{"title":"Celestron RASA","description":"\u003cp\u003eThe Celestron RASA line, listed by aperture. Part of \u003ca href=\"\/collections\/celestron-telescopes\"\u003eCelestron Telescopes\u003c\/a\u003e.\u003c\/p\u003e","products":[{"product_id":"8-rowe-ackermann-schmidt-astrograph-rasa8","title":"ROWE-ACKERMANN SCHMIDT ASTROGRAPH (RASA8)","description":"\u003cp style=\"box-sizing: inherit; margin: 0px 0px 15px; padding: 0px; font-family: \" open sans arial helvetica sans-serif font-size:=\"\"\u003eCapture spectacular wide-field deep sky images in seconds with Celestron’s new portable astrograph, the 8” Rowe-Ackermann Schmidt Astrograph (RASA). This incredibly fast f\/2.0 system is the perfect companion to today’s color astronomical CMOS cameras, smaller CCD cameras, and mirrorless cameras. Thanks to its fast focal ratio and patented optical design, you can produce sharp, detailed images and, in many cases, skip the autoguider completely. Weighing in at just 17 pounds, it’s easy to transport your 8” RASA to the most remote dark sky locations.\u003c\/p\u003e\u003cp style=\"box-sizing: inherit; margin: 0px 0px 15px; padding: 0px; font-family: \" open sans arial helvetica sans-serif font-size:=\"\"\u003e\u003cspan style=\"box-sizing: inherit; font-weight: bolder;\"\u003e \u003c\/span\u003e\u003c\/p\u003e\u003cp style=\"box-sizing: inherit; margin: 0px 0px 15px; padding: 0px; font-family: \" open sans arial helvetica sans-serif font-size:=\"\"\u003e\u003cspan style=\"box-sizing: inherit; font-weight: bolder;\"\u003eRASA Performance Made for Everyone\u003c\/span\u003e\u003c\/p\u003e\u003cp style=\"box-sizing: inherit; margin: 0px 0px 15px; padding: 0px; font-family: \" open sans arial helvetica sans-serif font-size:=\"\"\u003eThe 8” RASA is an imaging telescope that delivers a flat field without optical aberrations for razor sharp stars across a wide field of view. It can capture stunning deep-sky astronomical images without the challenges typically presented by longer focal length instruments at a fraction of the cost of those systems.\u003c\/p\u003e\u003cp style=\"box-sizing: inherit; margin: 0px 0px 15px; padding: 0px; font-family: \" open sans arial helvetica sans-serif font-size:=\"\"\u003eThe latest addition to the RASA family, this 8” version is a much more portable and affordable version of the heralded RASA 11, which was introduced to much acclaim in 2014. With the 8” RASA joining the lineup, a wider range of astroimagers can enjoy the benefits of the RASA design. It has many of the same thoughtfully designed features as its “big brother” RASA 11, including the integrated air-cooling system, internal filter mount, and sturdy CGE dovetail mounting bar.\u003c\/p\u003e\u003cp style=\"box-sizing: inherit; margin: 0px 0px 15px; padding: 0px; font-family: \" open sans arial helvetica sans-serif font-size:=\"\"\u003ePurely designed for imaging, the 8” RASA cannot be used visually. The prime focus focal plane is located at the front of the optical system, so it cannot accommodate a traditional eyepiece.\u003c\/p\u003e\u003cp style=\"box-sizing: inherit; margin: 0px 0px 15px; padding: 0px; font-family: \" open sans arial helvetica sans-serif font-size:=\"\"\u003e \u003c\/p\u003e\u003cp style=\"box-sizing: inherit; margin: 0px 0px 15px; padding: 0px; font-family: \" open sans arial helvetica sans-serif font-size:=\"\"\u003e\u003cspan style=\"box-sizing: inherit; font-weight: bolder;\"\u003eShorter Exposure Times and Virtual “Real-Time” Observing\u003c\/span\u003e\u003c\/p\u003e\u003cp style=\"box-sizing: inherit; margin: 0px 0px 15px; padding: 0px; font-family: \" open sans arial helvetica sans-serif font-size:=\"\"\u003eSince it is an F\/2.0 optical system, imagers can use shorter exposure times to capture detail in faint objects. When combined with sensitive cameras and the proper “live stacking” software, the 8” RASA can provide an almost real-time observing experience. View images on a computer instantly that are brighter and more detailed than can be seen in much bigger telescopes with the naked eye.\u003c\/p\u003e\u003cp style=\"box-sizing: inherit; margin: 0px 0px 15px; padding: 0px; font-family: \" open sans arial helvetica sans-serif font-size:=\"\"\u003eBecause shorter exposure times are possible, your equatorial mount won’t need to accurately track over extended periods. The 8” RASA’s relatively short 400mm focal length also lessens equatorial tracking demands. In many cases, autoguiding will not be required. Weighing only 17 lb, this optical tube pairs perfectly with a wide variety of mounts.