Ritchey-Cretien
By modifying the Cassegrain design (2 hyperbolic mirrors), the coma can be eliminated in the RC telescope. RC telescopes can be used universally with a moderate aperture ratio. They are very popular. With correctors, they can also be used as astrographs.
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GSO Ritchey-Chrétien 406/3250 Truss Tube OTA
Very compact and light Ritchey Crétien Travelling Astrograph with 6" aperture.
Powerful and lightweight 8" Ritchey Crétien with Quarz Optics and Carbon Fibre Tube.
Powerful and lightweight 8" Ritchey Crétien with Quarz Optics.
Powerful 10" Ritchey Crétien with Quarz Optics and Carbon Fibre Tube.
Powerful 12" Ritchey Chrétien with Quarz Optics and Carbon Fibre Tube.
The TS 12" f/8 Ritchey-Chrétien Astrograph and the massive Skywatcher EQ8 Goto Mount is a dream telescope for astrophotography.
High quality 12" Ritchey Chretien by TS with Carbon Fibre Truss Tube.
High quality 14" Ritchey Chretien by TS with Carbon Fibre Truss Tube.
High quality 16" Ritchey Chretien by TS with Carbon Fibre Truss Tube.
A really affordable RC Telescope with premium features for amateur astronomer who is into serious deep space imaging.
The 10 "Ritchey-Chretien is the ideal still transportable telescope for astrophotography and also well suited for visual observation.