast\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003cli\u003eFor use with catadioptric telescopes and other telescopes with sufficient back focus\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003cli\u003eIncludes an aluminum carry case with foam-lined interior\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003cli\u003eRequires a matching pair of 1.25” eyepieces, sold separately\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable class=\"table-open\" id=\"product-specs-list\" style=\"box-sizing: inherit; border-collapse: collapse; border-spacing: 0px; text-align: left; width: 1200px; color: #333e48; font-family: 'Open Sans', Arial, Helvetica, sans-serif; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003e\n\u003ctbody id=\"spec-block-1\" style=\"box-sizing: inherit;\"\u003e\n\u003ctr style=\"box-sizing: inherit; border-bottom: 1px solid #e4e8ea;\"\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px; width: 300px; font-weight: bold;\"\u003eAperture:\u003c\/td\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px;\"\u003e22mm (0.86\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; border-bottom: 1px solid #e4e8ea;\"\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px; width: 300px; font-weight: bold;\"\u003eIPD Max:\u003c\/td\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px;\"\u003e75mm (2.95\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; border-bottom: 1px solid #e4e8ea;\"\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px; width: 300px; font-weight: bold;\"\u003eIPD Min:\u003c\/td\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px;\"\u003e54mm (2.13\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; border-bottom: 1px solid #e4e8ea;\"\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px; width: 300px; font-weight: bold;\"\u003ePrisms:\u003c\/td\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px;\"\u003eBAK-4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; border-bottom: 1px solid #e4e8ea;\"\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px; width: 300px; font-weight: bold;\"\u003eOptical Coatings:\u003c\/td\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px;\"\u003eFully Multi-Coated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; border-bottom: 1px solid #e4e8ea;\"\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px; width: 300px; font-weight: bold;\"\u003eWeight:\u003c\/td\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px;\"\u003e18 oz (510 g)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; border-bottom: 1px solid #e4e8ea;\"\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px; width: 300px; font-weight: bold;\"\u003eProduct Dimensions:\u003c\/td\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px;\"\u003e120.65mm x 120.65mm x 44.45mm (4.75\" x 4.75\" x 1.75\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; border-bottom: 1px solid #e4e8ea;\"\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px; width: 300px; font-weight: bold;\"\u003eStorage Case Weight:\u003c\/td\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px;\"\u003e11.6 oz (329 g)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: inherit; border-bottom: 0px;\"\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px; width: 300px; font-weight: bold;\"\u003eStorage Case Dimensions:\u003c\/td\u003e\n\u003ctd style=\"box-sizing: inherit; padding: 13px; font-size: 14px; height: 43px;\"\u003e152.4mm x 152.4mm x 69.85mm (6\" x 6\" x 2.75\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eIn the Box\u003c\/h3\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eCelestron Stereo Binocular Viewer\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eWarranty \u0026amp; Manuals\u003c\/h3\u003e\n\u003cp data-mce-fragment=\"1\"\u003e2-Year Warranty\u003c\/p\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":43125751972069,"sku":"CEL-93691","price":364.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/celestron-stereo-binocular-viewer-93691-astronomy-plus.webp?v=1690484642"},{"product_id":"william-optics-binoviewer-package-e-bino-p","title":"William Optics Binoviewer Package (E-BINO-P)","description":"\u003ch1\u003eWilliam Optics Binoviewer Package\u003c\/h1\u003e\n\u003cp\u003eWilliam Optics does it better and especially cheaper! Until today, you could choose only between high-end expensive binoviewers or monocular eyepiece observation. Today you can enjoy the benefits of BaK4 quality binoviewers in your refractor, SCT or Newtonian scope with the William Optics Binoviewer Package including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1.25” Binoviewer with anti-marring compression rings\u003c\/li\u003e\n\u003cli\u003e2x William Optics 20 mm WA 66 deg. eyepieces included (available optionally too)\u003c\/li\u003e\n\u003cli\u003eBarlow nosepiece (1.6x) for easier focusing with most telescopes! It can be mounted on other eyepieces too!\u003c\/li\u003e\n\u003cli\u003eExclusive gift box.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eOr go for the ROCK-BOTTOM price of the OTA version, if you already own a set of eyepieces! The price is very inviting, but the experience of three dimensional two-eyed viewing is even better! https:\/\/youtu.be\/pGIw91gEkQ4\u003c\/p\u003e\n\u003ch4\u003e\u003cbr\u003e\u003c\/h4\u003e\n\u003ch4\u003eWO Fit \u0026amp; Finish\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eWhite powder painting.\u003c\/li\u003e\n\u003cli\u003eLarge chromed thumbscrews and anodized aluminum.\u003c\/li\u003e\n\u003cli\u003eVery useful optional 2x Barlow\/Correctors and extenders are available separately for telescopes with special back-focus issues.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eBAK4 Prisms\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eHigh-quality BaK4 prisms with 20mm clear aperture for maximum brightness and contrast with any telescope.