{"title":"Image correctors for telescopes and astrophotography","description":"\u003cp\u003eBrowse our Image correctors for telescopes and astrophotography collection. Hot Sale.\u003c\/p\u003e","products":[{"product_id":"askar-103apo-1x-full-frame-flattener-103apo-1-fff","title":"Askar 103APO 1x Full-frame Flattener (103APO-1-FFF)","description":"\u003ch2\u003eAskar 103APO 1x Full-frame Flattener\u003c\/h2\u003e\n\u003cp\u003eThe Askar 103 APO comes with three optional premium accessories, a 1.0x flattener, a 0.8x reducer, and a 0.6x reducer. Introduced here is the 1.0x flattener， which is optimized for the Askar 103APO， and can provide more possibilities for telescope use.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThe 1x flattener does not change the telescope's focal ratio itself. After connecting with the Askar 103APO, it still maintained a focal length of 6.8. The flattener corrects field curvature and coma, resulting in flatter field edges and finer star points.\u003c\/p\u003e\n\u003cp\u003eThe 1.0x flattener adopts a triplet design and supports a 44mm full-frame image circle. The overall weight is 0.58kg. The back focus from the M48 thread is a standard 55mm. The front thread is M84*1. At the camera end, it is equipped with M54*0.75 and M48*0.75 two sizes of adapters, which are convenient for connection. At the same time, it has a built-in M48*0.75 2-inch filter thread, which can be directly installed and used. The overall CNC machined, both end threaded metal caps prevent ash when not in use.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cp class=\"ql-align-center\"\u003e\u003cstrong\u003e（After attaching）103APO Focal length\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"ql-align-center\"\u003e\u003cstrong\u003e700.4mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"ql-align-center\"\u003e\u003cstrong\u003e（After attaching）103APO Focal ratio\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"ql-align-center\"\u003e\u003cstrong\u003ef\/6.8\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"ql-align-center\"\u003e\u003cstrong\u003eLens Number\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"ql-align-center\"\u003e\u003cstrong\u003eTriplet design\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"ql-align-center\"\u003e\u003cstrong\u003eBack Focus\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"ql-align-center\"\u003e\u003cstrong\u003e55mm（from the base of M48 male thread）\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"ql-align-center\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"ql-align-center\"\u003e\u003cstrong\u003e0.58kg\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"ql-align-center\"\u003e\u003cstrong\u003eRear-end thread type\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"ql-align-center\"\u003e\u003cstrong\u003eM54×0.75\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"ql-align-center\"\u003e\u003cstrong\u003eM54×0.75-M48×0.75(M48×0.75 filter thread inside)\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003eIn the Box\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAskar 103APO 1x Full-frame Flattener\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWarranty \u0026amp; Manuals\u003c\/h3\u003e\n\u003cp\u003eAskar Warranty\u003c\/p\u003e","brand":"Askar","offers":[{"title":"Default Title","offer_id":53073510072601,"sku":"map1787937835684","price":144.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/7054\/6457\/files\/askar-103apo-1x-full-frame-flattener-103apo-1-fff_1.webp?v=1787937840"},{"product_id":"player-one-solar-fast-tilter-sft","title":"Player One Solar Fast Tilter (SFT)","description":"\u003ch1\u003ePlayer One Solar Fast Tilter\u003c\/h1\u003e\n\u003cp class=\"tgt color_text_0 un-step-trans\" data-section=\"0\"\u003e\u003cspan class=\"tgt color_text_0\" data-section=\"0\" data-sentence=\"0\" data-group=\"0-0\"\u003eEvery fan of solar narrowband imaging has been tormented by Newton rings.\u003c\/span\u003e\u003cspan class=\"tgt color_text_0\" data-section=\"0\" data-sentence=\"1\" data-group=\"0-1\"\u003e\u003cspan\u003e \u003c\/span\u003eAlthough our camera has integrated sensor tilter plate, there are still two problems that have not been completely solved:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"tgt color_text_0 un-step-trans\" data-section=\"2\"\u003e\u003cstrong\u003e\u003cem\u003e\u003cspan class=\"tgt color_text_0\" data-section=\"2\" data-sentence=\"0\" data-group=\"2-0\"\u003e1. It takes a lot of time to adjust\u003c\/span\u003e\u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"tgt color_text_0 un-step-trans\" data-section=\"4\"\u003e\u003cstrong\u003e\u003cem\u003e\u003cspan class=\"tgt color_text_0\" data-section=\"4\" data-sentence=\"0\" data-group=\"4-0\"\u003e2. Beginners don’t know how to adjust the sensor tilter plate.\u003c\/span\u003e\u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"tgt color_text_0 un-step-trans\" data-section=\"6\"\u003e\u003cspan class=\"tgt color_text_0\" data-section=\"6\" data-sentence=\"0\" data-group=\"6-0\"\u003eIn order to completely solve these two problems and provide a more convenient experience for the majority of solar photography enthusiasts, we officially released this innovative new product:\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eSolar Fast Tiler\u003c\/strong\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eSolar Fast Tilter is an innovative patented product in Player One solar product line. I will brings very convenient tilt operation in solar imaging!