{"product_id":"celestron-rasa-36-rowe-ackermann-schmidt-astrograph-v2-ota","title":"Celestron RASA 36cm Rowe–Ackermann Schmidt Astrograph V2 OTA","description":"\u003ch2\u003eCelestron 36cm Rowe–Ackermann Schmidt Astrograph (RASA 36) V2 Optical Tube Assembly – CGE Dovetail\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eProfessional ultra-fast f\/2.2 astrograph for advanced imaging \u0026amp; scientific applications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Celestron RASA 36 V2 is a flagship, professional-grade astrograph designed for extreme wide-field performance, ultra-fast imaging, and precision scientific work. Built by Celestron, this 14\" Rowe–Ackermann Schmidt Astrograph delivers a unique combination of \u003cstrong\u003elarge aperture, blazing f\/2.2 speed, and massive corrected image circle\u003c\/strong\u003e — making it ideal for space situational awareness (SSA), research, and elite-level astrophotography.\u003c\/p\u003e\n\u003cp\u003eThis is Celestron’s \u003cstrong\u003elargest and fastest off-the-shelf RASA\u003c\/strong\u003e, engineered for users who require both resolution and wide-field coverage in a single optical system.\u003c\/p\u003e\n\u003cblockquote\u003e\n\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e The RASA 36 V2 is a dedicated imaging instrument and does \u003cstrong\u003enot\u003c\/strong\u003e support visual observing with eyepieces.\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003chr\u003e\n\u003ch2\u003eMassive 36cm Aperture with Ultra-Fast f\/2.2 Optics\u003c\/h2\u003e\n\u003cp\u003eWith a \u003cstrong\u003e355.6mm (14\") aperture\u003c\/strong\u003e and \u003cstrong\u003e790mm focal length\u003c\/strong\u003e, the RASA 36 V2 gathers an extraordinary amount of light while maintaining a compact optical path.\u003c\/p\u003e\n\u003cp\u003eKey advantages:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ef\/2.2 focal ratio\u003c\/strong\u003e for dramatically shorter exposure times\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIdeal for rapid sky surveys, transient detection, and deep-sky imaging\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eEnables wide mosaics, comet hunting, and space surveillance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eReduced tracking demands compared to long focal length systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eUnlike most telescopes limited to visible wavelengths, the RASA 36 V2 focuses an \u003cstrong\u003eextended spectral range from 400–900nm\u003c\/strong\u003e, allowing sensors to capture additional near-IR signal for a brighter overall image.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eHuge Corrected Image Circle for Large Sensors\u003c\/h2\u003e\n\u003cp\u003eDesigned for today’s biggest imaging chips, the RASA 36 V2 provides:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e60mm optimised image circle\u003c\/strong\u003e with pinpoint stars\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eUsable field up to 70mm\u003c\/strong\u003e with only minimal edge performance loss\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eUp to \u003cstrong\u003e4.4° field of view\u003c\/strong\u003e (5.1° usable)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis makes it exceptionally well suited to large-format astronomical cameras and scientific imaging systems.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eAdvanced Optical Design with ED Glass\u003c\/h2\u003e\n\u003cp\u003eA precision 4-element lens group featuring \u003cstrong\u003eextra-low dispersion (ED) glass\u003c\/strong\u003e suppresses:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eChromatic aberration\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eField curvature\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eOff-axis coma\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAstigmatism\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eCombined with Celestron’s proprietary \u003cstrong\u003eXLT multi-coatings and enhanced aluminium mirrors\u003c\/strong\u003e, the system delivers:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eExcellent light throughput\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHigh contrast\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eUniform sharpness across the field\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSpot sizes under \u003cstrong\u003e6.3 μm RMS\u003c\/strong\u003e across the FOV\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003ePerformance typically reserved for bespoke observatory instruments — now available in a production astrograph.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eUltra-Stable Focus System (USFS)\u003c\/h2\u003e\n\u003cp\u003eCritical focusing at f\/2.2 demands mechanical perfection. The RASA 36 V2 employs Celestron’s \u003cstrong\u003eUltra-Stable Focus System\u003c\/strong\u003e, using a precision linear ball bearing to:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eMinimise focus shift\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eReduce mirror flop\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMaintain optical alignment while slewing\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe system is compatible with the optional Celestron Focus Motor for automated focusing workflows.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eImaging-Ready Professional Features\u003c\/h2\u003e\n\u003cp\u003eEvery detail of the RASA 36 V2 is engineered for demanding imaging environments:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eIntegrated \u003cstrong\u003e12V MagLev cooling fan\u003c\/strong\u003e with dust-filtered vents\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eExtended \u003cstrong\u003e77.5mm back focus\u003c\/strong\u003e for flexible camera integration\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDual CGE \/ Losmandy-style dovetail bars\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRear carrying handles for safer mounting\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMultiple threaded mounting points for accessories\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePush–pull collimation screws for precision optical alignment (rarely required)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIncludes \u003cstrong\u003eM48 camera adapter\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA complete imaging platform — not just an optical tube.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eFreight Delivery Requirement\u003c\/h2\u003e\n\u003cp\u003eDue to its size, weight, and precision alignment, the RASA 36 V2 is shipped \u003cstrong\u003epalletised via LTL truck freight\u003c\/strong\u003e to preserve optical performance. This professional delivery method is mandatory for all end customers.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e14\" (355.6mm) Rowe–Ackermann Schmidt Astrograph\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eUltra-fast \u003cstrong\u003ef\/2.2\u003c\/strong\u003e optical system\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e60mm corrected image circle (70mm usable)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eExtended spectral response: \u003cstrong\u003e400–900nm\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eED glass optics with XLT coatings\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eUltra-Stable Focus System\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIntegrated MagLev cooling fan\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDual CGE dovetail bars\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eOptimised for large-format imaging sensors\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eBuilt for scientific, SSA, and advanced astroimaging applications\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eOptical Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eOptical Design: Rowe–Ackermann Schmidt Astrograph\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAperture: 355.6mm (14\")\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFocal Length: 790mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFocal Ratio: f\/2.2\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eImage Circle: 60.1mm optimised\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eUsable Field: 70mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eResolution (Dawes): 0.36 arc sec\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eLight Gathering Power: 2581× human eye\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWavelength Range: 400–900nm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eOptical Coatings: Enhanced aluminium + XLT\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003ePhysical Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eOptical Tube Length: 1079.5mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eOptical Tube Diameter: 406.4mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWeight: 75 lb (34.02kg)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eConstruction: Aluminium\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFocuser: Ultra-Stable Focus System\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDovetail: CGE \/ Losmandy\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eIncluded Items\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e48mm camera adapter\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFan battery pack\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eWhy Choose the Celestron RASA 36 V2?\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eLargest off-the-shelf RASA available\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eUltra-fast f\/2.2 system for rapid acquisition\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMassive corrected field for modern large sensors\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eExtended spectral range for brighter data capture\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eProfessional mechanical stability and cooling\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIdeal for SSA, research, and elite astrophotography\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003cp\u003eIf you require \u003cstrong\u003emaximum aperture, extreme speed, and wide-field precision\u003c\/strong\u003e in a production astrograph, the \u003cstrong\u003eCelestron RASA 36 V2\u003c\/strong\u003e stands in a class of its own — delivering observatory-level performance for demanding professional and scientific imaging applications.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eSolar safety reminder: Never observe the Sun without a certified solar filter.\u003c\/em\u003e\u003c\/p\u003e","brand":"Celestron","offers":[{"title":"Default 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