\u003c\/p\u003e\u003cp style=\"box-sizing: inherit; margin: 0px 0px 15px; padding: 0px; font-family: \" open sans arial helvetica sans-serif font-size:=\"\"\u003e \u003c\/p\u003e\u003cp style=\"box-sizing: inherit; margin: 0px 0px 15px; padding: 0px; font-family: \" open sans arial helvetica sans-serif font-size:=\"\"\u003e\u003cspan style=\"box-sizing: inherit; font-weight: bolder;\"\u003eUltra-Stable Focus System\u003c\/span\u003e\u003c\/p\u003e\u003cp style=\"box-sizing: inherit; margin: 0px 0px 15px; padding: 0px; font-family: \" open sans arial helvetica sans-serif font-size:=\"\"\u003eWith the launch of the 8” RASA, Celestron is unveiling a new focuser design that mitigates lateral movement of the primary mirror when focusing, slewing, or tracking with the astrograph. Focusing is easier, more accurate, and more stable than ever. The key to the Ultra-Stable Focus System is two sets of precision bearings that are precisely aligned and tested during assembly to ensure optimal results.\u003c\/p\u003e\u003cp style=\"box-sizing: inherit; margin: 0px 0px 15px; padding: 0px; font-family: \" open sans arial helvetica sans-serif font-size:=\"\"\u003e\u003cspan style=\"box-sizing: inherit; font-weight: bolder;\"\u003e \u003c\/span\u003e\u003c\/p\u003e\u003cp style=\"box-sizing: inherit; margin: 0px 0px 15px; padding: 0px; font-family: \" open sans arial helvetica sans-serif font-size:=\"\"\u003e\u003cspan style=\"box-sizing: inherit; font-weight: bolder;\"\u003eBuilt for Today’s Latest Cameras\u003c\/span\u003e\u003c\/p\u003e\u003cp style=\"box-sizing: inherit; margin: 0px 0px 15px; padding: 0px; font-family: \" open sans arial helvetica sans-serif font-size:=\"\"\u003eUnlike the larger RASAs that work with DSLR and large CCD cameras, the 8” model was designed with color astronomical CMOS cameras, smaller CCD cameras, and mirrorless cameras in mind. It is optimized for sensors with up to a 22mm diagonal, but still performs well with larger (up to 32mm diagonal) sensors. As such, it works well with APS-C sized sensors used in many mirrorless cameras.\u003c\/p\u003e\u003cp style=\"box-sizing: inherit; margin: 0px; padding: 0px; font-family: \" open sans arial helvetica sans-serif font-size:=\"\"\u003eCamera adapters to connect C-mount cameras and cameras which mount with M42 threads are included. Celestron offers optional adapters to connect your 8” RASA to Sony or Canon mirrorless cameras.\u003c\/p\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":44013458161775,"sku":"91073","price":3056.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/91073_8in_Rowe-Ackermann_Schmidt_Astrograph_01_570x3802x__61972.jpg?v=1766553593"},{"product_id":"celestron-11-rowe-ackermann-schmidt-astrograph-rasa-v2","title":"Celestron 11\" Rowe-Ackermann Schmidt Astrograph RASA V2","description":"\u003cul style=\"box-sizing: inherit; margin: 0px 0px 15px 7px; padding: 0px; list-style: none; color: rgb(51, 62, 72); font-family: \" open sans arial helvetica sans-serif font-size:=\"\"\u003e\n\u003cli style=\"box-sizing: inherit; position: relative; margin-bottom: 5px; padding-left: 15px;\"\u003eFast, wide-field 11” f\/2.2 optical design with rare-earth glass for images free of false color, coma, and field curvature\u003c\/li\u003e\n\u003cli style=\"box-sizing: inherit; position: relative; margin-bottom: 5px; padding-left: 15px;\"\u003eLarge 43.3mm optimized image circle maintains pinpoint stars to the far corners of even the largest astroimaging sensors, while the usable field extends even further to 52mm for larger format sensors\u003c\/li\u003e\n\u003cli style=\"box-sizing: inherit; position: relative; margin-bottom: 5px; padding-left: 15px;\"\u003e\n\u003cspan style=\"box-sizing: inherit; font-weight: bolder;\"\u003eNew Ultra-Stable Focus System (USFS) \u003c\/span\u003eminimizes focus shift and mirror flop\u003c\/li\u003e\n\u003cli style=\"box-sizing: inherit; position: relative; margin-bottom: 5px; padding-left: 15px;\"\u003eIntegrated air-cooling system features a quiet, high-output 12V MagLev fan and vents with mesh filters to prevent dust ingress\u003c\/li\u003e\n\u003cli style=\"box-sizing: inherit; position: relative; margin-bottom: 5px; padding-left: 15px;\"\u003eCommon camera adapters (T-thread and M48) included for easy attachment to popular CCD and DSLR cameras\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp style=\"box-sizing: inherit; margin: 0px 0px 15px; padding: 0px; color: rgb(51, 62, 72); font-family: \" open sans arial helvetica sans-serif font-size:=\"\"\u003eCapturing impressive deep-sky astroimages is easier than ever with Celestron’s Rowe-Ackermann Schmidt Astrograph (RASA) V2, the perfect companion to today’s top DSLR or astronomical CCD cameras. This fast, wide-field f\/2.2 system allows for shorter exposure times compared to traditional f\/10 astroimaging, without sacrificing resolution. Because shorter sub-exposure times are possible, your equatorial mount won’t need to accurately track over extended periods. The short focal length also lessens equatorial tracking demands. In many cases, autoguiding will not be required.