{"product_id":"ioptron-8-ritchey-chretien-telescope-rc8-used-very-good","title":"iOptron 8\" Ritchey-Chrétien Telescope (RC8) – Used (Very Good)","description":"\u003cp\u003e\u003cstrong\u003eUsed – Very Good Condition.\u003c\/strong\u003e A pre-owned iOptron 8\" Ritchey-Chrétien (RC8) optical tube, complete with its original Losmandy-style mounting dovetail and Vixen-style top dovetail.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eiOptron 8\" Ritchey-Chrétien optical tube (200mm, 1624mm focal length, f\/8) with 2\" dual-speed Crayford focuser\u003c\/li\u003e\n\u003cli\u003eOriginal Losmandy-style (D-style) dovetail bar on the bottom for mounting\u003c\/li\u003e\n\u003cli\u003eOriginal Vixen-style (V-style) dovetail bar on top for accessories such as a guide scope or finder\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAbout the iOptron RC8\u003c\/h3\u003e\n\u003cp\u003eThe Ritchey-Chrétien design is the choice of professional observatories for a reason: it delivers images free of coma, spherical and chromatic aberration, making it ideal for both colour and monochrome imaging. The RC8 uses low-thermal-expansion quartz primary and secondary mirrors, so focus holds steady as the night cools, and its fixed primary mirror eliminates the image shift you get when focusing many other reflector designs. A steel tube with multiple knife-edge baffles suppresses stray light for better contrast.\u003c\/p\u003e\n\u003cp\u003eWith 1624mm of focal length at f\/8, the RC8 is a superb small-galaxy, planetary nebula and globular cluster imager — and the top and bottom dovetails make it easy to mount and to piggyback guiding gear. See our \u003ca href=\"https:\/\/ontariotelescope.com\/products\/ioptron-8-inch-ritchey-chretien-telescope-rc8\"\u003enew RC8 listing\u003c\/a\u003e for full specifications.\u003c\/p\u003e\n\n\u003ch3\u003eFinal Sale\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eThis item is sold as a Final Sale.\u003c\/strong\u003e All used equipment sales are final. Please review our \u003ca href=\"https:\/\/ontariotelescope.com\/pages\/terms-policy\"\u003eUsed Equipment Sale Policy\u003c\/a\u003e before purchasing.\u003c\/p\u003e","brand":"iOptron","offers":[{"title":"Default Title","offer_id":67627451416687,"sku":"6112-USED","price":1175.0,"currency_code":"CAD","in_stock":true}],"url":"https:\/\/ontariotelescope.com\/products\/ioptron-8-ritchey-chretien-telescope-rc8-used-very-good","provider":"Ontario Telescope and Accessories","version":"1.0","type":"link"}