\u003c\/p\u003e\n\u003cp\u003eSolar Fast Tilter ( SFT for short) is designed for solar narrowband imaging, It can be tilt for around ±9 degrees.\u003c\/p\u003e\n\u003cp\u003eSolar Fast Tilter is a proprietary product of Player One, use 2 screws control the tilt angel, adjustment only need a few seconds.\u003c\/p\u003e\n\u003cp\u003eWe suggest to keep SFT and camera at same angel, it will helps to get best effect.\u003c\/p\u003e\n\u003cp\u003e\u003cimg class=\"aligncenter size-full wp-image-7762\" src=\"http:\/\/player-one-astronomy.com\/wp-content\/uploads\/2023\/09\/Solar-Fast-Tilter-6.png?width=700\" alt=\"\" width=\"1109\" height=\"605\" srcset=\"https:\/\/player-one-astronomy.com\/wp-content\/uploads\/2023\/09\/Solar-Fast-Tilter-6.png 1657w, https:\/\/player-one-astronomy.com\/wp-content\/uploads\/2023\/09\/Solar-Fast-Tilter-6-300x164.png 300w, https:\/\/player-one-astronomy.com\/wp-content\/uploads\/2023\/09\/Solar-Fast-Tilter-6-1024x559.png 1024w, https:\/\/player-one-astronomy.com\/wp-content\/uploads\/2023\/09\/Solar-Fast-Tilter-6-768x419.png 768w, https:\/\/player-one-astronomy.com\/wp-content\/uploads\/2023\/09\/Solar-Fast-Tilter-6-1536x838.png 1536w, https:\/\/player-one-astronomy.com\/wp-content\/uploads\/2023\/09\/Solar-Fast-Tilter-6-600x327.png 600w\" sizes=\"(max-width: 1657px) 100vw, 1657px\"\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cimg class=\"aligncenter size-full wp-image-7759\" src=\"http:\/\/player-one-astronomy.com\/wp-content\/uploads\/2023\/09\/Solar-Fast-Tilter-4.jpg?width=700\" alt=\"\" width=\"1207\" height=\"614\" srcset=\"https:\/\/player-one-astronomy.com\/wp-content\/uploads\/2023\/09\/Solar-Fast-Tilter-4.jpg 1906w, https:\/\/player-one-astronomy.com\/wp-content\/uploads\/2023\/09\/Solar-Fast-Tilter-4-300x153.jpg 300w, https:\/\/player-one-astronomy.com\/wp-content\/uploads\/2023\/09\/Solar-Fast-Tilter-4-1024x521.jpg 1024w, https:\/\/player-one-astronomy.com\/wp-content\/uploads\/2023\/09\/Solar-Fast-Tilter-4-768x391.jpg 768w, https:\/\/player-one-astronomy.com\/wp-content\/uploads\/2023\/09\/Solar-Fast-Tilter-4-1536x782.jpg 1536w, https:\/\/player-one-astronomy.com\/wp-content\/uploads\/2023\/09\/Solar-Fast-Tilter-4-600x305.jpg 600w\" sizes=\"(max-width: 1906px) 100vw, 1906px\"\u003e\u003c\/h3\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial：\u003c\/strong\u003eAluminum 6061-T6\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdapter:\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003e1.25″ holder and 1.25″ T-mount\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody threads:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eM42*0.75 on both side\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody thinkness:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e15MM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTotal Extention Length:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e40mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eIn the Box\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePlayer One Solar Fast Tilter\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eManuals \u0026amp; Warranty\u003c\/h3\u003e\n\u003cp\u003ePlayer One 2-Year Warranty\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Player One","offers":[{"title":"Default Title","offer_id":53073510105369,"sku":"rnn1787937841152","price":49.74,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/7054\/6457\/files\/player-one-solar-fast-tilter-sft_1.png?v=1787937846"},{"product_id":"askar-103apo-08x-full-frame-reducer-103apo-08-ffr","title":"Askar 103APO 0.8x Full-Frame Reducer (103APO-08-FFR)","description":"\u003ch2\u003eAskar 103APO 0.8x Full-Frame Reducer\u003c\/h2\u003e\n\u003cp\u003eThe 0.8x reducer can bring Askar 103APO's focal ratio down to F5.4. This is a standard reducer with field flattening capabilities as well. A shorter focal ratio allows the OTA to have a wider field of view and faster exposure times, making it suitable for capturing large areas of nebulae, star clusters, and faint, fast-moving celestial objects.\u003c\/p\u003e\n\u003cp\u003eThe 0.8x reducer adopts a triplet design and supports a 44mm full-frame image circle. The overall weight is 0.48kg. The back focus from the M48 thread is a standard 55mm. The front thread is M84*1. At the camera end, it is equipped with M54*0.75 and M48*0.75 two sizes of adapters, which are convenient for connection. At the same time, it has a built-in M48*0.75 2-inch filter thread, which can be directly installed and used. The overall CNC machined, both end threaded metal caps prevent ash when not in use.