\u003c\/p\u003e\u003cp style=\"box-sizing: inherit; margin: 0px 0px 15px; padding: 0px; color: rgb(51, 62, 72); font-family: \" open sans arial helvetica sans-serif font-size:=\"\"\u003eRASA 11 V2 builds on the legacy of Celestron’s Schmidt Cameras, which allowed astrophotographers to produce images with much shorter exposure times on film in the 1970s.\u003c\/p\u003e\u003cp style=\"box-sizing: inherit; margin: 0px 0px 15px; padding: 0px; color: rgb(51, 62, 72); font-family: \" open sans arial helvetica sans-serif font-size:=\"\"\u003eToday, with CCD sensor sizes as large as film or larger, the RASA 11 V2 offers a 43.3mm optimized image circle to capture pinpoint stars on the largest imaging chips. Optical performance for huge sensors with diagonals of up to 52mm wide is still excellent.\u003c\/p\u003e\u003cp style=\"box-sizing: inherit; margin: 0px 0px 15px; padding: 0px; color: rgb(51, 62, 72); font-family: \" open sans arial helvetica sans-serif font-size:=\"\"\u003eCombine this large image circle with a focal length of just 620mm and you have an instrument suitable for wide-field imaging, creating huge mosaics of the night sky, surveying, and even comet hunting.\u003c\/p\u003e\u003cp style=\"box-sizing: inherit; margin: 0px 0px 15px; padding: 0px; color: rgb(51, 62, 72); font-family: \" open sans arial helvetica sans-serif font-size:=\"\"\u003e\u003cspan style=\"box-sizing: inherit; font-weight: bolder;\"\u003eOptical Performance\u003c\/span\u003e\u003cspan style=\"box-sizing: inherit; font-weight: bolder;\"\u003e\u003cbr style=\"box-sizing: inherit;\"\u003e\u003c\/span\u003eThe RASA 11 V2 features optics with 4-element rare-earth glass for images free of false color and aberrations like coma and field curvature. The optical quality and spot size across the entire image circle are unprecedented for an astrograph in this price range—or even that of a much more expensive instrument. The design also provides minimal vignetting.\u003c\/p\u003e\u003cp style=\"box-sizing: inherit; margin: 0px 0px 15px; padding: 0px; color: rgb(51, 62, 72); font-family: \" open sans arial helvetica sans-serif font-size:=\"\"\u003e\u003cspan style=\"box-sizing: inherit; font-weight: bolder;\"\u003eAdvanced Features\u003c\/span\u003e\u003cspan style=\"box-sizing: inherit; font-weight: bolder;\"\u003e\u003cbr style=\"box-sizing: inherit;\"\u003e\u003c\/span\u003eRASA 11 V2 utilizes the new Ultra-Stable Focus System (USFS). At the heart of this system is a precision linear ball bearing. The bearing serves to minimize focus shift (unwanted lateral motion of the primary mirror during focusing which causes shifting of the image) and mirror flop (movement of the primary mirror when the telescope is pointing to different positions in the sky). The USFS is also compatible with the optional Celestron Focus Motor (#94155-A). The integrated 12V DC MagLev fan reduces cooldown time and provides optimal airflow through the dust filtered optical tube.\u003c\/p\u003e\u003cp style=\"box-sizing: inherit; margin: 0px; padding: 0px; color: rgb(51, 62, 72); font-family: \" open sans arial helvetica sans-serif font-size:=\"\"\u003eEngineered as a complete astroimaging system, every component of the RASA 11 V2 is optimized for peak performance with DSLR and astronomical CCD cameras. Down to the thickness of the glass used in the included fully-multicoated optical window or optional imaging filter, every component of the system has been taken into careful consideration to work together seamlessly. \u003cspan style=\"box-sizing: inherit;\"\u003eThe \u003c\/span\u003e\u003cspan style=\"box-sizing: inherit;\"\u003eDovetail CGE bars on the top of the optical tube provides a connection for use of optional accessories like a guidescope.\u003c\/span\u003e\u003c\/p\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":44013543161967,"sku":"91076","price":6253.