WebBuy iOptron Photron 200mm f/8 Ritchey-Chrétien Catadioptric Telescope (OTA Only) featuring 200mm Ritchey-Chrétien … WebThe iOptron® Photron™ Ritchey-Cretien design telescopes, feature low thermal …
iOptron Photron RC6 6-inch Ritchey-Chrétien review
WebThey look sexy - a cheap price tag for the aperture, light-weight for the focal length, cool rainbow-colored star spikes, awesome resolution, and not too terribly slow optics at f/8 (can also be reduced for speed). What's not to like? Shoot, iOptron claims "coma free, chromatic aberration-free, spherical aberration-free optics". Sounds like a no-brainer for those … Web17 jul. 2015 · Orion 10-inch f/8 Ritchey-Chrétien astrograph telescope. Price: £3267.00 … dynamic supply ontario ca
iOptron Photon RC8 8" Ritchey-Chretien OTA - Rother Valley …
http://www.medicopes.com/products/iOptron-%252d-8%22-Ritchey%252dChr%C3%A9tien-Telescope-with-iEQ45-Equatorial-Mount.html Web200mm f/8 true Ritchey Chretien provides excellent light grasp and resolution. The focal length of 1625mm results in suitable image scale for a multitude of deep sky targets. Bintel’s RCA series feature precision figured hyperbolic primary and secondary mirrors. As it contains no refractive optics there is no chromatic aberration at all – none. WebRitchey-Chretien: Clear Aperture: 200mm: Focal Length: 1624mm: Focal Ratio: f/8: … cs 102 ohlone