{"product_id":"sharpstar-f-5-aspheric-super-cassegrain-astrograph-telescope-sha-sca260","title":"SharpStar SCA260V2 f\/5 Aspheric Super Cassegrain Astrograph - SHA-SCA260V2","description":"\u003ch3 style=\"text-align: center;\"\u003eSharpStar SCA260 f\/5 Aspheric Cassegrain Astrograph V2\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSharpStar 260 mm (10.24\") Aperture, 1300 mm Cassegrain Astrograph\u003c\/li\u003e\n\u003cli\u003eIdeal for using both imaging and observation\u003c\/li\u003e\n\u003cli\u003eAspheric, Corrected, Cassegrain Astrograph design\u003c\/li\u003e\n\u003cli\u003e3\" heavy-duty barrel Rack \u0026amp; Pinion Focuser with 360º rotator\u003c\/li\u003e\n\u003cli\u003e0.46 arcsecond resolution\u003c\/li\u003e\n\u003cli\u003e13.8 limiting visual magnitude\u003c\/li\u003e\n\u003cli\u003e15 kg gross weight with tube ring, handle, and dovetail plate\u003c\/li\u003e\n\u003cli\u003eIncludes tube rings, dew cap, handle, and dovetail mounting plate\u003c\/li\u003e\n\u003cli\u003eIncludes Cooling Fans\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ccenter\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/CwrSqi6pAT8?si=tLrSXwaPNxv7Xz-n\" height=\"315\" width=\"560\" allowfullscreen=\"\" referrerpolicy=\"strict-origin-when-cross-origin\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" frameborder=\"0\"\u003e\u003c\/iframe\u003e\u003c\/center\u003e\n\u003cp\u003eThis SharpStar f\/5, (10.24\" aperture) Aspheric Super Cassegrain Astrograph Telescope is a perfect addition to your optical equipment if you want to do astro-imaging with a fine quality, fast Astrograph, but you may also want to do observing with a high quality Cassegrain Reflector with a moderate field of view and well-corrected, low-aberration images. This Astrograph from SharpStar is a new design which fills a previously existing gap in the astronomical telescope market place.\u003c\/p\u003e\n\u003cp\u003eCompared with conventional parabolic mirrors, the process of producing, manufacturing, and testing Aspheric mirrors is much more intricate, and opticians know that these mirrors require more sophisticated testing to obtain the desired Aspheric surface figure. The Aspheric Super Cassegrain Astrograph Reflector is second to none, considering its focal ratio, aperture, and well corrected imagery. This f\/5 Aspheric Super Cassegrain Astrograph from SharpStar uses an Aspherical primary mirror and a Spherical secondary mirror in its reflective design, with the addition of a 3\", 3-element refractive corrector, which is built into the optical path of the assembly inside the tube.\u003c\/p\u003e\n\u003cp\u003eThe telescope tube is wrapped with durable carbon fiber material, artistically enhancing its appearance while sharply decreasing its weight. Sharpstar SCA260 adopts PZ33, a Pyrex-like glass, enabling the primary mirror to reach a quite stable imaging state in a short time. Both primary and secondary mirrors have an enhanced aluminum coating, thus keeping a reflectivity at more than 95%. The one-piece X-shaped strut of the secondary mirror keeps a solid and unbreakable structure. The included 3.3\" Rack-and-Pinion focuser has a stronger load capacity and longer 50mm travel length.   It can be smoothly adjusted for best focus, with its dual, 1:10 fine focus adjustment.\u003c\/p\u003e\n\u003cp\u003eThe delicately pierced handle bar is made from CNC-manufactured solid aluminum, which can be used as a base for the attachment of other accessories. The new design of the telescope handle is an aesthetic and mechanical improvement to satisfy the demands of astronomy enthusiasts. This Astrograph includes the handle and dual rings, and also a dovetail mounting plate.\u003c\/p\u003e\n\u003cp\u003eA 3\" diameter, 3-element refractive corrector built into the optical path of the assembly inside the tube enables the whole optical system to better achieve full-frame imaging and control vignetting. The 75 mm back-focus and two-section thread design with M54×0.75 and M48×0.75 thread tapped on the focuser also prepare the telescope for most stock imaging devices and makes sure the celestial subject you have in the objective astrograph's field of view can be perfectly projected onto the focal plane of your camera. It has an 80 mm image circle.\u003c\/p\u003e\n\u003cp\u003eThis f\/5 Aspheric Super Cassegrain Astrograph Telescope from SharpStar is an ideal moderately fast f\/number Astrograph for doing critical astro-imaging work, but is also good for visual observation when this is desired. The Aspheric mirror design of this Astrograph will delight the most serious of astro-imaging enthusiasts when their images are revealed in their final processing. Refer to the photos provided to see the schematic diagram of the dimensions of this Astrograph.