{"product_id":"ioptron-photron-rc6-6-inch-ritchey-chretien-telescope-ota-6111","title":"iOptron Photron RC6 - 6 inch Ritchey-Chrétien Telescope OTA - 6111","description":"\u003ccenter\u003e\n\u003ch3\u003eiOptron Photron RC6 - 6 inch Ritchey-Chrétien Telescope OTA\u003c\/h3\u003e\n\u003c\/center\u003e\n\u003cp\u003eIntroducing the new iOptron Photron 150 mm (6\") Ritchey-Chretien (RC) Astrograph! iOptron has long been recognized for producing solid, stable, accurate tracking telescope mounts, and now they have added three new RC Astrograph telescopes to their well-known line. This Astrograph is the model 6111, having an aperture of 150 mm (6 in) and a focal ratio of f\/9 for a focal length of 1370 mm.\u003c\/p\u003e\n\u003cp\u003eThe iOptron® Photron Ritchey-Chrétien design telescopes feature low thermal expansion quartz primary and secondary mirrors with ninety-nine percent reflective dietetic coatings. The RC optical design delivers coma, spherical and chromatic aberration free results, perfect for color or monochrome imaging.\u003c\/p\u003e\n\u003cp\u003eA fixed-position primary mirror cleverly eliminates image shift that occurs from focusing with other telescope designs. The iOptron RC6 150 mm Astrograph comes with a 2\" dual-speed linear-bearing 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. This iOptron Photron 150 mm Ritchey-Chretien (RC) RC6 Astrograph model comes with one Vixen style dovetail mounting plate.\u003c\/p\u003e\n\u003ccenter\u003e\n\u003ch3\u003eFeatures:\u003c\/h3\u003e\n\u003c\/center\u003e\n\u003cul\u003e\n\u003cli\u003eRitchey-Chrétien optical design\u003c\/li\u003e\n\u003cli\u003eComa free, chromatic aberration-free, spherical aberration-free optics\u003c\/li\u003e\n\u003cli\u003e150 mm (6\") optical aperture\u003c\/li\u003e\n\u003cli\u003e1370 mm focal length\u003c\/li\u003e\n\u003cli\u003ef\/9 focal ratio\u003c\/li\u003e\n\u003cli\u003eFixed primary mirror\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 dovetail bar\u003c\/li\u003e\n\u003cli\u003eOptional finder scope\u003c\/li\u003e\n\u003cli\u003eOptional diagonal\u003c\/li\u003e\n\u003cli\u003eOptional 1.25\" eyepiece\u003c\/li\u003e\n\u003cli\u003eOptional iOptron Electric Focuser\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e Finderscope, star diagonal, and eyepiece shown in photo are for illustration purposes only, the finderscope, star diagonal, and eyepiece are NOT included with this OTA product.\u003c\/p\u003e\n\u003ccenter\u003e\n\u003ch3\u003eWhat's In The Box:\u003c\/h3\u003e\n\u003c\/center\u003e\n\u003cul\u003e\n\u003cli\u003e#6111 6\" RC OTA only w\/2\" dual speed Crayford focuser\u003c\/li\u003e\n\u003cli\u003e2X25 mm, 1 X 50 mm focus extention\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\u003ccenter\u003e\n\u003ch3\u003eSpecifications:\u003c\/h3\u003e\n\u003c\/center\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Design:\u003c\/td\u003e\n\u003ctd\u003eRitchey-Chretien\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClear Aperture:\u003c\/td\u003e\n\u003ctd\u003e150 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Length:\u003c\/td\u003e\n\u003ctd\u003e1370 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Ratio:\u003c\/td\u003e\n\u003ctd\u003ef\/9\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolving Power:\u003c\/td\u003e\n\u003ctd\u003e0.76 arcseconds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLimiting Magnitude:\u003c\/td\u003e\n\u003ctd\u003e13.6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHighest Useful Magnification:\u003c\/td\u003e\n\u003ctd\u003e180X\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSecondary Mirror Size:\u003c\/td\u003e\n\u003ctd\u003e67 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocuser:\u003c\/td\u003e\n\u003ctd\u003e10:1 Crayford dual-speed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocuser size:\u003c\/td\u003e\n\u003ctd\u003e2”\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDovetail Bar:\u003c\/td\u003e\n\u003ctd\u003eVixen-style\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinderscope Base:\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinder scope:\u003c\/td\u003e\n\u003ctd\u003eOptional\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTube material:\u003c\/td\u003e\n\u003ctd\u003eSteel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTube Length:\u003c\/td\u003e\n\u003ctd\u003e19.1”\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTube Weight:\u003c\/td\u003e\n\u003ctd\u003e12 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOther Accessories:\u003c\/td\u003e\n\u003ctd\u003e2” to 1.25” compression ring adapter; 1\" long extension tube X2; 2\" long extension tube X1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGross Weight:\u003c\/td\u003e\n\u003ctd\u003e18 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty:\u003c\/td\u003e\n\u003ctd\u003eOne year limited\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"iOptron","offers":[{"title":"Default Title","offer_id":1491317620766,"sku":"IOP-6111","price":502.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0851\/2766\/products\/6111_Photron_150.png?v=1776458991","url":"https:\/\/khanscope.com\/en-fr\/products\/ioptron-photron-rc6-6-inch-ritchey-chretien-telescope-ota-6111","provider":"Khan Scope Centre","version":"1.0","type":"link"}