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/91076_Rowe-Ackermann_Schmidt_Astrograph_v2_01_570x3803x__67223.jpg?v=1766555891"},{"product_id":"6-rowe-ackermann-schmidt-astrograph-rasa-6-optical-tube-assembly-cg-5-dovetail","title":"6” Rowe-Ackermann Schmidt Astrograph (RASA 6) Optical Tube Assembly (CG-5 Dovetail)","description":"\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLightning-Fast Imaging:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eRASA’s legendary ultra-fast f\/2.2 optics let you capture deep-sky images with briefer sub-exposures and less total exposure time —often eliminating the need for autoguiding.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMobile But Mighty:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eWeighing just 8.4 lb and featuring a versatile CG-5 dovetail, the RASA 6 is ready to image wherever you are.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSub-Arcsecond Potential:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eWith advanced optics capable of sub-arcsecond resolution, RASA 6 perfectly pairs with a high-resolution camera and favorable sky conditions to reveal fine structures in galaxies and nebulae.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExpansive Field of View:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDesigned for sensors up to 22mm diagonal, RASA 6 offers a generous 3.8° view that effortlessly frames wide celestial targets.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximized Light Throughput:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eCelestron’s proprietary XLT coatings ensure every image bursts with brightness and contrast.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConvenience \u0026amp; Customization:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eWith built-in features like a filter drawer and cooling fan—and optional upgrades—RASA 6 adapts to your evolving astroimaging needs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eMeet the Rowe-Ackermann Schmidt Astrograph (RASA) 6—a compact powerhouse that delivers spectacular astroimages, anywhere. Engineered with ultra-fast f\/2.2 optics, the smallest member of the RASA family proves that you don’t have to sacrifice performance for portability. Whether you’re chasing dark skies in remote locations or elevating your backyard setup, RASA 6 opens the door to new possibilities.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eRASA Performance for Everyone\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eFor astrophotographers who demand speed, precision, and convenience in a compact package, the 6” RASA is the ultimate tool. Its f\/2.2 design dramatically shortens exposure times, making it easier to capture crisp, detailed images of faint deep-sky objects without the heavy burden of extended tracking.\u003c\/p\u003e\n\u003cp\u003eSince RASA technology debuted in 2014, it has become the trusted choice for space surveillance and satellite tracking, relied upon by defense contractors, professional researchers, and governments alike. Like its bigger brothers, RASA 6 features a flat field for sharp stars from edge to edge. With RASA 6, you get the same technology trusted by the pros,\u003cspan\u003e \u003c\/span\u003e\u003cspan data-teams=\"true\"\u003ebut at a price that’s within reach for most, including those looking to add a second grab-and-go astrograph to their arsenal.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eRASA 6 defies the limitations of smaller and slower instruments. It collects more light and provides higher resolution than the refractors in its price range, allowing you to capture faint details in galaxies, nebulae, and star clusters in less time.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eShorter Exposures for a “Near-Real Time” Experience\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe magic of RASA 6 is in its speed. Its blazing f\/2.2 optics mean that even faint objects can be imaged in short exposures. When paired with sensitive cameras and live-stacking software on your laptop, you can create an almost real-time imaging experience. Bright, detailed images appear on your laptop screen in just a few short exposures.\u003c\/p\u003e\n\u003cp\u003eThe system’s ultra-fast focal ratio also eases the tracking demands on your mount. Since it allows using much shorter sub-exposures, you won’t need to use an autoguider in many instances, so you’ll spend less time dealing with equipment and more time exploring the universe.