\u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003eSpecifications:\u003c\/h3\u003e\n\u003ctable style=\"width: 100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 29.471545%;\"\u003eManufacturer:\u003c\/td\u003e\n\u003ctd style=\"width: 69.308943%;\"\u003eSharpStar\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 29.471545%;\"\u003eMfr. SKU:\u003c\/td\u003e\n\u003ctd style=\"width: 69.308943%;\"\u003eSCA260V2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 29.471545%;\"\u003eTelescope Design:\u003c\/td\u003e\n\u003ctd style=\"width: 69.308943%;\"\u003eAspheric Corrected Cassegrain Astrograph\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 29.471545%;\"\u003eFocuser:\u003c\/td\u003e\n\u003ctd style=\"width: 69.308943%;\"\u003e3.35\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 29.471545%;\"\u003eFocuser Travel:\u003c\/td\u003e\n\u003ctd style=\"width: 69.308943%;\"\u003e50 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 29.471545%;\"\u003eIncludes Rotator?\u003c\/td\u003e\n\u003ctd style=\"width: 69.308943%;\"\u003eYes, 360º\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 29.471545%;\"\u003eObjective Aperture:\u003c\/td\u003e\n\u003ctd style=\"width: 69.308943%;\"\u003e260 mm (10.24\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 29.471545%;\"\u003eFocal Length:\u003c\/td\u003e\n\u003ctd style=\"width: 69.308943%;\"\u003e1300 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 29.471545%;\"\u003eFocal Ratio:\u003c\/td\u003e\n\u003ctd style=\"width: 69.308943%;\"\u003ef\/5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 29.471545%;\"\u003eResolution:\u003c\/td\u003e\n\u003ctd style=\"width: 69.308943%;\"\u003e0.46 arcsecond\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 29.471545%;\"\u003eLimiting Magnitude:\u003c\/td\u003e\n\u003ctd style=\"width: 69.308943%;\"\u003e13.8, Visual Limit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 29.471545%;\"\u003eCoatings:\u003c\/td\u003e\n\u003ctd style=\"width: 69.308943%;\"\u003eEnhanced-Aluminum coatings\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 29.471545%;\"\u003ePrimary Mirror:\u003c\/td\u003e\n\u003ctd style=\"width: 69.308943%;\"\u003eAspheric Reflective Mirror\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 29.471545%;\"\u003eSecondary Mirror:\u003c\/td\u003e\n\u003ctd style=\"width: 69.308943%;\"\u003eSpherical Reflective Mirror\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 29.471545%;\"\u003ePrimary Mirror Material:\u003c\/td\u003e\n\u003ctd style=\"width: 69.308943%;\"\u003ePZ33 (similar to Pyrex glass)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 29.471545%;\"\u003eCorrector Lens:\u003c\/td\u003e\n\u003ctd style=\"width: 69.308943%;\"\u003e3\", 3-element, air-spaced lenses\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 29.471545%;\"\u003eMinor Axis:\u003c\/td\u003e\n\u003ctd style=\"width: 69.308943%;\"\u003e120 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 29.471545%;\"\u003eImage Circle:\u003c\/td\u003e\n\u003ctd style=\"width: 69.308943%;\"\u003e80 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 29.471545%;\"\u003eTube Material:\u003c\/td\u003e\n\u003ctd style=\"width: 69.308943%;\"\u003eCarbon Fiber\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 29.471545%;\"\u003eTube Diameter:\u003c\/td\u003e\n\u003ctd style=\"width: 69.308943%;\"\u003e304 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 29.471545%;\"\u003eIncludes Fan:\u003c\/td\u003e\n\u003ctd style=\"width: 69.308943%;\"\u003eYes, with switch on rear cell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 29.471545%;\"\u003eWeight:\u003c\/td\u003e\n\u003ctd style=\"width: 69.308943%;\"\u003e14.5 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 29.471545%;\"\u003eBack Focus:\u003c\/td\u003e\n\u003ctd style=\"width: 69.308943%;\"\u003e70 mm from the base of the M48 thread on the housing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"SharpStar","offers":[{"title":"Default Title","offer_id":39536557621361,"sku":"SHA-SCA260V2","price":4145.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0851\/2766\/files\/SCA260_Right.png?v=1776459191","url":"https:\/\/khanscope.com\/en-fr\/products\/sharpstar-f-5-aspheric-super-cassegrain-astrograph-telescope-sha-sca260","provider":"Khan Scope Centre","version":"1.0","type":"link"}