\u003c\/li\u003e\n\u003cli\u003eFully Multi Coated.\u003c\/li\u003e\n\u003cli\u003eAnti-marring brass compression rings for your eyepieces.\u003c\/li\u003e\n\u003cli\u003eIndividual eyepiece focus adjustment.\u003c\/li\u003e\n\u003cli\u003eChoose the Best! Best price!\u003c\/li\u003e\n\u003cli\u003eThe best quality-prism 1.25\" Binoviewers package out there!\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003ePlease note: double check with us if you want to know if you can easily reach focus with any specific William Optics telescope. We cannot guarantee you will reach focus without an optical corrector\/barlow with other brands telescopes; we can only report what other users told us about specific combinations.\u003c\/p\u003e\n\u003cdiv class=\"product attribute description\"\u003e\n\u003cdiv class=\"value\"\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable style=\"box-sizing: border-box; border-color: #ececec; border-spacing: 0px; margin-bottom: 1em; width: 1050px; color: #777777; font-family: 'Roboto Condensed', sans-serif; font-size: medium; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: #ffffff; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003e\n\u003ctbody style=\"box-sizing: border-box;\"\u003e\n\u003ctr style=\"box-sizing: border-box;\"\u003e\n\u003ctd style=\"box-sizing: border-box; border-bottom: 1px solid #ececec; font-size: 0.9em; line-height: 1.3; padding: 0.5em 0.5em 0.5em 0px; text-align: left; color: #666666;\"\u003e\u003cstrong style=\"box-sizing: border-box; font-weight: bolder;\"\u003ePrism material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"box-sizing: border-box; border-bottom: 1px solid #ececec; font-size: 0.9em; line-height: 1.3; padding: 0.5em 0px 0.5em 0.5em; text-align: left; color: #666666;\"\u003eBaK-4 FMC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: border-box;\"\u003e\n\u003ctd style=\"box-sizing: border-box; border-bottom: 1px solid #ececec; font-size: 0.9em; line-height: 1.3; padding: 0.5em 0.5em 0.5em 0px; text-align: left; color: #666666;\"\u003e\u003cstrong style=\"box-sizing: border-box; font-weight: bolder;\"\u003eIP Accomodation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"box-sizing: border-box; border-bottom: 1px solid #ececec; font-size: 0.9em; line-height: 1.3; padding: 0.5em 0px 0.5em 0.5em; text-align: left; color: #666666;\"\u003e54mm to 75mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: border-box;\"\u003e\n\u003ctd style=\"box-sizing: border-box; border-bottom: 1px solid #ececec; font-size: 0.9em; line-height: 1.3; padding: 0.5em 0.5em 0.5em 0px; text-align: left; color: #666666;\"\u003e\u003cstrong style=\"box-sizing: border-box; font-weight: bolder;\"\u003eClear Aperture\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"box-sizing: border-box; border-bottom: 1px solid #ececec; font-size: 0.9em; line-height: 1.3; padding: 0.5em 0px 0.5em 0.5em; text-align: left; color: #666666;\"\u003e20.2mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: border-box;\"\u003e\n\u003ctd style=\"box-sizing: border-box; border-bottom: 1px solid #ececec; font-size: 0.9em; line-height: 1.3; padding: 0.5em 0.5em 0.5em 0px; text-align: left; color: #666666;\"\u003e\u003cstrong style=\"box-sizing: border-box; font-weight: bolder;\"\u003eE.P. holders\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"box-sizing: border-box; border-bottom: 1px solid #ececec; font-size: 0.9em; line-height: 1.3; padding: 0.5em 0px 0.5em 0.5em; text-align: left; color: #666666;\"\u003eHelical focusing, compression rings\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: border-box;\"\u003e\n\u003ctd style=\"box-sizing: border-box; border-bottom: 1px solid #ececec; font-size: 0.9em; line-height: 1.3; padding: 0.5em 0.5em 0.5em 0px; text-align: left; color: #666666;\"\u003e\u003cstrong style=\"box-sizing: border-box; font-weight: bolder;\"\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"box-sizing: border-box; border-bottom: 1px solid #ececec; font-size: 0.9em; line-height: 1.3; padding: 0.5em 0px 0.5em 0.5em; text-align: left; color: #666666;\"\u003e120mm x 112mm x 42mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: border-box;\"\u003e\n\u003ctd style=\"box-sizing: border-box; border-bottom: 1px solid #ececec; font-size: 0.9em; line-height: 1.3; padding: 0.5em 0.5em 0.5em 0px; text-align: left; color: #666666;\"\u003e\u003cstrong style=\"box-sizing: border-box; font-weight: bolder;\"\u003eOptical Path\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"box-sizing: border-box; border-bottom: 1px solid #ececec; font-size: 0.9em; line-height: 1.3; padding: 0.5em 0px 0.5em 0.5em; text-align: left; color: #666666;\"\u003e100mm (4″)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"box-sizing: border-box;\"\u003e\n\u003ctd style=\"box-sizing: border-box; border-bottom: 1px solid #ececec; font-size: 0.9em; line-height: 1.3; padding: 0.5em 0.5em 0.5em 0px; text-align: left; color: #666666;\"\u003e\u003cstrong style=\"box-sizing: border-box; font-weight: bolder;\"\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"box-sizing: border-box; border-bottom: 1px solid #ececec; font-size: 0.9em; line-height: 1.3; padding: 0.5em 0px 0.5em 0.5em; text-align: left; color: #666666;\"\u003eapprox. 520g (without eyepieces)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eIn the Box\u003c\/h3\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eWilliam Optics Binoviewer Package\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e2 x William Optics 20 mm WA 66 deg. eyepieces\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eBarlow nosepiece (1.6x)\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eExclusive gift box\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eWarranty \u0026amp; Manuals\u003c\/h3\u003e\n\u003cp data-mce-fragment=\"1\"\u003eWilliam Optics 2-Year Warranty\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"William Optics","offers":[{"title":"Default Title","offer_id":43125781102821,"sku":"WO-E-BINO-P","price":509.