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable style=\"border-collapse: collapse; font-family: Calibri; font-size: 11pt; color: #000; background-color: transparent;\" 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cellspacing=\"0\" cellpadding=\"0\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 14.25pt;\"\u003e\n\u003ctd style=\"width: 385.5pt; white-space: normal; text-align: center; vertical-align: middle; border-bottom: 1px solid #dddddd; background-color: #f5f5f5;\" rowspan=\"1\" colspan=\"3\"\u003e\u003cspan style=\"color: #666666; font-family: Arial; font-size: 21pt; font-weight: bold; vertical-align: baseline;\"\u003e0.8x Reducer Parameters\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 90pt;\"\u003e\n\u003ctd style=\"width: 54.75pt; white-space: normal; text-align: center; vertical-align: middle; border-right: 1px solid #dddddd; border-bottom: 1px solid #dddddd;\"\u003e\u003cspan style=\"color: #666666; font-family: Arial; font-size: 12pt; font-weight: bold; vertical-align: baseline;\"\u003e（After attaching）103APO Focal length\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 330.75pt; white-space: normal; text-align: center; vertical-align: middle; border-bottom: 1px solid #dddddd; border-left: 1px solid #dddddd;\" rowspan=\"1\" colspan=\"2\"\u003e\u003cspan style=\"color: #666666; font-family: Arial; font-size: 12pt; font-weight: bold; vertical-align: baseline;\"\u003e560.32mm\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 90pt;\"\u003e\n\u003ctd style=\"width: 54.75pt; white-space: normal; text-align: center; vertical-align: middle; border-right: 1px solid #dddddd; border-bottom: 1px solid #dddddd; border-top: 1px solid #dddddd;\"\u003e\u003cspan style=\"color: #666666; font-family: Arial; font-size: 12pt; font-weight: bold; vertical-align: baseline;\"\u003e（After attaching）103APO Focal ratio\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 330.75pt; white-space: normal; text-align: center; vertical-align: middle; border-bottom: 1px solid #dddddd; border-left: 1px solid #dddddd; border-top: 1px solid #dddddd;\" rowspan=\"1\" colspan=\"2\"\u003e\u003cspan style=\"color: #666666; font-family: Arial; font-size: 12pt; font-weight: bold; vertical-align: baseline;\"\u003ef\/5.44\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 45pt;\"\u003e\n\u003ctd style=\"width: 54.75pt; white-space: normal; text-align: center; vertical-align: middle; border-right: 1px solid #dddddd; border-bottom: 1px solid #dddddd; border-top: 1px solid #dddddd;\"\u003e\u003cspan style=\"color: #666666; font-family: Arial; font-size: 12pt; font-weight: bold; vertical-align: baseline;\"\u003eLens Number\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 330.75pt; white-space: normal; text-align: center; vertical-align: middle; border-bottom: 1px solid #dddddd; border-left: 1px solid #dddddd; border-top: 1px solid #dddddd;\" rowspan=\"1\" colspan=\"2\"\u003e\u003cspan style=\"color: #666666; font-family: Arial; font-size: 12pt; font-weight: bold; vertical-align: baseline;\"\u003eTriplet design\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 30pt;\"\u003e\n\u003ctd style=\"width: 54.75pt; white-space: normal; text-align: center; vertical-align: middle; border-right: 1px solid #dddddd; border-bottom: 1px solid #dddddd; border-top: 1px solid #dddddd;\"\u003e\u003cspan style=\"color: #666666; font-family: Arial; font-size: 12pt; font-weight: bold; vertical-align: baseline;\"\u003eBack Focus\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 330.75pt; white-space: normal; text-align: center; vertical-align: middle; border-bottom: 1px solid #dddddd; border-left: 1px solid #dddddd; border-top: 1px solid #dddddd;\" rowspan=\"1\" colspan=\"2\"\u003e\u003cspan style=\"color: #666666; font-family: Arial; font-size: 12pt; font-weight: bold; vertical-align: baseline;\"\u003e55mm（from the base of M48 male thread）\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 15pt;\"\u003e\n\u003ctd style=\"width: 54.75pt; white-space: normal; text-align: center; vertical-align: middle; border-right: 1px solid #dddddd; border-bottom: 1px solid #dddddd; border-top: 1px solid #dddddd;\"\u003e\u003cspan style=\"color: #666666; font-family: Arial; font-size: 12pt; font-weight: bold; vertical-align: baseline;\"\u003eWeight\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 330.75pt; white-space: normal; text-align: center; vertical-align: middle; border-bottom: 1px solid #dddddd; border-left: 1px solid #dddddd; border-top: 1px solid #dddddd;\" rowspan=\"1\" colspan=\"2\"\u003e\u003cspan style=\"color: #666666; font-family: Arial; font-size: 12pt; font-weight: bold; vertical-align: baseline;\"\u003e0.48kg\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 15pt;\"\u003e\n\u003ctd style=\"width: 54.75pt; white-space: normal; text-align: center; vertical-align: middle; border-bottom: 1px solid #dddddd; border-top: 1px solid #dddddd;\" rowspan=\"2\" colspan=\"1\"\u003e\u003cspan style=\"color: #666666; font-family: Arial; font-size: 12pt; font-weight: bold; vertical-align: baseline;\"\u003eRear-end thread type\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 282.75pt; white-space: nowrap; text-align: center; vertical-align: middle; border-left: 1px solid #dddddd; border-top: 1px solid #dddddd;\"\u003e\u003cspan style=\"color: #666666; font-family: Arial; font-size: 12pt; font-weight: bold; vertical-align: baseline;\"\u003eM54×0.75\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 96pt; white-space: nowrap; vertical-align: middle; border-top: 1px solid #dddddd;\" rowspan=\"2\" colspan=\"2\"\u003e\u003cspan style=\"vertical-align: baseline;\"\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 15pt;\"\u003e\n\u003ctd style=\"width: 282.75pt; white-space: nowrap; vertical-align: bottom;\"\u003e\u003cspan style=\"color: #666666; font-family: Arial; font-size: 12pt; font-weight: bold; vertical-align: baseline;\"\u003eM54×0.75-M48×0.75 (M48×0.75 filter thread inside)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eIn the Box\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAskar 103APO 0.8x Full-Frame