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Catadioptric Telescopes

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Celestron Astro Fi 102 Mak-Cass Telescope

Celestron 102 mm AstroFi Maksutov-Cassegrain Telescope - 22202

SKU: CEL-22202
  • Optical Design: Maksutov-Cassegrain
  • Telescope Aperture: 102mm (4.02")
  • Focal Ratio: f/13
  • Telescope Mount Type: Alt-Azimuth
  • Type of Electronics: Computerized GoTo
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$449.95
Explore Scientific FirstLight 127 mm Mak-Cass Telescope

Explore Scientific FirstLight 127 mm White Tube Maksutov-Cassegrain w/Twilight I Mount - FL-MC1271900MAZ01

SKU: EXS-FL-MC1271900MAZ01
  • Optical Design: Maksutov-Cassegrain
  • Telescope Aperture: 127mm (5")
  • Focal Ratio: f/15
  • Telescope Mount Type: Alt-Azimuth
  • Type of Electronics: Manual Mount - No Electronics
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$749.99
Explore Scientific FirstLight MAK152 Telescope

Explore Scientific FirstLight 152 mm White Tube Maksutov-Cassegrain w/Twilight I Mount - FL-MC1521900MAZ01

SKU: EXS-FL-MC1521900MAZ01
  • Optical Design: Maksutov-Cassegrain
  • Telescope Aperture: 152mm (5.98")
  • Focal Ratio: f/12.5
  • Telescope Mount Type: Alt-Azimuth
  • Type of Electronics: Manual Mount - No Electronics
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$999.99

Meade ETX 125 Observer Computerized Telescope with Free Barlow & Moon Filter - 205005

SKU: MEA-205005-FG
  • Optical Design: Maksutov-Cassegrain
  • Telescope Aperture: 125mm (4.92")
  • Focal Ratio: f/15
  • Telescope Mount Type: Alt-Azimuth
  • Type of Electronics: Computerized GoTo
  • Includes Free Moon Filter and 2X Barlow Lens!
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$779.00
Celestron 8" SCT on CGX Computerized Equatorial Mount

Celestron CGX 800 SCT Computerized Telescope - 12050

SKU: CEL-12050
  • Optical Design: Schmidt-Cassegrain
  • Telescope Aperture: 203.2mm (8")
  • Focal Ratio: f/10
  • Telescope Mount Type: Equatorial
  • Type of Electronics: Computerized GoTo
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$3,199.00
Celestron 9.25" SCT on CGX Computerized Equatorial Mount

Celestron CGX 925 SCT Computerized Telescope - 12051

SKU: CEL-12051
  • Optical Design: Schmidt-Cassegrain
  • Telescope Aperture: 235mm (9.25")
  • Focal Ratio: f/10
  • Telescope Mount Type: Equatorial
  • Type of Electronics: Computerized GoTo
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$3,499.00
Celestron 11" SCT on CGX Computerized Equatorial Mount

Celestron CGX 1100 SCT Computerized Telescope - 12052

SKU: CEL-12052
  • Optical Design: Schmidt-Cassegrain
  • Telescope Aperture: 279.4mm (11")
  • Focal Ratio: f/10
  • Telescope Mount Type: Equatorial
  • Type of Electronics: Computerized GoTo
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$4,399.00

Celestron CGX 800 EdgeHD Computerized Telescope - 12055

SKU: CEL-12055
  • Optical Design: Celestron EdgeHD
  • Telescope Aperture: 203.2mm (8")
  • Focal Ratio: f/10
  • Telescope Mount Type: Equatorial
  • Type of Electronics: Computerized GoTo
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$3,499.00

Celestron CGX 925 EdgeHD Computerized Telescope - 12056

SKU: CEL-12056
  • Optical Design: Celestron EdgeHD
  • Telescope Aperture: 235mm (9.25")
  • Focal Ratio: f/10
  • Telescope Mount Type: Equatorial
  • Type of Electronics: Computerized GoTo
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$4,399.00
Celestron 11" EdgeHD SCT on CGX Computerized Equatorial Mount

Celestron CGX 1100 EdgeHD Computerized Telescope - 12057

SKU: CEL-12057
  • Optical Design: Celestron EdgeHD
  • Telescope Aperture: 279.4mm (11")
  • Focal Ratio: f/10
  • Telescope Mount Type: Equatorial
  • Type of Electronics: Computerized GoTo
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$5,399.00
Celestron 8" SCT on CGEM II Computerized Equatorial Mount

Celestron CGEM II 800 SCT - 8" Schmidt-Cassegrain Telescope on CGEM II Computerized Equatorial Mount - 12010

SKU: CEL-12010
  • Optical Design: Schmidt-Cassegrain
  • Telescope Aperture: 203.2mm (8")
  • Focal Ratio: f/10
  • Telescope Mount Type: Equatorial
  • Type of Electronics: Computerized GoTo
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$2,499.00
Celestron 9.25" SCT on CGEM II Computerized Equatorial Mount