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/william-optics-binoviewer-package-e-bino-p-astronomy-plus-1.webp?v=1690485847"},{"product_id":"baader-mark-v-grossfeld-giant-binocular-2456410","title":"Baader Mark V Großfeld (Giant)-Binocular (BAA-MKV)","description":"\u003ch2\u003eBaader Mark V Großfeld (Giant)-Binocular\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFifth edition of the former Carl Zeiss giant binocular with 30 mm prisms - our most elaborate binocular\u003c\/li\u003e\n\u003cli\u003eWith recalculated 7-layer dereflective multi-coatings on all air-glass surfaces\u003c\/li\u003e\n\u003cli\u003eHigh performance beam-splitter with dielectric splitter layer\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eIncluding 2x 1.25\" ClickLock eyepiece clamps, 1x TQC Heavy-duty T-2 quick changer and 1x Mark V Bino storage case\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eAlso known as the Zeiss-Grossfeld Binoviewer or Zeiss-Widefield Binoviewer, is quite simply the best binocular viewer available today.\u003c\/p\u003e\u003cp\u003eThis is the fifth edition of the former Carl Zeiss with 30 mm prisms, each pair of bino viewers has 7 layer coatings on all glass to air surfaces for extremely bright viewing and great contrast levels.\u003c\/p\u003e\u003cp\u003e\u003cimg src=\"https:\/\/www.365astronomy.com\/image\/cache\/wp\/ij\/content\/2456410-mark-v-baader-giant-binocular-d.webp\"\u003e\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eGlass Path Corrector Compatible\u003c\/strong\u003e: Three different glass path correctors are available for these Giant Binocular viewers (#2456314, #2456316 and #2456317), this means that unlike other designs, these can achieve focus on any type of Refractor or Newtonian telescope, the compensators are a proprietary design by Carl Zeiss and AstroPhysics and help correct aberrations that are inherent in binocular viewers, in addition to this correction, they also help reduce the amount of back focus needed.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eT-2 Astro System Compatible\u003c\/strong\u003e: The front T-threaded ring enables the Giant Binocular Viewer to fit all existing telescope makes with the shortest possible path length possible, and through the T-2 Astro System there is a multitude of accessories and fittings (such as our Maxbright T-2 Diagonal #2456100) and it can be attached to any number of different threads such as Vixen, Takahashi or Pentax and many others.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eClicklock Clamp:\u003c\/strong\u003e This viewer comes standard with a ClickLock eyepiece clamp on each side to fit any 1.25\" eyepiece, even long focal length and very wide field examples, so there is no difficulty at night trying to find any locking screws and the eyepieces are held rigid throughout your viewing session.\u003c\/p\u003e\u003ch3\u003eTecnical Specifications \u003c\/h3\u003e\u003cp\u003e         GENERAL INFORMATION     SKU (#) 2456410   Weight in Kg 1.4    \u003c\/p\u003e\u003ch3\u003eIn the Box\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eBaader Mark V Großfeld (Giant)-Binocular (#2456410)\u003c\/li\u003e\n\u003cli\u003e2x Baader ClickLock Eyepiece Clamp 1¼\" with built in diopter-adjustment (#2458100)\u003c\/li\u003e\n\u003cli\u003e1x Baader Heavy Duty T-2 QuickChanger (T-2 part #06A) (#2456313A)\u003c\/li\u003e\n\u003cli\u003e1x Mark V Bino storage-case (#2456415)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003ch3\u003eWarranty \u0026amp; Manuals\u003c\/h3\u003e\u003cp\u003e\u003ca href=\"https:\/\/www.baader-planetarium.com\/en\/downloads\/dl\/file\/id\/433\/product\/1264\/mark_v_gro_feld_giant_binocular_user_manual_12_pager.pdf\" target=\"_blank\" title=\"null\"\u003eUser manual\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e2-Year Warranty\u003c\/p\u003e","brand":"Baader Planetarium","offers":[{"title":"Default Title","offer_id":44588159369445,"sku":"BAA-MKV (2456410)","price":2075.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/baader-mark-v-grossfeld-giant-binocular-2456410-astronomy-plus-1.png?v=1715808269"},{"product_id":"baader-maxbright®-ii-binoviewer-with-case-bino","title":"Baader MaxBright® II Binoviewer with Case (BINO)","description":"\u003ch1 class=\"product-title\"\u003eBaader MaxBright® II Binoviewer with Case (BINO)\u003c\/h1\u003e\n\u003cul\u003e\n\u003cli\u003e27mm prisms with 26 \/ 25,5mm clear aperture, for all 1,25\"-eyepieces – up to focal lengths of 35mm\u003c\/li\u003e\n\u003cli\u003eErgonomically designed ClickLock\u003csup\u003e®\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003eeyepiece clamps with diopter adjustment\u003c\/li\u003e\n\u003cli\u003eBaader Astro T-2 System™ connector thread (M 42 x 0.75) and Zeiss micro-bayonet for the shortest possible connection to (almost) all existing telescope systems\u003c\/li\u003e\n\u003cli\u003eScope of delivery: Baader MaxBright\u003csup\u003e®\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003eII Binoviewer with adapters to T-2 and Zeiss micro-bayonet in a padded carrying case (image coming soon)\u003c\/li\u003e\n\u003cli\u003eOptical tube length: 110 mm (+\/- 1 mm tolerance)\u003c\/li\u003e\n\u003cli\u003eWeight: 595g (200g lighter than Mark V)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg style=\"float: none;\" height=\"413\" width=\"413\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/maxbright-highlights-en_1024x1024.jpg?v=1586353134\"\u003e\u003c\/div\u003e\n\u003cp\u003eBack in 1996, we discovered for ourselves the benefits of observing with two eyes.  