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GSO Ritchey-Chretien 8” OTA

  • 1,20000
  • Save $ 195

GSO is few of the professional manufactures for Ritchey-Chretien telescope. They manufacture mirrors, parts and astronomical telescopes more than 18 years.  They ODM and ODM for Meade, Orion and others brands on current market.

We provide the telescope and whole maintenance service directly from GSO. Unlike other sales, we could provide our customers to replace any part, even if the expensive mirror with very low cost to make sure your telescope in long life usage.


Primary mirror diameter: 203 mm

Focal length: 1600 mm

Focal ratio: f/8

Focuser: 2''dual-speed high precise bearing track for heavy payload

Tube-mount assembly system: dovetail plate

Optical tube material: Carbon

Our Warranties and Disclaimers: Exchangeable for mechanical and Optical flaws in manufacturing.

Total weight is 25 lbs in 1 box with Free Shipping


All mirrors (primary & secondary) were made from quartz glasses and covered with 99% reflection power dielectric coating. Because of the very low thermal expansion in quartz glass, the mirrors could reach to the accuracy of hyperboloid surface much better than 1/12 wavelength.

 Ritchey-Chretien telescope is a powerful in astrograph for flat, sharp and large of imaging field.  Generally, Ritchey-Chretien telescope can cover more than 8cm of imaging field and be the popular telescope in most professional observatories.

 We provide many accessories for Ritchey-Chretien telescope, such as 0.65x focal reducer and imaging flatter which may be used for visual observations and photography of deep-sky.

You can find many brands of Ritchey-Chretien telescope with the same features and appearance. They are all made from GSO. Our technical and maintenance support are directly from original manufacture.  We wish you purchase the high quality telescope and professional service as well.