{"product_id":"ioptron-photron-6-ritchey-chretien-telescope-6111","title":"iOptron Photron 6\" Ritchey-Chrétien Telescope (6111)","description":"\u003ch2\u003eiOptron Photron 6\" Ritchey-Chrétien Telescope\u003c\/h2\u003e\n\u003cp\u003eThe iOptron® Photron™ Ritchey-Chrétien design telescopes feature low thermal expansion quartz primary and secondary mirrors with ninety-nine percent reflective dielectric coatings. The RC optical design delivers coma, spherical and chromatic aberration free results, perfect for color or monochrome imaging. A fixed position primary mirror eliminates image shift that occurs from focusing with other telescope designs. The iOptron RC6 comes with a 2\" dual-speed Crayford focuser. Three focuser extension rings are provided for a “flex-free” solid extension as a means to take up any unneeded back focus. Its steel tube is equipped with knife edge baffles to diminish contrast reducing stray light, improving the instrument in both visual and imaging uses. A RC6 model comes with a Vixen style dovetail plates.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eComa free, chromatic aberration-free, spherical aberration-free optics\u003c\/li\u003e\n\u003cli\u003e150mm (6\") optical aperture\u003c\/li\u003e\n\u003cli\u003e1370mm focal length\u003c\/li\u003e\n\u003cli\u003ef\/9 focal ratio\u003c\/li\u003e\n\u003cli\u003eFixed primary\u003c\/li\u003e\n\u003cli\u003eLow thermal expansion quartz mirrors\u003c\/li\u003e\n\u003cli\u003eMultiple knife-edge baffle system\u003c\/li\u003e\n\u003cli\u003e2\" dual-speed Crayford focuser\u003c\/li\u003e\n\u003cli\u003eFinder scope base and dovetails bar\u003c\/li\u003e\n\u003cli\u003eOptional finder scope, diagonal and 1.25\" eyepiece\u003c\/li\u003e\n\u003cli\u003eOptional iOptron Electric Focuser (#8451)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable style=\"font-size: 13px; list-style: inside; color: #585858; text-align: left; font-family: 'Lucida Sans Unicode', 'Lucida Grande', sans-serif; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: #eeeeee; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\" cellspacing=\"0\" cellpadding=\"0\" border=\"1\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"color: black; font-size: 13px; list-style: inside;\" width=\"206\" align=\"right\"\u003eOptical Design\u003c\/td\u003e\n\u003ctd style=\"color: black; font-size: 13px; list-style: inside;\" width=\"396\" align=\"center\"\u003eRitchey-Chretien\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"color: black; font-size: 13px; list-style: inside;\" align=\"right\"\u003eClear Aperture\u003c\/td\u003e\n\u003ctd style=\"color: black; font-size: 13px; list-style: inside;\" align=\"center\"\u003e150mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"color: black; font-size: 13px; list-style: inside;\" align=\"right\"\u003eFocal Length\u003c\/td\u003e\n\u003ctd style=\"color: black; font-size: 13px; list-style: inside;\" align=\"center\"\u003e1370mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"color: black; font-size: 13px; list-style: inside;\" align=\"right\"\u003eFocal Ratio\u003c\/td\u003e\n\u003ctd style=\"color: black; font-size: 13px; list-style: inside;\" align=\"center\"\u003ef\/9\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"color: black; font-size: 13px; list-style: inside;\" align=\"right\"\u003eResolving Power\u003c\/td\u003e\n\u003ctd style=\"color: black; font-size: 13px; list-style: inside;\" align=\"center\"\u003e0.76 arc seconds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"color: black; font-size: 13px; list-style: inside;\" align=\"right\"\u003eLimiting Magnitude\u003c\/td\u003e\n\u003ctd style=\"color: black; font-size: 13px; list-style: inside;\" align=\"center\"\u003e13.6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"color: black; font-size: 13px; list-style: inside;\" align=\"right\"\u003eHighest Useful Magnification\u003c\/td\u003e\n\u003ctd style=\"color: black; font-size: 13px; list-style: inside;\" align=\"center\"\u003e180X\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"color: black; font-size: 13px; list-style: inside;\" align=\"right\"\u003eSecondary Mirror Size\u003c\/td\u003e\n\u003ctd style=\"color: black; font-size: 13px; list-style: inside;\" align=\"center\"\u003e67mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"color: black; font-size: 13px; list-style: inside;\" align=\"right\"\u003eFocuser\u003c\/td\u003e\n\u003ctd style=\"color: black; font-size: 13px; list-style: inside;\" align=\"center\"\u003e10:1 Crayford dual-speed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"color: black; font-size: 13px; list-style: inside;\" align=\"right\"\u003eFocuser size\u003c\/td\u003e\n\u003ctd style=\"color: black; font-size: 13px; list-style: inside;\" align=\"center\"\u003e2”\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"color: black; font-size: 13px; list-style: inside;\" align=\"right\"\u003eDovetail Bar\u003c\/td\u003e\n\u003ctd style=\"color: black; font-size: 13px; list-style: inside;\" align=\"center\"\u003eVixen-style\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"color: black; font-size: 13px; list-style: inside;\" align=\"right\"\u003eFinderscope Base\u003c\/td\u003e\n\u003ctd style=\"color: black; font-size: 13px; list-style: inside;\" align=\"center\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"color: black; font-size: 13px; list-style: inside;\" align=\"right\"\u003eFinder scope\u003c\/td\u003e\n\u003ctd style=\"color: black; font-size: 13px; list-style: inside;\" align=\"center\"\u003eOptional\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"color: black; font-size: 13px; list-style: inside;\" align=\"right\"\u003eTube material\u003c\/td\u003e\n\u003ctd style=\"color: black; font-size: 13px; list-style: inside;\" align=\"center\"\u003eSteel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"color: black; font-size: 13px; list-style: inside;\" align=\"right\"\u003eTube Length\u003c\/td\u003e\n\u003ctd style=\"color: black; font-size: 13px; list-style: inside;\" align=\"center\"\u003e19.1”\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"color: black; font-size: 13px; list-style: inside;\" align=\"right\"\u003eTube Weight\u003c\/td\u003e\n\u003ctd style=\"color: black; font-size: 13px; list-style: inside;\" align=\"center\"\u003e12 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"color: black; font-size: 13px; list-style: inside;\" align=\"right\"\u003eOther Accessories\u003c\/td\u003e\n\u003ctd style=\"color: black; font-size: 13px; list-style: inside;\" align=\"center\"\u003e2” to 1.25” compression ring adapter;\u003cbr\u003e1\" long extension tube X2\u003cbr\u003e2\" long extension tube X1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"color: black; font-size: 13px; list-style: inside;\" align=\"right\"\u003eGross Weight\u003c\/td\u003e\n\u003ctd style=\"color: black; font-size: 13px; list-style: inside;\" align=\"center\"\u003e18 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"color: black; font-size: 13px; list-style: inside;\" align=\"right\"\u003eWarranty\u003c\/td\u003e\n\u003ctd style=\"color: black; font-size: 13px; list-style: inside;\" align=\"center\"\u003eOne year limited\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eIn the Box\u003c\/h3\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli\u003eiOptron Photron 6\" Ritchey-Chrétien Telescope\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e2\" dual speed Crayford focuser\u003c\/li\u003e\n\u003cli\u003e2X25mm, 1X 50mm focus extension\u003c\/li\u003e\n\u003cli\u003e1.25\" accessory adapter\u003c\/li\u003e\n\u003cli\u003eVixen dovetail bar\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\u003c\/ul\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\u003c\/ul\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eWarranty \u0026amp; Manuals\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/h3\u003e\n\u003cp data-mce-fragment=\"1\"\u003eiOptron 1-Year Warranty\u003c\/p\u003e","brand":"iOptron","offers":[{"title":"Default Title","offer_id":43125830942949,"sku":"IOP-6111","price":781.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/ioptron-photron-6-ritchey-chretien-telescope-6111-astronomy-plus_8b83eec6-5837-4db1-8087-49b1ea41ef35.png?v=1690487101","url":"https:\/\/istronomyplus.com\/products\/ioptron-photron-6-ritchey-chretien-telescope-6111","provider":"Astronomy Plus – Telescopes \u0026 Astrophotography Canada","version":"1.0","type":"link"}