The improvements are dramatic in the reduction of eye-strain, and the ability to comfortably concentrate on objects and discern faint contrasts.  Using two eyes also serves to compensate for floaters and astigmatism, and in effect reduces the visual noise in images.  These effects are equally dramatic for both planetary and deep sky viewing.   Once you try viewing with two eyes, you will never want to go back to single-eye viewing again.  \u003c\/p\u003e\n\u003cp\u003eThe MaxBright\u003csup\u003e®\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003eII Binoviewer incorporates the knowledge acquired during thirty years of building astronomical binoviewers. It is superior to cheaper models in many details.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe housing of the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e27mm large prisms\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis made with our own die casting molds, using Carl Zeiss production drawings. The non-slip leather finish provides extra grip when holding the binoviewer with heavy eyepieces in your hand.\u003c\/li\u003e\n\u003cli\u003eOn the eyepiece side, the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003enewly designed, self-centering Clicklock\u003csup\u003e®\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003eeyepiece clamps with diopter adjustment\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eare immediately noticeable. Thanks to the ergonomic design, you can blindly distinguish between clamping and diopter compensation even in the dark. The inner parts are made of stainless steel for maximum stability. The high-quality eyepiece clamps are only the last part of the precisely collimated optical system, which is designed for highest magnifications. This is the only way to achieve the almost three-dimensional image and relaxed observation expected from a binoviewer.\u003c\/li\u003e\n\u003cli\u003eAll optical surfaces of the Maxbright\u003csup\u003e®\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003eII feature a\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e7-layer multi-coating\u003c\/strong\u003e. The prism chairs (mounts) of the prisms are constructed like those of the Mark V Großfeld (Giant)-Binocular. The\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eclear aperture\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e26 mm on the telescope side\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eand\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e25,5mm on the eyepiece side\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003e– even our 35 mm eudiascopic eyepieces are illuminated without vignetting. In comparison to models with smaller prisms you can see a much larger part of the sky at the same magnification – similar to our Mark V Großfeld (Giant)-Binocular.\u003c\/li\u003e\n\u003cli\u003eOn the telescope side, either a\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eT-2 cap nut\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eor a\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003edovetail ring with original Zeiss micro bayonet\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003eare available – both connection options are included in the scope of delivery and allow a very compact adaptation to all common threads as well as our T-2 prisms and mirrors. Compared to fixed nosepieces, this effectively saves a lot of backfocus. The MaxBright\u003csup\u003e®\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003eII is compatible with all Baader Glasspathcorrectors. According to optical calculations by Carl Zeiss, these correction lens systems shift the focus outwards so that you can still reach focus despite the approximately 11 cm back focus (the required inward travel of the focuser) of the binoviewer. They also compensate for the colour error that would otherwise be introduced through the prisms when using telescopes between f\/4 and f\/7. Glasspathcorrectors are not simple Barlow lenses, even if they resemble them. For this reason, in Germany the name\u003cspan\u003e \u003c\/span\u003e\u003cem\u003eGlaswegkorrektor\u003c\/em\u003e\u003csup\u003e®\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003eis a protected trademark by Baader Planetarium.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIn combination with a lens telescope or a Schmidt-Cassegrain we recommend the Baader T-2 Stardiagonal (Zeiss) Prism with BBHS ® coating (T-2 part #01B) (#2456095) or the Baader FlipMirror II Star Diagonal (#2458055) , to achieve a compact telescope adaptation. In addition, you can then choose a matching Glasspathcorrector.\u003c\/p\u003e\n\u003cp\u003eTo select the right Glasspathcorrector, you need to know the backfocus of your telescope. You can read how to do this in the Manual of the Maxbright® II Binoviewer.\u003cbr\u003e\u003cbr\u003eFor Newtonians,we recommend either the large 2\" Glasspathcorrector® 1,7x for Newtons (#2456300) or the Glasspathcorrector 1:2,60 for Baader-Binoviewer with Zeiss ring dovetail (MaxBright® II and Mark V) (#2456317) .\u003cbr\u003e\u003cbr\u003eFor SCs or lens telescopes we recommend either the 2\" Glasspathcorrector® 1,8x for Refractors and SC's (#2456305) or the two T-2 Glasspathcorrectors Glasspathcorrector 1:1,25 for Baader-Binoviewer with T-2 thread (MaxBright® II and MaxBright®) (#2456314) and Glasspathcorrector 1:1,70 for Baader-Binoviewer with T-2 thread (MaxBright II® and MaxBright®) (#2456316) . The 1.25x Glasspathcorrector is used on lens telescopes mainly for removing the colour aberrations, which would otherwise be introduced by the long light path through the prisms of the binoviewer.