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eRASA Optical Design: Engineering Excellence\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe patented Rowe-Ackermann Schmidt optical design sets RASA 6 apart from other systems. This design features:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eA Schmidt corrector and a high-precision primary mirror that work in tandem to minimize optical aberrations.\u003c\/li\u003e\n\u003cli\u003eA specialized three-element lens group using rare-earth glass, which ensures that more of the light emitted from celestial objects is sharply focused onto your sensor.\u003c\/li\u003e\n\u003cli\u003eA removable 2” clear filter – engineered to maintain peak F\/2.2 performance when you add a filter, as no extra glass is added into the light path.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca title=\"StarBright XLT Optical Coating\" href=\"https:\/\/www.celestron.com\/pages\/starbright-xlt-optical-coatings\"\u003eStarBright XLT coating\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003esystem for all refractive and reflective surfaces, guaranteeing maximum light transmission and superior field illumination.\u003c\/li\u003e\n\u003cli\u003eThe RASA optical design provides better overall performance and field illumination than a Schmidt-Cassegrain in the Fastar-style configuration.\u003c\/li\u003e\n\u003cli\u003eCan be used with sensors up to 22mm diagonal to provide a wide 3.8° while delivering sub-arcsecond resolution.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eAdvanced Features \u0026amp; Versatility\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eDesigned with the modern astroimager in mind, RASA 6 is loaded with features that enhance usability and adaptability.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBuilt-in Filter System\u003c\/strong\u003e\u003cbr\u003eThe integrated filter drawer accepts both 1.25” and 2” filters, giving you the flexibility to use various imaging filters. The removable 2” clear filter (i.e. optical window) allows you to add optional filters if desired, without introducing additional glass into the optical path that could compromise performance at f\/2.2.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIntegrated Cooling System\u003c\/strong\u003e\u003cbr\u003eA 12V MagLev fan pulls air through mesh vents to rapidly cool the system to the ambient temperature to provide best images while keeping internal components dust-free.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eM42 Camera adapter\u003c\/strong\u003e\u003cbr\u003eThe included camera adapter for the RASA 6 features standard M42 threads, making it easy to mount a wide variety of astronomical CMOS cameras.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEnhance your setup\u003c\/strong\u003e\u003cbr\u003eTo achieve the highest level of performance, we strongly recommend pairing this telescope with the\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.celestron.com\/products\/focus-motor\"\u003eFocus Motor\u003c\/a\u003e,\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003e\u003ca href=\"https:\/\/www.celestron.com\/products\/aluminum-dew-shield-with-cover-cap-6\"\u003e6” Aluminum Dew Shield\u003c\/a\u003e\u003c\/span\u003e,\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003e\u003ca href=\"https:\/\/www.celestron.com\/products\/dew-heater-ring-6in\"\u003e6” Dew Ring\u003c\/a\u003e\u003c\/span\u003e, and\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003e\u003ca href=\"https:\/\/www.celestron.com\/products\/padded-telescope-bag-for-6-rasa-optical-tube\"\u003e6” RASA bag\u003c\/a\u003e\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e(all sold separately). The Focus Motor allows you to achieve sharp, precise focus electronically from the same computer used to control your camera. For dew prevention during long imaging sessions, the dew shield or dew ring will help keep your optics clear, especially in humid conditions. When your telescope is not in use, store your RASA in this protected, portable, grab-and-go case.\u003c\/p\u003e\n\u003ch2\u003e\n\u003cbr\u003e\u003cstrong\u003eA Universe of Possibilities in a Compact Package\u003c\/strong\u003e\n\u003c\/h2\u003e\n\u003cp\u003eThe 6” RASA offers the perfect blend of speed, precision, and portability. Its game-changing optical design and robust mechanical features empower you to capture the night sky like never before. Embrace a grab-and-go astrograph that opens up a big, boundless universe.\u003c\/p\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":44014116733039,"sku":"91071","price":2361.