{"product_id":"sharpstar-sca260-260mm-cassegrain-astrograph-sca260","title":"Sharpstar SCA260 Aspherical Cassegrain Astrograph - Version 2  (SCA260V2)","description":"\u003ch2\u003eSharpStar SCA260 260mm Cassegrain Astrograph\u003c\/h2\u003e\n\u003cdiv\u003eAfter the launch of the fast-focal-ratio aspherical Cassegrain astrograph SCA260, Sharpstar has been tried again and again to optimize it.\u003cbr data-mce-fragment=\"1\"\u003e \u003cbr data-mce-fragment=\"1\"\u003eThe optimized SCA260 is still designed with aspherical mirror which entails much more sophisticated research and development. The process of producing, manufacturing and testing is more complicated compared with that of an ordinary reflective mirror,and the Pyrex-like material used is more stable than those traditionally used. The telescope is wrapped with durable carbon fiber material,which is lightweight, durable, and beautiful.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr\u003e\n\u003cdiv\u003eBoth the primary and secondary mirrors of SCA260 wear enhanced aluminum coatings, which ensure they can achieve a high reflectivity of more than 95%. We further simplify the optical axis mechanical structure.\u003cbr\u003eA 3\" large corrector, featuring a three-element lens structure, is laid in the optical path, enabling the whole optical system to better achieve full-frame imaging and control the vignette.\u003cbr\u003e\u003cbr\u003eThe delicately pierced handle bar is completely made from CNC-manufactured aluminum, which can be used as a base for the attachment of other accessories, optimizing the supporting mechanical construction and decreasing its weight.\u003cbr\u003e \u003cbr\u003eBased on the original, we have upgraded the travel length of the 3.35\" dedicated focuser to 50mm for greater practicability. We have also upgraded the load of the focuser to allow you to add the accessories as you like, ensuring no slippage and smooth operation when shooting with accessories.\u003cbr\u003e \u003cbr\u003eWe also added a 360 ° rotator at the rear back of the focusing device, so we don't have to worry about the EAF data line getting entangled in the process. Three section M68X0.1 thread, M54 × 0.75 thread and M48 × In the 0.75 thread adapter ring, a built-in 2-inch filter thread is added to meet different needs, facilitate connection to most imaging terminals on the market and perfect focusing.\u003c\/div\u003e\n\u003cdiv\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eTechnical Specifications\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/h3\u003e\n\u003cp data-mce-fragment=\"1\"\u003eAperture size：260mm\u003cbr\u003eFocal length\/Focal ratio：1300mm\/f5\u003cbr\u003ePrimary mirror type：aspherical reflective mirror\u003cbr\u003ePrimary mirror material：PZ33(similar to Pyrex glass)\u003cbr\u003eCorrector：three-element air-spaced lens structure\u003cbr\u003eMinor axis：120mm\u003cbr\u003eSecondary mirror type：spherical reflective mirror\u003cbr\u003eImage circle：80mm\u003cbr\u003eTube material：carbon fiber\u003cbr\u003eTube diameter：304mm\u003cbr\u003eTube weight：14.5kg\u003cbr\u003eResolution：0.46\u003cbr\u003eFocuser：3.35\"\u003cbr\u003eLimiting visual magnitude：13.8\u003cbr\u003eM48 from focal plane：71mm\u003c\/p\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eIn the Box\u003c\/h3\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eSharpstar SCA260 Aspherical Cassegrain Astrograph - Version 2\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eMounting Rings\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eLosmandy-style Dovetail\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eCarry Handle\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e3.35\" Focuser\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e360-degree Rotator\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eWarranty \u0026amp; Manuals\u003c\/h3\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003eSharpStar Warranty\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"SharpStar","offers":[{"title":"Default Title","offer_id":43125828780261,"sku":"SS-SCA260V2","price":6461.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/sharpstar-sca260-aspherical-cassegrain-astrograph-version-2-sca260-astronomy-plus-1.webp?v=1690487041","url":"https:\/\/istronomyplus.com\/products\/sharpstar-sca260-260mm-cassegrain-astrograph-sca260","provider":"Astronomy Plus – Telescopes \u0026 Astrophotography Canada","version":"1.0","type":"link"}