\u003cbr\u003e\u003cbr\u003eYou don't necessarily need a Glasspathcorrector for Schmidt-Cassegrains with f\/10. Especially for lower magnifications and thus larger fields vof view, the Alan Gee Telecompressor Mark II (T-2 part #20) (#2454400) is more interesting: It shortens the focal ratio to ca. f\/5,9, which gives you a brighter image and a larger field of view. So, a C8 almost becomes a rich-field telescope – for comfortable observations with both eyes open!\u003c\/p\u003e\n\u003ch4\u003eBinoviewers and accessories\u003c\/h4\u003e\n\u003cp\u003eBaader Planetarium has more than 30 years of experience in building binoviewers. Therefore we do not offer simple modified microscope binoviewers without further accessories, but complete system solutions.\u003c\/p\u003e\n\u003cp\u003eWith monocular vision, your brain can only use a fraction of its \"computing capacity\". In fact, there is a kind of \"emergency mode\" in the brain so that even image information obtained with one eye can be distributed to both halves of the brain, but the brain has no way of correctly interpreting the \"image errors\" and above all the \"nerve noise\" that inevitably occurs during energy transport - just like with a CCD image!\u003c\/p\u003e\n\u003cp\u003eJust as the user of a CCD camera or webcam superimposes several images in the computer, i.e. \"stacks\" images, the brain can also superimpose the different information from both eyes during binocular vision and in this way - each time in milliseconds - eliminate the imperfections that are not part of the real image.\u003c\/p\u003e\n\u003cp\u003eSo it is no wonder that after observing with one eye for a few minutes, you will have to take a rest that your brain demands because it is simply overloaded by the extremely concentrated viewing. In binocular vision, this problem does not exist! You can look as long as you want and remain relaxed. Even with severely impaired vision in one eye, the reduced tension results in an enormous gain in observation quality.\u003c\/p\u003e\n\u003cp\u003eOne often hears the criticism that using a binoviewer would split the light into two visual channels and that only 50% of the light intensity reaches each eye. This argument prevents many people from trying out for themselves what a revolutionary effect binocular vision has. But what is forgotten is that 50% of the light reaches each eye and that the energy from both eyes is \"reunited in the brain\" (more precisely, in the back of the head).\u003c\/p\u003e\n\u003cp\u003eWhat you then see is by no means 50% darker than it is claimed. The real gain is only visible for someone who has tried it out for himself and has familiarized himself with this kind of seeing for a few minutes. Ultimately, the object doesn't look darker, but becomes visible effortless, more detailed and - more beautiful.\u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg style=\"float: none;\" height=\"536\" width=\"536\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/maxbright-accessories_1024x1024.jpg?v=1586353163\"\u003e\u003c\/div\u003e\n\u003ch3\u003eTechnical Specification\u003c\/h3\u003e\n\u003ctable id=\"product-attribute-specs-table\" class=\"data-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth class=\"specheader\" colspan=\"2\"\u003e\u003cstrong\u003eGENERAL\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eMANUFACTURER\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eSKU (#)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e2456460\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eEAN CODE\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e4047825042873\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eWEIGHT (KG)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e0,595\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"specheader\" colspan=\"2\"\u003e\u003cstrong\u003eSPECIFICATIONS\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eAPERTURE (MM)\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eTeleskopseitig 26 mm, Okularseitig 25,5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003ePRISMS\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e27 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eLENS COATINGS\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e7-lagig Mehrschicht-entspiegelt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003ePRISM COATINGS\u003c\/th\u003e\n\u003ctd class=\"data\"\u003e7-lagig Mehrschicht-entspiegelt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"label\"\u003eINCLUDED ACCESSORIES\u003c\/th\u003e\n\u003ctd class=\"data\"\u003eABS hard plastic case, T-2 thread adapter, Zeiss ring dovetail\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Baader Planetarium","offers":[{"title":"MaxBright® II without Accessories","offer_id":45992078967013,"sku":"BAA-BINO-0 (Baader #2456460)","price":698.0,"currency_code":"CAD","in_stock":true},{"title":"MaxBright® II + 1 1\/4\" \/ T-2 nose piece","offer_id":45992078999781,"sku":"BAA-BINO-1 (Baader #2456460A)","price":721.0,"currency_code":"CAD","in_stock":true},{"title":"MaxBright® II + nose piece 2\" \/ T-2 nose piece","offer_id":45992079032549,"sku":"BAA-BINO-2 (Baader #2456460B)","price":727.0,"currency_code":"CAD","in_stock":true},{"title":"MaxBright® II + Glasspathcorrector 1:1.25 with T-2 thread and 1¼\" \/ T-2 nose piece","offer_id":45992079065317,"sku":"BAA-BINO-11 (Baader #2456461)","price":845.0,"currency_code":"CAD","in_stock":true},{"title":"MaxBright® II + Glasspathcorrector 1:1.25 with T-2 thread and 2\" \/ T-2 nose piece","offer_id":45992079098085,"sku":"BAA-BINO-21 (Baader #2456462)","price":845.0,"currency_code":"CAD","in_stock":true},{"title":"MaxBright® II + Glasspathcorrector 1:1.7 with T-2 thread and 1¼\" \/ T-2 nose piece","offer_id":45992079130853,"sku":"BAA-BINO-12 (Baader #2456463)","price":852.0,"currency_code":"CAD","in_stock":true},{"title":"MaxBright® II + Glasspathcorrector 1:1.7 with T-2 thread and 2\" \/ T-2 nose piece","offer_id":45992079163621,"sku":"BAA-BINO-22 (Baader #2456464)","price":852.0,"currency_code":"CAD","in_stock":true},{"title":"MaxBright® II + Glasspathcorrector 1:2.6 and 1¼\" \/ T-2 nose piece","offer_id":45992079196389,"sku":"BAA-BINO-13 (Baader #2456465)","price":859.0,"currency_code":"CAD","in_stock":true},{"title":"MaxBright® II + Glasspathcorrector 1:2.6 and 2\" \/ T-2 nose piece","offer_id":45992079229157,"sku":"BAA-BINO-23 (Baader #2456466)","price":859.0,"currency_code":"CAD","in_stock":true},{"title":"MaxBright® II + special accessories","offer_id":45992079261925,"sku":"BAA-BINO-S (Baader #2456460S)","price":1143.0,"currency_code":"CAD","in_stock":true},{"title":"MaxBright® II + two 6mm Classic Ortho eyepieces","offer_id":45992079294693,"sku":"BAA-BINO-S6 (Baader #2456467)","price":800.0,"currency_code":"CAD","in_stock":true},{"title":"MaxBright® II + two 10mm Classic Ortho eyepieces","offer_id":45992079327461,"sku":"BAA-BINO-S10 (Baader #2456468)","price":800.0,"currency_code":"CAD","in_stock":true},{"title":"MaxBright® II + two 18mm Classic Ortho eyepieces","offer_id":45992079360229,"sku":"BAA-BINO-S18 (Baader #2456469)","price":800.0,"currency_code":"CAD","in_stock":true},{"title":"MaxBright® II + two 32mm Classic Plossl eyepieces","offer_id":45992079392997,"sku":"BAA-BINO-S32 (Baader #2456470)","price":800.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/random5.webp?v=1743712901"},{"product_id":"orion-premium-linear-binoviewer-1-25-used-ori-bino-u","title":"Orion Premium Linear BinoViewer 1.25'' - USED (ORI-BINO-U)","description":"\u003ch1\u003eOrion Premium Linear BinoViewer 1.25'' - USED\u003c\/h1\u003e\n\u003ch2\u003e\u003cspan style=\"color: #fc0404;\"\u003e\u003cstrong\u003eBinoviewer in perfect condition.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan style=\"color: #000000;\"\u003eThe Orion Premium Linear BinoViewer is a cutting-edge binocular viewer that offers immersive, 3D-like views for both astronomical and daytime observing, using any two 1.25\" eyepieces. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #000000;\"\u003eUnlike traditional binoviewers, it features a zero-backfocus design, making it compatible with all telescope types — even Newtonians — without needing extender or Barlow lenses. Its innovative linear sliding mechanism for interpupillary distance adjustment avoids collimation issues common in folding-body viewers, ensuring consistent alignment and comfort. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #000000;\"\u003eThe unit employs a dielectric-coated beam-splitting mirror instead of prisms, enhancing image contrast, brightness, and reducing optical aberrations. Self-centering twist-tight eyepiece collars make setup easy and secure, and a helical diopter adjustment on the right eyepiece ensures precise focus.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #000000;\"\u003e Four internal lanthanum lenses further suppress chromatic aberration for clear, color-accurate viewing. Housed in a sturdy waterproof case, this viewer combines convenience, optical precision, and compatibility — revolutionizing how you experience the night sky or scenic views.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan style=\"color: #000000;\"\u003eTechnical Specifications\u003c\/span\u003e\u003c\/h3\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\" data-end=\"1914\" data-start=\"101\"\u003e\n\u003cthead data-end=\"221\" data-start=\"101\"\u003e\n\u003ctr data-end=\"221\" data-start=\"101\"\u003e\n\u003cth data-col-size=\"sm\" data-end=\"142\" data-start=\"101\"\u003e\u003cstrong data-end=\"120\" data-start=\"103\"\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth data-col-size=\"md\" data-end=\"221\" data-start=\"142\"\u003e\u003cstrong data-end=\"155\" data-start=\"144\"\u003eDetails\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody data-end=\"1914\" data-start=\"344\"\u003e\n\u003ctr data-end=\"464\" data-start=\"344\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"385\" data-start=\"344\"\u003e\u003cstrong data-end=\"372\" data-start=\"346\"\u003eEyepiece Compatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-end=\"464\" data-start=\"385\" data-col-size=\"md\"\u003eAccepts any two 1.25\" telescope eyepieces (sold separately)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"585\" data-start=\"465\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"506\" data-start=\"465\"\u003e\u003cstrong data-end=\"500\" data-start=\"467\"\u003eInterpupillary Distance (IPD)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-end=\"585\" data-start=\"506\" data-col-size=\"md\"\u003eAdjustable from 58mm to 74mm with engraved scale\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"706\" data-start=\"586\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"627\" data-start=\"586\"\u003e\u003cstrong data-end=\"611\" data-start=\"588\"\u003eOptical Path Design\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-end=\"706\" data-start=\"627\"\u003eBeam-splitting mirror (dielectric-coated); no prisms used\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"827\" data-start=\"707\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"748\" data-start=\"707\"\u003e\u003cstrong data-end=\"732\" data-start=\"709\"\u003eMirror Reflectivity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-end=\"827\" data-start=\"748\" data-col-size=\"md\"\u003e99% dielectric coating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"948\" data-start=\"828\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"869\" data-start=\"828\"\u003e\u003cstrong