Reducer\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWarranty \u0026amp; Manuals\u003c\/h3\u003e\n\u003cp\u003eAskar Warranty\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Askar","offers":[{"title":"Default Title","offer_id":53073510138137,"sku":"ghf1787937841469","price":168.07,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/7054\/6457\/files\/askar-103apo-08x-full-frame-reducer-103apo-08-ffr_1.webp?v=1787937846"},{"product_id":"svbony-05x-focal-reducer-125-f9115a","title":"SVBONY 0.5X Focal Reducer 1.25\" (F9115A)","description":"\u003ch1\u003eSVBONY 0.5X Focal Reducer 1.25\"\u003c\/h1\u003e\n\u003cp\u003eFits all standard 1.25\" scope eyepieces\u003c\/p\u003e\n\u003cp\u003eIts role is to shorten the focal length, increasing the field of view, usually for a longer focal length telescope\u003c\/p\u003e\n\u003cp\u003eThe reducer has standard 1.25inch telescope threads M28.5x0.6 and fits onto the nose of any 1.25 inch eyepiece, diagonal, extender tube, or camera adaptor fitting that format\u003c\/p\u003e\n\u003cp\u003eReduces your telescope's focal ratio by 0.5\u003c\/p\u003e\n\u003cp\u003eIncreases imaging area\u003c\/p\u003e\n\u003cp\u003eOptical lens helps transmit more light\u003c\/p\u003e\n\u003cp\u003eCan both have a filter attached and be threaded onto an eyepiece or camera\u003c\/p\u003e\n\u003cp\u003eNice anodized aluminum housing\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/6387090503269063058637273.jpg?v=1761163404\u0026amp;width=700\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cp\u003eBrand: SVBONY\u003c\/p\u003e\n\u003cp\u003eFocal Reducer: 0.5X\u003c\/p\u003e\n\u003cp\u003eLens Material: pure optical glass lens\u003c\/p\u003e\n\u003cp\u003eLens material: Broadband coating\u003c\/p\u003e\n\u003cp\u003eSleeve material: Metal\u003c\/p\u003e\n\u003cp\u003eBarrel Size: 1.25 inch \/ 31.7mm\u003c\/p\u003e\n\u003cp\u003eThread interface: M28.5x0.6 pitch (Fine Thread)\u003c\/p\u003e\n\u003cp\u003eTotal item length (including external thread): 0.55inch \/ 14mm\u003c\/p\u003e\n\u003cp\u003eTotal item length (excluding external thread): 0.43inch \/ 11mm\u003c\/p\u003e\n\u003cp\u003eClear aperture: 0.87inch \/ 22mm\u003c\/p\u003e\n\u003cp\u003eWeight: 0.42oz \/ 12g\u003c\/p\u003e\n\u003cp\u003eColor: Black\u003c\/p\u003e\n\u003ch3\u003eIn the Box:\u003c\/h3\u003e\n\u003cp\u003e\u003cspan size=\"4\"\u003eSVBONY 0.5X Focal Reducer 1.25\"\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan size=\"4\"\u003eManuals and Warranty:\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan size=\"4\"\u003eSvbony 1-Year Warranty \u003c\/span\u003e\u003c\/p\u003e","brand":"Svbony","offers":[{"title":"Default Title","offer_id":53073510170905,"sku":"uxk1787937841525","price":12.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/7054\/6457\/files\/svbony-05x-focal-reducer-125-f9115a_1.jpg?v=1787937846"},{"product_id":"sharpstar-50edph-084x-reducer-50edph-fr","title":"Sharpstar 50EDPH 0.84x Reducer (50EDPH-FR)","description":"\u003ch1\u003eSharpstar 50EDPH 0.84x Reducer \u003c\/h1\u003e\n\u003cp\u003eThe Sharpstar 50EDPH comes with an optional specific 0.84x reducer， which is optimized for the Sharpstar 50EDPH and can provide more possibilities for telescope use.\u003c\/p\u003e\n\u003cp\u003eThe 0.84x reducer can bring Sharpstar 50EDPH's focal ratio down to F4.6. This is a standard reducer with field flattening capabilities as well. A shorter focal ratio allows the OTA to have a wider field of view and faster exposure times, making it suitable for capturing large areas of nebulae, star clusters, and faint, fast-moving celestial objects.\u003c\/p\u003e\n\u003cp\u003eThe 0.84x reducer adopts a quadruplet design and supports an APS-C frame. The overall weight is 0.24kg. The back focus from the M48 thread is a standard 55mm. The front thread is M42*1 and the camera end thread is M48*0.75. At the same time, it has a built-in 2-inch filter thread, which can be directly installed and used. The overall CNC machined, both end threaded metal caps prevent ash when not in use.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable width=\"426\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"213\"\u003e\u003c\/td\u003e\n\u003ctd width=\"213\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" width=\"426\"\u003e0.84x Reducer Parameters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e(After attaching）50EDPH Focal length\u003c\/td\u003e\n\u003ctd\u003e230mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e(After attaching）50EDPH Focal ratio\u003c\/td\u003e\n\u003ctd\u003ef\/4.6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLens Number\u003c\/td\u003e\n\u003ctd\u003eQuadruplet design\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBack Focus\u003c\/td\u003e\n\u003ctd\u003e55mm（from the base of M48 male thread）\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.24kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRear-end thread type\u003c\/td\u003e\n\u003ctd\u003eM48×0.75 (M48×0.75 filter thread inside)\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\u003e50EDPH 0.84x Reducer\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWarranty \u0026amp; Manuals\u003c\/h3\u003e\n\u003cp\u003eSharpstar Warranty\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"SharpStar","offers":[{"title":"Default