{"product_id":"gso-8-f-8-ritchey-chretien-m-lrs-carbon-fibre-ota","title":"GSO 8\" F\/8 Ritchey-Chrétien M-LRS Carbon Fibre OTA","description":"\u003ch2 data-path-to-node=\"6\"\u003eGSO 8\" F\/8 Ritchey-Chrétien M-LRS Carbon Fibre OTA\u003c\/h2\u003e\n\u003cp data-path-to-node=\"7\"\u003e\u003cb data-path-to-node=\"7\" data-index-in-node=\"0\"\u003eThe Ultimate Advanced Deep-Sky Astrograph for Indian Astrophotographers\u003c\/b\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"8\"\u003eThe \u003cb data-path-to-node=\"8\" data-index-in-node=\"4\"\u003eRitchey-Chrétien (RC)\u003c\/b\u003e optical configuration is the choice design for professional observatories globally—even the famous Hubble Space Telescope utilizes this precise system. Brought to you by \u003cb data-path-to-node=\"8\" data-index-in-node=\"196\"\u003eModern Telescopes, India’s largest online telescope store\u003c\/b\u003e, the Guan Sheng Optical (GSO) 8\" F\/8 Carbon Fibre RC is a powerhouse astrograph built explicitly for breathtaking deep-sky imaging.\u003c\/p\u003e\n\u003ch3 data-path-to-node=\"9\"\u003eThe Modern Telescopes Advantage\u003c\/h3\u003e\n\u003cp data-path-to-node=\"10\"\u003eWhen you purchase high-end astrophotography gear through the Modern Telescopes network, you aren’t just getting a box—you get professional reliability:\u003c\/p\u003e\n\u003cul data-path-to-node=\"11\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"11,0,0\"\u003e\u003cb data-path-to-node=\"11,0,0\" data-index-in-node=\"0\"\u003eAuthorized GSO Taiwan Import:\u003c\/b\u003e 100% genuine optics with direct brand warranty support.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"11,1,0\"\u003e\u003cb data-path-to-node=\"11,1,0\" data-index-in-node=\"0\"\u003eSecure, Insured Shipping:\u003c\/b\u003e Handled with extreme care across all states in India.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"11,2,0\"\u003e\u003cb data-path-to-node=\"11,2,0\" data-index-in-node=\"0\"\u003eExpert Post-Purchase Assistance:\u003c\/b\u003e Need help setting up or calculating your imaging train? Our team of optical specialists is just a call away.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-path-to-node=\"13\"\u003eKey Product Highlights\u003c\/h3\u003e\n\u003cul data-path-to-node=\"14\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"14,0,0\"\u003e\u003cb data-path-to-node=\"14,0,0\" data-index-in-node=\"0\"\u003ePremium Carbon Fibre Tube:\u003c\/b\u003e Engineered to drastically reduce thermal expansion. As night temperatures fluctuate during long imaging sessions in India, your focal point remains locked and perfectly sharp.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"14,1,0\"\u003e\u003cb data-path-to-node=\"14,1,0\" data-index-in-node=\"0\"\u003ePrecision Quartz Optics:\u003c\/b\u003e Features a concave hyperbolic primary mirror and convex secondary mirror with a surface correction of 1\/12th Lambda PV or better.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"14,2,0\"\u003e\u003cb data-path-to-node=\"14,2,0\" data-index-in-node=\"0\"\u003e99% Reflectivity:\u003c\/b\u003e Coated with highly reflective dielectric coatings ensuring minimal light loss for faint nebulae and distant galaxies.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"14,3,0\"\u003e\u003cb data-path-to-node=\"14,3,0\" data-index-in-node=\"0\"\u003eUpgraded Focuser Integration:\u003c\/b\u003e Comes out of the box with an upgraded dual-speed 2\" Crayford focuser (10:1 reduction) that easily couples with ZWO EAF and QHY EAF electronic focusers without requiring custom adapters.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-path-to-node=\"16\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable data-path-to-node=\"17\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOptical Attribute\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification Details\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"17,1,0,0\"\u003e\u003cb data-path-to-node=\"17,1,0,0\" data-index-in-node=\"0\"\u003eOptical Design\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"17,1,1,0\"\u003eRitchey-Chrétien (RC)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"17,2,0,0\"\u003e\u003cb data-path-to-node=\"17,2,0,0\" data-index-in-node=\"0\"\u003eAperture \/ Diameter\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"17,2,1,0\"\u003e203.2 mm (8 inches)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"17,3,0,0\"\u003e\u003cb data-path-to-node=\"17,3,0,0\" data-index-in-node=\"0\"\u003eFocal Length\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"17,3,1,0\"\u003e1624 mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"17,4,0,0\"\u003e\u003cb data-path-to-node=\"17,4,0,0\" data-index-in-node=\"0\"\u003eFocal Ratio\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"17,4,1,0\"\u003ef\/8\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"17,5,0,0\"\u003e\u003cb data-path-to-node=\"17,5,0,0\" data-index-in-node=\"0\"\u003eLinear Obstruction\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"17,5,1,0\"\u003e85 mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"17,6,0,0\"\u003e\u003cb