data-end=\"853\" data-start=\"830\"\u003eInternal Lens Glass\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-end=\"948\" data-start=\"869\"\u003eFour elements made of lanthanum glass to reduce chromatic aberration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"1068\" data-start=\"949\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"990\" data-start=\"949\"\u003e\u003cstrong data-end=\"973\" data-start=\"951\"\u003eDiopter Adjustment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-end=\"1068\" data-start=\"990\" data-col-size=\"md\"\u003eRight eyepiece side features a helical diopter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"1189\" data-start=\"1069\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"1110\" data-start=\"1069\"\u003e\u003cstrong data-end=\"1096\" data-start=\"1071\"\u003eBackfocus Requirement\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-end=\"1189\" data-start=\"1110\" data-col-size=\"md\"\u003eNone required; works with any telescope type, including Newtonians\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"1310\" data-start=\"1190\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"1231\" data-start=\"1190\"\u003e\u003cstrong data-end=\"1207\" data-start=\"1192\"\u003eBarrel Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-end=\"1310\" data-start=\"1231\" data-col-size=\"md\"\u003e1.25\" tapered barrel, threaded for filters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"1431\" data-start=\"1311\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"1352\" data-start=\"1311\"\u003e\u003cstrong data-end=\"1330\" data-start=\"1313\"\u003eMounting Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-end=\"1431\" data-start=\"1352\"\u003eFits standard 1.25\" focusers or diagonals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"1552\" data-start=\"1432\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"1473\" data-start=\"1432\"\u003e\u003cstrong data-end=\"1444\" data-start=\"1434\"\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-end=\"1552\" data-start=\"1473\" data-col-size=\"md\"\u003e1 lb. 8 oz. (680 grams)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"1673\" data-start=\"1553\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"1594\" data-start=\"1553\"\u003e\u003cstrong data-end=\"1571\" data-start=\"1555\"\u003eHousing Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-end=\"1673\" data-start=\"1594\" data-col-size=\"md\"\u003eSliding linear housing for IPD; not folding-type\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"1794\" data-start=\"1674\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"1715\" data-start=\"1674\"\u003e\u003cstrong data-end=\"1700\" data-start=\"1676\"\u003eIncluded Accessories\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-end=\"1794\" data-start=\"1715\"\u003eWaterproof hard carrying case (eyepieces and diagonal sold separately)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"1914\" data-start=\"1795\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"1835\" data-start=\"1795\"\u003e\u003cstrong data-end=\"1821\" data-start=\"1797\"\u003eRecommended Diagonal\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-end=\"1914\" data-start=\"1835\" data-col-size=\"md\"\u003eOrion Pentaprism 90° 1.25\" Diagonal (for correctly oriented images)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cspan style=\"color: #000000;\"\u003eIn the Box\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"color: #000000;\"\u003eBinoviewer\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #000000;\"\u003eHard case with customized foam\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #000000;\"\u003eProtective caps\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Orion","offers":[{"title":"Default Title","offer_id":46748326887653,"sku":"ORI-OBINO-BOND","price":400.0,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/IMG_20250509_161334_2.jpg?v=1777043659"},{"product_id":"explore-scientific-linear-binoviewer-for-telescopes-es-binov","title":"Explore Scientific Linear BinoViewer for Telescopes (ES-BINOV)","description":"\u003ch1\u003eExplore Scientific Linear BinoViewer for Telescopes\u003c\/h1\u003e\n\u003cp\u003eThe BinoViewer is a 1.25-inch device that uses two matching eyepieces \u003cem\u003e(eyepieces not included)\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003eto give you AWESOME two-eyed views through your telescope. Because our minds are designed to see the world with both eyes open, when you gaze through a telescope with both eyes, the view is much better.\u003c\/p\u003e\n\u003cp\u003eThe Explore Scientific BinoViewer features sliding inter-pupillary-distance adjustment, twist locks to keep your eyepieces safely installed, and a diopter adjustment for one eye. Because it's parfocal, you can use a single wide-view eyepiece to center on your target, then switch to the BinoViewer to enjoy an awe-inspiring view. The BinoViewer has been tested on a number of refractors, reflectors and SCTs and worked on them all.