Title","offer_id":53073510269209,"sku":"ndp1787937842296","price":25.65,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/7054\/6457\/files\/sharpstar-50edph-084x-reducer-50edph-fr_1.png?v=1787937847"},{"product_id":"svbony-sv209-focal-reducerfield-flattener-08x-for-sv550-122f7-w9161b","title":"SVBONY SV209 Focal Reducer\/Field Flattener 0.8x for SV550 122F7 (W9161B)","description":"\u003ch2\u003eSVBONY SV209 Focal Reducer\/Field Flattener 0.8x for SV550 122F7\u003c\/h2\u003e\n\u003cp\u003eThis 0.8X focal reducer\/field flattener is designed specifically for prime focus astrophotography with the SVBONY SV550 122mm f\/7 apo refractor. The fully-multicoated reducer\/flattener converts the 854mm focal length f\/7 refractor into a 683.2mm f\/5.6 system for faster and wider field astronomical and terrestrial photography. In addition to reducing the focal length of the telescope and thereby increasing the photographic speed, the flattens the normal field curvature inherent in refractors.\u003c\/p\u003e\n\u003cp\u003eThis provides images that are sharply focused out to the corners of DSLR and CCD imaging chips. The reducer\/flattener threads into the focuser for a secure connection. The threading is metric 63x1. Back focus is 55mm from the shoulder of the reducer to the image plane, the standard spacing for DSLR camera bodies.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/1_0a8226f2-f86c-4484-823f-f7d21881a0fd.jpg?v=1761160479\u0026amp;width=700\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eHow To Use\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e1. SV550 122mm APO Telescope\u003c\/p\u003e\n\u003cp\u003e2. Remove the adapter\u003c\/p\u003e\n\u003cp\u003e3. Connect SV209\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/2_ae367826-24aa-4bcd-b759-97b51afb8a1b.jpg?v=1761160519\u0026amp;width=700\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eCorrection of Field Curvature Defects\u003c\/strong\u003e\u003c\/h4\u003e\n\u003ch4\u003e\u003cstrong\u003e-- Improving Image Quality At The Edge Of The Field Of View\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eIn addition to reducing the focal length of the telescope and thereby increasing the photographic speed, the flattens the normal field curvature inherent in refractors. This provides images that are sharply focused out to the corners of DSLR and CCD imaging chips.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/3_fd48df6a-af2a-4519-9219-0a1f6621dff9.jpg?v=1761160536\u0026amp;width=700\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eFully-Multi-Coated Lens Structure\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eThe fully-multicoated reducer\/flattener converts the 854mm focal length f\/7 refractor into a 683.2mm f\/5.6 system for faster and wider field astronomical and terrestrial photography.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThis 0.8X focal reducer\/field flattener is designed specifically for prime focus astrophotography with the SVBONY SV550 122mm f\/7 apo refractor. \u003c\/li\u003e\n\u003cli\u003eThe fully-multicoated reducer\/flattener converts the 854mm focal length f\/7 refractor into a 683.2mm f\/5.6 system for faster and wider field astronomical and terrestrial photography\u003c\/li\u003e\n\u003cli\u003eIn addition to reducing the focal length of the telescope and thereby increasing the photographic speed, the flattens the normal field curvature inherent in refractors. This provides images that are sharply focused out to the corners of DSLR and CCD imaging chips\u003c\/li\u003e\n\u003cli\u003eThe reducer\/flattener threads into the focuser for a secure connection. The threading is metric 63x1\u003c\/li\u003e\n\u003cli\u003eBack focus is 55mm from the shoulder of the reducer to the image plane, the standard spacing for DSLR camera bodies\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/4_99948b29-bcc1-4cc6-93a5-261ff607bf44.jpg?v=1761160556\u0026amp;width=700\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/5_e00fc3a0-b321-418f-82a5-9499cedffeec.jpg?v=1761160556\u0026amp;width=700\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/6_60f9db49-6aed-4253-98fa-22028636d054.jpg?v=1761160556\u0026amp;width=700\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/7_9a581988-e93b-4323-8d5a-0981d23ebc6c.jpg?v=1761160555\u0026amp;width=700\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSV209 0.8x Reducer\/Field Flattener\u003c\/li\u003e\n\u003cli\u003e2PCS Dust Cover\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eManuals \u0026amp; Warranty\u003c\/h3\u003e\n\u003cp\u003eSvbony 1-Year Warranty \u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Svbony","offers":[{"title":"Default Title","offer_id":53073510301977,"sku":"zsj1787937841375","price":122.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/7054\/6457\/files\/svbony-sv209-focal-reducerfield-flattener-08x-for-sv550-122f7-w9161b_1.jpg?v=1787937848"},{"product_id":"askar-08x-reducer-for-120apo-triplet-refractor-120apo-fr","title":"Askar 0.8x Reducer for 120APO Triplet Refractor (120APO-FR)","description":"\u003ch2\u003eAskar 0.8x Reducer for 120APO Triplet Refractor\u003c\/h2\u003e\n\u003cp\u003eThis 0.8x reducer from Askar will reduce the focal ratio of the Askar 120APO from f\/7 down to f\/5.6. A shorter focal ratio allows the optical tube to have a wider field of view with faster exposure times. This makes the system capable of capturing larger areas of nebulae and star clusters, as well as faint, fast-moving celestial objects. This standard reducer also serves as a field flattener.