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/91071_6in_Rowe-Ackermann_Schmidt_Astrograph_01_c87fb001-e01d-42bd-baf7-ce51d98a67c5__88610.jpg?v=1766571869"},{"product_id":"celestron-rasa-36-v2","title":"Celestron RASA 36cm V2 Rowe-Ackermann Schmidt Astrograph","description":"\u003cp\u003eThe \u003cstrong\u003eCelestron RASA 36 V2 Optical Tube Assembly (CGE Dovetail)\u003c\/strong\u003e is the flagship of Celestron's Rowe-Ackermann Schmidt Astrograph line — a 36 cm (14\", 355.6 mm) aperture optical system operating at an extraordinarily fast \u003cstrong\u003ef\/2.2\u003c\/strong\u003e with a 790 mm focal length. Built around a 4-element lens group using extra-low dispersion (ED) glass, it delivers a flat, coma- and astigmatism-free field across a huge 60 mm image circle. With an extended 400–900 nm spectral range, the new Ultra-Stable Focus System (USFS), and StarBright XLT coatings, the RASA 36 V2 is the largest and fastest off-the-shelf astrograph Celestron makes — engineered for professional scientific imaging and the most demanding wide-field astrophotography.\u003c\/p\u003e\n\u003ch2\u003eWho Is This Product Best For?\u003c\/h2\u003e\n\u003cp\u003eThe RASA 36 V2 is built for \u003cstrong\u003eadvanced and professional astrophotographers, observatory and research installations, and scientific\/space-surveillance users\u003c\/strong\u003e. It suits imagers who want to capture faint, wide-field deep-sky targets in very short exposures, as well as institutions performing Space Situational Awareness (SSA), near-Earth object tracking, and sky surveys. It is a camera-only instrument for serious, well-funded imaging programs — not a visual telescope and not a beginner or casual setup.\u003c\/p\u003e\n\u003ch2\u003eWhy Choose This Product?\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlistering f\/2.2 speed\u003c\/strong\u003e — capture faint, low-surface-brightness deep-sky objects in a fraction of the exposure time of slower systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e14\" \/ 36 cm aperture\u003c\/strong\u003e — the largest RASA Celestron manufactures, with ~2581× the light-gathering power of the human eye.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4-element ED lens group\u003c\/strong\u003e — pinpoint stars free of false color, coma, and field curvature across a 60 mm image circle.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUltra-Stable Focus System (USFS)\u003c\/strong\u003e — a precision linear ball bearing minimizes image shift and mirror flop for locked-in focus from zenith to horizon.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtended 400–900 nm spectral range\u003c\/strong\u003e — captures near-IR signal most telescopes can't, for brighter overall detection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt-in cooling\u003c\/strong\u003e — 12V MagLev fan with dust-filtered vents speeds thermal equilibrium.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexible mounting\u003c\/strong\u003e — dual CGE \/ Losmandy-D dovetail bars and rear-cell accessory holes.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eRecommended Uses\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eWide-field deep-sky astrophotography of nebulae, galaxies, and large emission regions\u003c\/li\u003e\n\u003cli\u003eFast, short-exposure imaging of faint, low-surface-brightness targets\u003c\/li\u003e\n\u003cli\u003eSpace surveillance and Space Situational Awareness (SSA)\u003c\/li\u003e\n\u003cli\u003eNear-Earth object tracking and wide-field sky surveys\u003c\/li\u003e\n\u003cli\u003eObservatory-class and permanent-pier scientific imaging programs\u003c\/li\u003e\n\u003cli\u003eMulti-system professional RASA deployments\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eCompatibility and Accessory Notes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCamera mounting:\u003c\/strong\u003e Imaging sensor mounts at the front prime-focus location. Includes a 48 mm (M48) camera adapter; custom adapters allow a field of view up to 4.4°.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBack focus:\u003c\/strong\u003e 55 mm with the included camera adapter; 77.5 mm from the top of the threaded collar — accommodates a wide range of imaging sensors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFront-end load limit:\u003c\/strong\u003e Celestron recommends no more than ~38 lbs of camera\/accessory load at 5.6\" from the corrector.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMount:\u003c\/strong\u003e Dual CGE \/ Losmandy-D dovetail bars. At ~34 kg (75 lb) tube weight, a high-capacity mount well above that figure is required.