\u003c\/p\u003e\n\u003ch1\u003eTechnical Specifications\u003c\/h1\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eEyepiece Format\u003c\/td\u003e\n\u003ctd\u003e1.25\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eEyepiece Capacity\u003c\/td\u003e\n\u003ctd\u003e2 matching eyepieces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterpupillary Adjustment\u003c\/td\u003e\n\u003ctd\u003eSliding IPD adjustment\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eEyepiece Retention\u003c\/td\u003e\n\u003ctd\u003eTwist-lock holders\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiopter Adjustment\u003c\/td\u003e\n\u003ctd\u003eYes (one side)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eParfocal Design\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eTelescope Compatibility\u003c\/td\u003e\n\u003ctd\u003eRefractors, Reflectors, SCTs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eIn the Box\u003c\/h3\u003e\n\u003cp\u003e-Explore Scientific Linear BinoViewer for Telescopes\u003c\/p\u003e\n\u003ch3\u003eWarranty \u0026amp; Manual\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"Explore%20Scientific%20Linear%20BinoViewer%20for%20Telescopes\" target=\"_blank\" title=\"https:\/\/youtu.be\/xVheUGMspYA?si=_iQ8qYAqXGNkuv7x\" rel=\"noopener\"\u003eTutorial\u003c\/a\u003e\u003cbr\u003e\u003ca href=\"https:\/\/istronomyplus.com\/pages\/explore-scientific-warranty\" rel=\"noopener\" target=\"_blank\"\u003eExplore Scientific 1 Year Warranty\u003c\/a\u003e\u003c\/p\u003e","brand":"Explore Scientific","offers":[{"title":"Default Title","offer_id":49559620780261,"sku":"ES-BINOV","price":700.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/ES-BINOV_Binoviewer_7.webp?v=1781718305"},{"product_id":"baader-glasspathcorrector-1-1-25-for-baader-binoviewer-maxbright®-ii-and-mark-v","title":"Baader Glasspathcorrector 1:1,25 for Baader-Binoviewer (MaxBright® II and Mark V) (2456314Z)","description":"\u003ch1\u003eBaader Glasspathcorrector 1:1,25 for Baader-Binoviewer with Zeiss ring dovetail\u003c\/h1\u003e\n\u003cul\u003e\n\u003cli\u003eGlasspathcorrector Factor 1.25. Optical path length: \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;\"\u003e‰¥-30 mm\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003eInsert diameter: ˆ… 38 mm\u003c\/li\u003e\n\u003cli\u003eSuitable to insert into the Baader MaxBright® II Binoviewer w\/Zeiss Microbayonett 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 Glasspathcorrector is primarily intended to correct the prismatic color fringing and slight spherical overcorrection that occurs due to the long glasspath 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 src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0267\/1172\/0013\/files\/EN_2456314_2456316_GWK-label_38mm.png?v=1587466321\" alt=\"\" style=\"float: none;\"\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 id=\"product-attribute-specs-table\" class=\"data-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\"\u003e4047825027399\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\"\u003e2456314Z\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\"\u003e0.018\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 r=\"\" in=\"\" data-tooltip=\"Die Vergrض؟erung wird oft als die\" class=\"tooltip\" z=\"\"\u003eMAGNIFICATION (X)\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd class=\"data last\"\u003e1 : 1,25\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‰¥-30\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\u003eGlasspathcorrector 1:1,25 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:\/\/istronomyplus.com\/pages\/baader-warranty\" target=\"_blank\"\u003eBaader 2-Year Warranty\u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"Baader Planetarium","offers":[{"title":"Default Title","offer_id":50248664940773,"sku":"BAA-GLASS-1Z (Baader #2456314Z)","price":178.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/2456314Z-8-O-N-1.webp?v=1784150206"},{"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:\/\/istronomyplus.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"},{"product_id":"sky-rover-100-apo-bino-45-85245","title":"Sky Rover 100 APO BINO 45° (85245)","description":"\u003ch1\u003eSky Rover 100 APO BINO 45\/90° \u003c\/h1\u003e\n\u003cp\u003e\u003cspan\u003eSky Rover 100 APO BINO, it is one of the most popular binoculars. With a super-large diameter of 100mm, the increase of light flux will make the object you observe brighter. It is compatible with most eyepieces on the market, making it more convenient for you to use.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e100mm super-large caliber\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eDoublet elements, air-spaced apochromatic, including a piece of Super ED\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eSuper large prism\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eReplaceable eyepiece\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003ePortable and compact\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/7_5465d510-e3b4-4ce6-a5b1-08aeb3f8fc57.webp?v=1788017498\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e(1) UF18mm eyepieces                     (2) Holes for finder installation                 (3) Aluminum magnesium alloy body                  (4) Portable handle              (5) Connector for base\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/D_cca1ca1b-26b3-4ec5-b2bd-efe2cd99e3ef.webp?v=1788016067\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch3\u003eIn the Box\u003c\/h3\u003e\n\u003cp\u003e-UF 18mm Eyepiece (2x)\u003cbr\u003e-Hard case (1x)\u003c\/p\u003e\n\u003ch3\u003eWarranty \u0026amp; Manual\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/istronomyplus.com\/pages\/sky-rover-optics-warranty\" target=\"_blank\" title=\"Sky Rover Optics Warranty\" rel=\"noopener\"\u003eSky Rover's 2 years warranty.\u003c\/a\u003e\u003c\/p\u003e","brand":"Sky Rover Optics","offers":[{"title":"Default Title","offer_id":52293300322533,"sku":"SRO-85245","price":3821.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/4_d4bc0012-2f12-4c3a-b70b-479ec2a289f6.webp?v=1788017583"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/collections\/binoviewers-astronomy-plus_9e037b66-5c47-4d25-9dcb-4c49b6ab485f.png?v=1715807862","url":"https:\/\/istronomyplus.com\/collections\/binoviewers.oembed","provider":"Astronomy Plus – Telescopes \u0026 Astrophotography Canada","version":"1.0","type":"link"}