\u003c\/p\u003e\n\u003cp\u003eAdopting a triplet optical design, this 0.8x reducer supports a 44 mm, full-frame image circle. The overall weight is just under two pounds. The back focus from the M48 thread is a standard 55 mm. The front thread is M84x1. At the camera end, this reducer has M54x0.75 and M48x0.75 adapters. At the same time, it has an internal M48x0.75 2-inch filter thread to accept 2-inch filters for astrophotography. The CNC machined metal dust caps at each end of the reducer prevent dust and protect the optics when not in use.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation: Step One\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eInstallation of the 0.8x reducer on the Askar 120APO is a simple, two-step process. Begin by unscrewing the 2\" and 1.25\" adapters on the 120APO.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eInstallation: Step Two\u003c\/strong\u003e\u003cbr\u003eNext, unscrew and remove the dust cap from the 0.8x reducer. Then insert and screw the reducer into the back of the 120APO.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eTechnical Specifications\u003c\/span\u003e\u003c\/h3\u003e\n\u003ctable width=\"546\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"273\"\u003e（After attaching）120APO Focal length\u003c\/td\u003e\n\u003ctd width=\"273\"\u003e672mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e（After attaching）120APO Focal ratio\u003c\/td\u003e\n\u003ctd\u003ef\/5.6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLens Number\u003c\/td\u003e\n\u003ctd\u003eTriplet design\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBack Focus\u003c\/td\u003e\n\u003ctd\u003e55mm（from the base of M48 male thread）\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.75kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd rowspan=\"3\"\u003eRear-end thread type\u003c\/td\u003e\n\u003ctd\u003eM68*1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eM54×0.75\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eM54×0.75-M48×0.75 (M48×0.75 filter thread inside)\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\u003eIn the Box\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eAskar 0.8x Reducer for 120APO Triplet Refractor (120APO-FR)\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eWarranty \u0026amp; Manuals\u003c\/h3\u003e\n\u003cp\u003eAskar Warranty\u003c\/p\u003e","brand":"Askar","offers":[{"title":"Default Title","offer_id":53073510367513,"sku":"olx1787937844844","price":163.64,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/7054\/6457\/files\/askar-08x-reducer-for-120apo-triplet-refractor-120apo-fr_1.jpg?v=1787937850"},{"product_id":"baader-glasspath-corrector-1125-for-baader-binoviewer-2456314","title":"Baader Glasspath corrector 1:1,25 for Baader-Binoviewer (2456314)","description":"\u003ch2\u003eBaader Glasspath  1:1,25 corrector for Baader-Binoviewer\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eGlasspathcorrector Factor 1,25. Optical path length: ≥ -30 mmInsert diameter: ∅ 38 mm\u003c\/li\u003e\n\u003cli\u003eSuitable to insert into the\u003cspan\u003e \u003c\/span\u003eBaader MaxBright\u003csup\u003e®\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003eII Binoviewer\u003cspan\u003e \u003c\/span\u003eor\u003cspan\u003e \u003c\/span\u003eMark V Großfeld (Giant)-Binocular\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"inlinesku\"\u003e(#2456410)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003eA Baader Glaspathcorrector is not a Barlow lens! The reason for this name (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) 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 high amount of glasses used in binocular prisms\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eOriginal Baader descripiton below. This listing is only for the 1.25x glasspath corrector for use with Maxbright II \/ Mark V Binoviewers\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003ewith Zeiss Ring Dovetail only\u003c\/strong\u003e. \u003c\/p\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\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 SCTs.\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 Großfeld (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.\u003c\/p\u003e\n\u003ctable class=\"data\" border=\"5\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\"\u003e\n\u003cp\u003eOptical Length\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd align=\"left\"\u003e\n\u003cp\u003ewithout Corrector\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd align=\"left\"\u003e\n\u003cp\u003ewith GC 1:1.25\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd align=\"left\"\u003e\n\u003cp\u003ewith GC 1:1.70\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd align=\"left\"\u003e\n\u003cp\u003ewith GC 1:2.60\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eFrom the contact surface of the focuser – with 90° T-2 prism\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e 162 mm (can't reach focus)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e144 mm\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e122 mm\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e79 mm\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003estraight, with 2\" nosepiece (without prism, important for Newtonians)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e112 