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GSO

9 Items

GSO 12" f/8 Ritchey-Chretien Optical Tube - Truss Tube OTA - 12RCT

SKU: GSO-12RCT
  • Optical Design: Ritchey-Chretien
  • Telescope Aperture: 305mm (12")
  • Focal Ratio: f/8
  • Telescope Mount Type: No Mount - OTA Only
  • Type of Electronics: OTA Only - No Electronics
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$4,295.00
 
GSO 10" Truss Tube RC

GSO 10" f/8 Ritchey-Chretien Optical Tube - Truss Tube OTA - 10RCT

SKU: GSO-10RCT
  • Optical Design: Ritchey-Chretien
  • Telescope Aperture: 254mm (10")
  • Focal Ratio: f/8
  • Telescope Mount Type: No Mount - OTA Only
  • Type of Electronics: OTA Only - No Electronics
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$2,995.00
 
GSO 12" f/8 RC from Side

GSO 14" f/8 Ritchey-Chretien Optical Tube - Truss Tube OTA - 14RCT

SKU: GSO-14RCT
  • Optical Design: Ritchey-Chretien
  • Telescope Aperture: 355.6mm (14")
  • Focal Ratio: f/8
  • Telescope Mount Type: No Mount - OTA Only
  • Type of Electronics: OTA Only - No Electronics
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$5,795.00
 
GSO 12" f/8 RC

GSO 16" f/8 Ritchey-Chretien Optical Tube - Truss Tube OTA - 16RCT

SKU: GSO-16RCT
  • Optical Design: Ritchey-Chretien
  • Telescope Aperture: 406mm (16")
  • Focal Ratio: f/8
  • Telescope Mount Type: No Mount - OTA Only
  • Type of Electronics: OTA Only - No Electronics
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$6,995.00
 
GSO 8" f/8 RC Ritchey-Chretien OTA with Dual Dovetails

GSO 8" f/8 Ritchey-Chretien Optical Tube - Carbon Fiber OTA - 8RC

SKU: GSO-8RC
  • Optical Design: Ritchey-Chretien
  • Telescope Aperture: 203.2mm (8")
  • Focal Ratio: f/8
  • Telescope Mount Type: No Mount - OTA Only
  • Type of Electronics: OTA Only - No Electronics
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$1,395.00
 

GSO 6" f/9 Ritchey-Chretien Optical Tube - Steel OTA - 6RC

SKU: GSO-6RC
  • Optical Design: Ritchey-Chretien
  • Telescope Aperture: 152.4mm (6")
  • Focal Ratio: f/9
  • Telescope Mount Type: No Mount - OTA Only
  • Type of Electronics: OTA Only - No Electronics
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$399.00
 
GSO 10" f/4 Truss Imaging Newtonian

GSO 10" f/4 Imaging Newtonian - Truss Tube OTA - 10F4TN

SKU: GSO-10F4TN
  • Optical Design: Newtonian Reflector
  • Telescope Aperture: 254mm (10")
  • Focal Ratio: f/4
  • Telescope Mount Type: No Mount - OTA Only
  • Type of Electronics: OTA Only - No Electronics
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$1,795.00 $1,705.25
 
GSO 12" f/4 Truss Tube Imaging Newtonian

GSO 12" f/4 Imaging Newtonian - Truss Tube OTA - 12F4TN

SKU: GSO-12F4TN
  • Optical Design: Newtonian Reflector
  • Telescope Aperture: 305mm (12")
  • Focal Ratio: f/4
  • Telescope Mount Type: No Mount - OTA Only
  • Type of Electronics: OTA Only - No Electronics
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$2,195.00 $2,085.00
 
GSO 8" f/8 Ritchey-Chretien - Steel OTA

GSO 8" f/8 Ritchey-Chretien Optical Tube - Steel OTA - 8RCS

SKU: GSO-8RCS
  • Optical Design: Ritchey-Chretien
  • Telescope Aperture: 203.2mm (8")
  • Focal Ratio: f/8
  • Telescope Mount Type: No Mount - OTA Only
  • Type of Electronics: OTA Only - No Electronics
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$899.00 $809.00
 

Guan Seng Optical specializes in Ritchey-Chretiens and imaging Newtonians. Their scopes are a great choice for imaging everything from the Moon to distant, deep-space nebulae and star clusters. These imaging telescopes used to be out of reach for amateur astrophotographers because of their high price tag. However, GSO makes imaging telescopes affordable for everyone!


Ritchey-Chretien (RC) telescopes are being used in some of the world’s biggest and best observatories due to their color-free, coma-free, spherical aberration-free optics. Now GSO has made RC telescopes affordable for everyone, so even the backyard astrophotographer can enjoy capturing sharp, beautiful images.GSO’s RC telescopes come in a full range of aperture sizes. From the portable 6” to a powerful 16”, you are sure to find the size perfect for your astro-imaging pursuits. They also come in several different tube styles, such as carbon fiber, truss tube, and steel.


GSO also designs quality imaging Newtonians. Like ordinary Newtonians, imaging Newtonians are reflector telescopes that use mirrors to capture light. However, imaging Newtonians are optimized for astrophotography. That does not mean you cannot use them for visual observations, but they will not yield as great results as used for imaging. GSO’s imaging Newtonian features a truss tube design that is lightweight and easy to transport. Each mirror has aluminum and quartz coatings for optimal reflectivity and protection.

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