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Catadioptric Telescopes

8 Items
iOptron Photron 200 RC Telescope OTA

iOptron 8" Photron RC Telescope OTA - 6112

SKU: IOP-6112
  • Optical Design: Ritchey-Chretien
  • Telescope Aperture: 200mm (7.87")
  • Focal Ratio: f/8
  • Telescope Mount Type: No Mount - OTA Only
  • Type of Electronics: OTA Only - No Electronics
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$895.00
 
iOptron 250 mm Photron Ritchey-Chretien Telescope

iOptron Photron 250 RC Telescope Package with CEM60 Mount & Tri-Pier - 12250

SKU: IOP-12250
  • Optical Design: Ritchey-Chretien
  • Telescope Aperture: 250mm (9.84")
  • Focal Ratio: f/8
  • Telescope Mount Type: Equatorial
  • Type of Electronics: Computerized GoTo
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$5,198.00
 
iOptron Photron RC10 Optical Tube Assembly

iOptron 10" Photron RC Telescope OTA - 6113

SKU: IOP-6113
  • Optical Design: Ritchey-Chretien
  • Telescope Aperture: 250mm (9.84")
  • Focal Ratio: f/8
  • Telescope Mount Type: No Mount - OTA Only
  • Type of Electronics: OTA Only - No Electronics
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$2,495.00
 
iOptron Photron 200 Ritchey-Chretien Telescope

iOptron Photron 200 RC Telescope Package with iEQ45 Pro Mount & 2" Tripod - 12200

SKU: IOP-12200
  • Optical Design: Ritchey-Chretien
  • Telescope Aperture: 200mm (7.87")
  • Focal Ratio: f/8
  • Telescope Mount Type: Equatorial
  • Type of Electronics: Manual Mount - No Electronics
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$2,598.00
 

iOptron 10" Photron Truss Tube Ritchey-Chretien Telescope - 6114

SKU: IOP-6114
  • 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
 
iOptron 12" Photron Truss Tube Ritchey-Chretien Telescope

iOptron 12" Photron Truss Tube Ritchey-Chretien Telescope - 6115

SKU: IOP-6115
  • Optical Design: Ritchey-Chretien
  • Telescope Aperture: 304mm (11.97")
  • 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
 
iOptron 14" Photron Truss Tube Ritchey-Chretien Telescope

iOptron 14" Photron Truss Tube Ritchey-Chretien Telescope - 6116

SKU: IOP-6116
  • Optical Design: Ritchey-Chretien
  • Telescope Aperture: 355mm (13.98")
  • 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
 
iOptron 16" Photron Truss Tube Ritchey-Chretien Telescope

iOptron 16" Photron Truss Tube Ritchey-Chretien Telescope - 6117

SKU: IOP-6117
  • 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
 

The LX600 Catadioptric telescope design uses a combination of mirrors and lenses to gather light and form a sharp image. There is a wide range of popular telescopes for amateur astronomers, such as Schmidt-Cassegrain and Maksutov-Cassegrain telescopes, that are of the catadioptric design. There are also catadioptric telescopes for sale that are designed primarily for astrophotography or imaging, like the Ritchey-Chretien (RC), Meade ACF, and Celestron EdgeHD.

The Schmidt-Cassegrain Telescope, or SCT, is the most popular design in the broader catadioptric telescope line-up. The Schmidt-Cassegrain has a folded optical system consisting of a primary mirror and a corrector plate with the secondary mirror right in the center. This design allows the telescope tube to be much more compact than a Newtonian reflector or a Refractor. The most popular Schmidt-Cassegrain has a large 8" diameter mirror and an optical tube that is about 18" long - a perfect combination of good light-gathering and easy-to-carry portability.

The Maksutov-Cassegrain, or Mak-Cass, catadioptric telescope looks very much like an SCT but has a longer focal length due to the way the light travels inside the tube. The Maksutov-Cassegrain really shines when used for terrestrial or astronomical viewing, especially when turned to the Moon or planets, but it isn't the best choice for deep-sky astrophotography due to its long focal length when compared other catadioptric designs.

Catadioptrics optimized for imaging are rising in popularity as more amateur astronomers fall under the spell of astrophotography. These telescopes have a wide, flat field that works nicely with today's larger format DSLR and dedicated astronomy cameras. While many catadioptric telescopes for sale can be used for both visual astronomy and imaging, amateur astronomers who prefer visual observations or have a camera with a smaller sensor don't necessarily require the edge-to-edge flatness that a larger sensor does.

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