mm\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e94 mm\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e71 mm\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e28 mm\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003estraight, with T-2 quick-changer\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e123 mm\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e105 mm\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e82 mm\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e39 mm\u003c\/p\u003e\n\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 Großfeld (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\u003ch3\u003eTechnical Specifications \u003c\/h3\u003e\n\u003ctable width=\"546\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"273\"\u003e \u003c\/td\u003e\n\u003ctd width=\"273\"\u003e \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMANUFACTURER\u003c\/td\u003e\n\u003ctd\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU (#)\u003c\/td\u003e\n\u003ctd\u003e2456314Z\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNET WEIGHT (KG)\u003c\/td\u003e\n\u003ctd\u003e0.02\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOUTER CONNECTION (EYEPIECE\/-CAMERA-SIDED)\u003c\/td\u003e\n\u003ctd\u003eM34, M42 x 0.75 (T-2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-tooltip=\"Die Vergrößerung wird oft als die\"\u003eMAGNIFICATION (X)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e1 : 1,25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOPTICAL LENGTH (MM)\u003c\/td\u003e\n\u003ctd\u003e≥ -30\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOPTICAL DESIGN\u003c\/td\u003e\n\u003ctd\u003eGlaspath Corrector\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCOMPATIBLE TELESCOPES\u003c\/td\u003e\n\u003ctd\u003eRefractors, Schmidt-Cassegrain, Newton\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003e\u003c\/h3\u003e\n\u003ch3\u003eIn the Box\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBaader Glasspath 1:1,25 corrector for Baader-Binoviewer with Zeiss ring dovetail (2456314Z)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eWarranty \u0026amp; Manuals\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/h3\u003e\n\u003cp data-mce-fragment=\"1\"\u003e2-Year Warranty\u003c\/p\u003e\n\u003cp\u003eUser Manual\u003c\/p\u003e\n\u003cp\u003eTechnical Drawings\u003c\/p\u003e","brand":"Baader Planetarium","offers":[{"title":"Default Title","offer_id":53073510465817,"sku":"dyu1787937853858","price":100.34,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/7054\/6457\/files\/baader-glasspath-corrector-1125-for-baader-binoviewer-2456314_1.png?v=1787937858"},{"product_id":"baader-glasspath-corrector-1170-for-baader-binoviewer-2456316","title":"Baader Glasspath corrector 1:1,70 for Baader-Binoviewer (2456316)","description":"\u003ch2\u003eBaader Glasspath corrector 1:1,70 for Baader-Binoviewer\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eGlasspathcorrector Factor 1,7. Optical path length: -65 mm\u003c\/li\u003e\n\u003cli\u003eInsert diameter: ∅ 38 mm\u003c\/li\u003e\n\u003cli\u003eSuitable to insert into the Baader MaxBright\u003csup\u003e®\u003c\/sup\u003e II Binoviewer or Mark V Großfeld (Giant)-Binocular (#2456410 , € 1425,-)\u003c\/li\u003e\n\u003cli\u003eA Baader Glaspathcorrector is not a Barlow lens! The reason for this name (in Germany the name \u003cem\u003eGlaswegkorrektor\u003c\/em\u003e\u003csup\u003e®\u003c\/sup\u003e 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 high amount of glasses used in binocular prisms\u003c\/li\u003e\n\u003c\/ul\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\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 Großfeld (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.\u003c\/p\u003e\n\u003cp\u003eOptical Length without Corrector with GC 1:1,25 with GC 1:1,70 with GC 1:2,60 From the contact surface of the focuser – with 90° T-2 prism  162 mm (can't reach focus) 144 mm 122 mm 79 mm straight, with 2\" nosepiece (without prism, important for Newtonians) 112 mm 94 mm 71 mm 28 mm straight, with T-2 quick-changer 123 mm 105 mm 82 mm 39 mm  \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 Großfeld (Giant) Bino and the MaxBright\u003csup\u003e®\u003c\/sup\u003e II as well as a T-2 clamping flange for MaxBright\u003csup\u003e®\u003c\/sup\u003e und MaxBright\u003csup\u003e®\u003c\/sup\u003e 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\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\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 alwys 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\u003cp\u003e\u003cstrong\u003eZeiss Dovetail (Großfeld- (Giant) Binoviewer and MaxBright II, only for GC 1:1,25 and GC 1:1,7\u003c\/strong\u003e\u003c\/p\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\u003csup\u003e®\u003c\/sup\u003e\/Maxbright\u003csup\u003e®\u003c\/sup\u003eII 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 1¼\" 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 1¼\"\/T-2 eyepiece clamp, you can use your 1¼\" prism diagonal and most 1¼\" eyepieces together with your camera lens!