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The Ritchey-Chrétien optical design is a specialized Cassegrain telescope designed to eliminate coma, thus providing a relatively large field of view as compared to a more conventional configuration. An RC has a hyperbolic primary and a hyperbolic secondary mirror. Since Ritchey-Chrétien optics are two mirror optical systems, they have no Spectral Dispersion or Chromatic Aberration. Furthermore, the Ritchey-Chrétien does not require refractive optics allowing for a much wider spectral range from UV to Long Wave Infrared making the RC a truly versatile design.


  • Made in India RC Telescope

  • Coma free, chromatic aberration-free, spherical aberration-free optics

  • 4" & 10" optical aperture

  • 400 & 1600 mm focal length

  • f/4 & f/8 focal ratio

  • Low thermal expansion aluminium mirrors

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