data-path-to-node=\"17,6,0,0\" data-index-in-node=\"0\"\u003eCorrected Field Coverage\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"17,6,1,0\"\u003eOptimized for APS-C Sensors\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"17,7,0,0\"\u003e\u003cb data-path-to-node=\"17,7,0,0\" data-index-in-node=\"0\"\u003eBackfocus Distance\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"17,7,1,0\"\u003e159 mm (standard focuser) \/ 254 mm (from rear cell)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"17,8,0,0\"\u003e\u003cb data-path-to-node=\"17,8,0,0\" data-index-in-node=\"0\"\u003eTube Construction\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"17,8,1,0\"\u003eLightweight \u0026amp; Rigid Carbon Fibre\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"17,9,0,0\"\u003e\u003cb data-path-to-node=\"17,9,0,0\" data-index-in-node=\"0\"\u003eTotal Weight\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"17,9,1,0\"\u003e6.2 kg\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3 data-path-to-node=\"18\"\u003eWhat’s Included in the Box?\u003c\/h3\u003e\n\u003cul data-path-to-node=\"19\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"19,0,0\"\u003eGSO 8\" f\/8 RC Carbon Fibre Optical Tube Assembly (OTA)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"19,1,0\"\u003eHeavy-duty Dual-speed 2\" Crayford Focuser\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"19,2,0\"\u003eTop Vixen-style Dovetail Bar \u0026amp; Bottom Losmandy-style Dovetail Bar\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"19,3,0\"\u003eM90 Extension Rings (2 x 1\" and 1 x 2\") for adjusting backfocus\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"19,4,0\" id=\"p-rc_f5aefa1f389cec35-20\"\u003e\u003cspan class=\"citation-1 citation-end-1\"\u003e1.25\" Eyepiece Adapter \u0026amp; Finderscope Bracket\u003csup class=\"superscript\" data-turn-source-index=\"1\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e \u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"19,5,0\"\u003eProtective Dust Caps\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-path-to-node=\"21\"\u003eFrequently Asked Questions (FAQs)\u003c\/h3\u003e\n\u003ch4 data-path-to-node=\"22\"\u003e\u003cb data-path-to-node=\"22\" data-index-in-node=\"0\"\u003eQ: What makes a Carbon Fibre Ritchey-Chrétien telescope better than a metal tube version?\u003c\/b\u003e\u003c\/h4\u003e\n\u003cp data-path-to-node=\"23\"\u003e\u003cb data-path-to-node=\"23\" data-index-in-node=\"0\"\u003eA:\u003c\/b\u003e Metal tubes expand and contract significantly as ambient nighttime temperatures change, causing subtle shifts in focus over long-exposure astrophotography. The Carbon Fibre body of the GSO RC 8 provides near-zero thermal expansion, ensuring your star profiles remain crisp throughout the night without frequent re-focusing.\u003c\/p\u003e\n\u003ch4 data-path-to-node=\"24\"\u003e\u003cb data-path-to-node=\"24\" data-index-in-node=\"0\"\u003eQ: Is the GSO RC 8 compatible with automatic electronic focusers like the ZWO EAF?\u003c\/b\u003e\u003c\/h4\u003e\n\u003cp data-path-to-node=\"25\"\u003e\u003cb data-path-to-node=\"25\" data-index-in-node=\"0\"\u003eA:\u003c\/b\u003e Yes! The newly updated M-LRS focuser package supplied with this model includes direct compatibility with industry-standard autofocusers like the ZWO EAF and QHY EAF, meaning you won't need to purchase third-party custom modification brackets.\u003c\/p\u003e\n\u003ch4 data-path-to-node=\"26\"\u003e\u003cb data-path-to-node=\"26\" data-index-in-node=\"0\"\u003eQ: What cameras work best with the GSO 8\" RC OTA?\u003c\/b\u003e\u003c\/h4\u003e\n\u003cp data-path-to-node=\"27\"\u003e\u003cb data-path-to-node=\"27\" data-index-in-node=\"0\"\u003eA:\u003c\/b\u003e With a native corrected field designed to cover APS-C sensors cleanly, this telescope pairs beautifully with popular dedicated cooled astro-cameras (such as the ZWO ASI2600 or ASI533 series) as well as modern crop-sensor DSLR\/Mirrorless cameras.\u003c\/p\u003e\n\u003ch4 data-path-to-node=\"28\"\u003e\u003cb data-path-to-node=\"28\" data-index-in-node=\"0\"\u003eQ: Why should I buy my GSO RC 8 telescope from Modern Telescopes India?\u003c\/b\u003e\u003c\/h4\u003e\n\u003cp data-path-to-node=\"29\"\u003e\u003cb data-path-to-node=\"29\" data-index-in-node=\"0\"\u003eA:\u003c\/b\u003e As India’s largest telescope network supplying premium optics to major research institutes (like IITs, IIA, and IUCAA), Modern Telescopes guarantees secure, fully insured transit, genuine imports, and direct technical backing to ensure your astrophotography rig functions perfectly from night one.\u003c\/p\u003e\n\u003cp data-path-to-node=\"7\"\u003e \u003c\/p\u003e","brand":"GSO","offers":[{"title":"Default Title","offer_id":43325334061117,"sku":null,"price":101000.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0623\/6595\/8205\/files\/gso_8inch_RC_Carbon.jpg?v=1783268250","url":"https:\/\/moderntelescopes.net\/products\/gso-8-f-8-ritchey-chretien-m-lrs-carbon-fibre-ota","provider":"Modern Telescopes","version":"1.0","type":"link"}