\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications \u003c\/h3\u003e\n\u003cp\u003e    MANUFACTURER Baader Planetarium SKU (#) 2456316Z NET WEIGHT (KG) 0.02 OUTER CONNECTION (EYEPIECE\/-CAMERA-SIDED) M34, M42 x 0.75 (T-2) MAGNIFICATION (X) 1 : 1,70 OPTICAL LENGTH (MM) 65 OPTICAL DESIGN Glaspath Corrector COMPATIBLE TELESCOPES Refractors, Schmidt-Cassegrain, Newton  \u003c\/p\u003e\n\u003ch3\u003eIn the Box\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBaader Glasspath corrector 1:1,70 for Baader-Binoviewer (2456316)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eWarranty \u0026amp; Manuals\u003c\/h3\u003e\n\u003cp\u003eUser Manual\u003c\/p\u003e\n\u003cp\u003eTechnical Drawings\u003c\/p\u003e\n\u003cp\u003e2-Year Warranty\u003c\/p\u003e","brand":"Baader Planetarium","offers":[{"title":"Default Title","offer_id":53073510498585,"sku":"htw1787937854737","price":82.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/7054\/6457\/files\/baader-glasspath-corrector-1170-for-baader-binoviewer-2456316_1.png?v=1787937859"},{"product_id":"baader-glasspath-corrector-1260-for-baader-binoviewer-2456317","title":"Baader Glasspath corrector 1:2,60 for Baader-Binoviewer (2456317)","description":"\u003ch2\u003eBaader Glasspath corrector 1:2,60 for Baader-Binoviewer\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eGlasspathcorrector Factor 2,6. Optical path length: -120 mm\u003c\/li\u003e\n\u003cli\u003eInsert diameter: ∅ 38 mm\u003c\/li\u003e\n\u003cli\u003eSuitable to insert into the Baader MaxBright (Classic and MaxBright\u003csup\u003e®\u003c\/sup\u003e II) or Mark V Großfeld (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 \u003cem\u003eGlaswegkorrektor\u003c\/em\u003e\u003csup\u003e®\u003c\/sup\u003e 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 high amount of glasses used in binocular prisms\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eGlasspathcorrectors for lens telescopes, Newtonians and Schmidt-Cassegrains\u003c\/h4\u003e\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\u003c\/p\u003e\u003ch4\u003eBaader Glaswegkorrektor (GK) Faktor 1,25 GC Factor 1,25 \/ Factor 1,70 \/ Factor 2,60\u003c\/h4\u003e\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\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 Großfeld (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.\u003c\/p\u003e\u003cp\u003e   Optical Length without Corrector with GC 1:1,25 with GC 1:1,70 with GC 1:2,60   From the contact surface of the focuser – with 90° T-2 prism  162 mm (can't reach focus) 144 mm 122 mm 79 mm   straight, with 2\" nosepiece (without prism, important for Newtonians) 112 mm 94 mm 71 mm 28 mm   straight, with T-2 quick-changer 123 mm 105 mm 82 mm 39 mm    \u003c\/p\u003e\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 Großfeld (Giant) Bino and the MaxBright\u003csup\u003e®\u003c\/sup\u003e II as well as a T-2 clamping flange for MaxBright\u003csup\u003e®\u003c\/sup\u003e und MaxBright\u003csup\u003e®\u003c\/sup\u003e 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\u003ch4\u003eGlasspathcorrector® 1:2,6\u003c\/h4\u003e\u003cp\u003eThe cell of this glasspathcorrector must not be opened, because these lenses are seperately centered during manufacturing. Their distances are optimised for use as glasspathcorrector (not as Barlow lens). That's why only \"lens position B\" is available (cf. the information sheet to the Astro T-2 System®). The 1:2.6 glasspath corrector can be screwed into every T-2 star diagonal, so that you can use it both with Zeiss ringdovetail ot a T-2-thread. So, you can use it with all of our binoviewers.\u003c\/p\u003e\u003cp\u003eYou can also insert the 2.6x glasspathcorrector – as mentioned above – between every T-2 screw coupling with its flat rim. The flat rim must always face towards the eyepiece and the lens cell towards the telescope.\u003c\/p\u003e\u003ch4\u003eT-2 Coupling Nut (Maxbright\u003csup\u003e®\u003c\/sup\u003e\/Maxbright\u003csup\u003e®\u003c\/sup\u003eII Binoviewer)\u003c\/h4\u003e\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 1¼\" 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\u003ch4\u003eTelescopes with T-2 thread\u003c\/h4\u003e\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\u003ch4\u003eCamera lenses\u003c\/h4\u003e\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 1¼\"\/T-2 eyepiece clamp, you can use your 1¼\" prism diagonal and most 1¼\" eyepieces together with your camera lens!\u003c\/p\u003e\u003ch3\u003eTechnical Specifications \u003c\/h3\u003e\u003cp\u003e         MANUFACTURER Baader Planetarium   SKU (#) 2456317   NET WEIGHT (KG) 0.02   OUTER CONNECTION (EYEPIECE\/-CAMERA-SIDED) M34, M42 x 0.75 (T-2)   MAGNIFICATION (X) 1 : 2,60   OPTICAL LENGTH (MM) -120   OPTICAL DESIGN Glaspath Corrector   COMPATIBLE TELESCOPES Refractors, Schmidt-Cassegrain, Newton    \u003c\/p\u003e\u003ch3\u003eIn the Box\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e Baader Glasspath corrector 1:2,60 for Baader-Binoviewer (2456317)\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eWarranty \u0026amp; Manuals\u003c\/h3\u003e\u003cp\u003eUser Manual\u003c\/p\u003e\u003cp\u003eTechnical Drawings\u003c\/p\u003e\u003cp\u003e2-Year Warranty\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e","brand":"Baader Planetarium","offers":[{"title":"Default Title","offer_id":53073510760729,"sku":"eau1787937850382","price":97.64,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/7054\/6457\/files\/baader-glasspath-corrector-1260-for-baader-binoviewer-2456317_1.png?v=1787937878"}],"url":"https:\/\/www.oliveandbrook.shop\/collections\/image-correctors-for-telescopes-and-astrophotograp.oembed","provider":"My Store","version":"1.0","type":"link"}