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFocus motor:\u003c\/strong\u003e Compatible with the optional Celestron Focus Motor (#94155-A) for motorized, backlash-free focusing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded:\u003c\/strong\u003e M48 camera adapter and fan battery pack. Finderscope is \u003cstrong\u003enot\u003c\/strong\u003e included.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eImportant Limitations\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCamera-only — not for visual observing.\u003c\/strong\u003e The RASA design places the sensor at the front of the tube; it cannot be used with eyepieces.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNot a beginner instrument.\u003c\/strong\u003e It requires imaging experience, a capable mount, and appropriate camera\/adapter selection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLarge and heavy\u003c\/strong\u003e — ~34 kg (75 lb), 42.5\" long, 16\" diameter. A two-person lift is required to mount it.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eNo finderscope included.\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFreight-only shipping.\u003c\/strong\u003e Due to its size, weight, and precision alignment, it ships via palletized LTL truck freight; freight is billed separately.\u003c\/li\u003e\n\u003cli\u003eFront-end accessory load is limited — oversized camera trains can affect performance and balance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eIs this good for beginners?\u003c\/strong\u003e No. The RASA 36 V2 is a professional-grade astrograph for experienced imagers and institutions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is it best used for?\u003c\/strong\u003e Fast, wide-field deep-sky astrophotography and scientific applications such as space surveillance and sky surveys.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs it for visual observing or astrophotography?\u003c\/strong\u003e Astrophotography only — it is a camera-based astrograph and cannot be used visually.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat cameras and adapters does it work with?\u003c\/strong\u003e It ships with a 48 mm (M48) camera adapter and accommodates a wide range of imaging sensors within its 55–77.5 mm back-focus range; custom adapters extend the usable field up to 4.4°.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it require additional accessories?\u003c\/strong\u003e Yes — a high-capacity mount, an imaging camera with the correct adapter, and typically a guiding solution. A focus motor (#94155-A) is optional but recommended.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat makes it different from other astrographs?\u003c\/strong\u003e Its combination of 36 cm aperture, f\/2.2 speed, flat 60 mm image circle, extended 400–900 nm range, and the Ultra-Stable Focus System makes it the fastest large-aperture astrograph available off-the-shelf.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhen should it not be recommended?\u003c\/strong\u003e For visual observers, beginners, portable\/travel setups, light or budget mounts, or anyone who can't accommodate freight delivery and a two-person installation.\u003c\/p\u003e\n\u003ch2\u003eOur Recommendation\u003c\/h2\u003e\n\u003cp\u003eAt Ontario Telescope and Accessories, we recommend the Celestron RASA 36 V2 for the advanced imager, observatory, or research program that needs maximum aperture and speed for wide-field deep-sky or scientific imaging. It solves the problem of capturing faint, expansive targets quickly and with pinpoint star quality edge-to-edge. It is not the right choice for visual observers, beginners, or portable setups — but for serious camera-based imaging at scale, the RASA 36 V2 is in a class of its own. Note that this is a freight-shipped, two-person-install instrument; plan your mount and observing site accordingly.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eShipping - Shipping will be quoted separately.  This ships on a pallet and direct from Celestron.\u003c\/p\u003e","brand":"Celestron","offers":[{"title":"Default","offer_id":53181078143087,"sku":"91078","price":20848.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0049\/6239\/files\/91078_Rowe-Ackermann_Schmidt_Astrograph_36cm_v2_01.jpg?v=1780430303"}],"url":"https:\/\/ontariotelescope.com\/collections\/celestron-rasa.oembed","provider":"Ontario Telescope and Accessories","version":"1.0","type":"link"}