Celestron CGEM II 925 SCT - 9.25" Schmidt-Cassegrain Telescope on CGEM II Computerized Equatorial Mount - 12011

SKU: CEL-12011
  • Optical Design: Schmidt-Cassegrain
  • Telescope Aperture: 235mm (9.25")
  • Focal Ratio: f/10
  • Telescope Mount Type: Equatorial
  • Type of Electronics: Computerized GoTo
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$2,799.00
Celestron 11" SCT on CGEM II Computerized Equatorial Mount

Celestron CGEM II 1100 SCT - 11" Schmidt-Cassegrain Telescope on CGEM II Computerized Equatorial Mount - 12012

SKU: CEL-12012
  • Optical Design: Schmidt-Cassegrain
  • Telescope Aperture: 279.4mm (11")
  • Focal Ratio: f/10
  • Telescope Mount Type: Equatorial
  • Type of Electronics: Computerized GoTo
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$3,799.00
Celestron 8" EdgeHD SCT on CGEM II Computerized Equatorial Mount

Celestron CGEM II 800 EdgeHD - 8" EdgeHD Telescope on Computerized Equatorial Mount - 12017

SKU: CEL-12017
  • Optical Design: Celestron EdgeHD
  • Telescope Aperture: 203.2mm (8")
  • Focal Ratio: f/10
  • Telescope Mount Type: Equatorial
  • Type of Electronics: Computerized GoTo
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$2,799.00
Celestron 11" EdgeHD SCT on CGEM II Computerized Equatorial Mount

Celestron CGEM II 1100 EdgeHD - 11" EdgeHD Telescope on CGEM II Computerized Equatorial Mount - 12019

SKU: CEL-12019
  • Optical Design: Celestron EdgeHD
  • Telescope Aperture: 279.4mm (11")
  • Focal Ratio: f/10
  • Telescope Mount Type: Equatorial
  • Type of Electronics: Computerized GoTo
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$4,699.00
Celestron 9.25" EdgeHD SCT on CGEM II Computerized Equatorial Mount

Celestron CGEM II 925 EdgeHD - 9.25" EdgeHD Telescope on CGEM II Computerized Equatorial Mount - 12018

SKU: CEL-12018
  • Optical Design: Celestron EdgeHD
  • Telescope Aperture: 235mm (9.25")
  • Focal Ratio: f/10
  • Telescope Mount Type: Equatorial
  • Type of Electronics: Computerized GoTo
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$3,799.00
Meade 90 mm StarNavigator NG Mak-Cass Telescope

Meade StarNavigator NG 90 Maksutov-Cassegrain - 218005

SKU: MEA-218005
  • Optical Design: Maksutov-Cassegrain
  • Telescope Aperture: 90mm (3.54")
  • Focal Ratio: f/13.8
  • Telescope Mount Type: Alt-Azimuth
  • Type of Electronics: Computerized GoTo
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$422.95
Meade 125 mm StarNavigator NG Mak-Cass Telescope

Meade StarNavigator NG 125 Maksutov-Cassegrain - 218006

SKU: MEA-218006
  • Optical Design: Maksutov-Cassegrain
  • Telescope Aperture: 127mm (5")
  • Focal Ratio: f/14.4
  • Telescope Mount Type: Alt-Azimuth
  • Type of Electronics: Computerized GoTo
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$599.95
Celestron 925 SCT on CGX-L Equatorial Mount

Celestron CGX-L 925 SCT Computerized Telescope - 12070

SKU: CEL-12070
  • Optical Design: Schmidt-Cassegrain
  • Telescope Aperture: 235mm (9.25")
  • Focal Ratio: f/10
  • Telescope Mount Type: Equatorial
  • Type of Electronics: Computerized GoTo
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$4,899.00
Celestron 1100 SCT on CGX-L Mount

Celestron CGX-L 1100 SCT Computerized Telescope - 12071

SKU: CEL-12071
  • Optical Design: Schmidt-Cassegrain
  • Telescope Aperture: 279.4mm (11")
  • Focal Ratio: f/10
  • Telescope Mount Type: Equatorial
  • Type of Electronics: Computerized GoTo
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$5,799.00
Celestron 1400 SCT on CGX-L Mount

Celestron CGX-L 1400 Fastar SCT Computerized Telescope - 12072

SKU: CEL-12072
  • Optical Design: Schmidt-Cassegrain
  • Telescope Aperture: 355.6mm (14")
  • Focal Ratio: f/10
  • Telescope Mount Type: Equatorial
  • Type of Electronics: Computerized GoTo
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$8,099.00
Celestron 925 EdgeHD on CGX-L Mount

Celestron CGX-L 925 EdgeHD Computerized Telescope - 12075

SKU: CEL-12075
  • Optical Design: Celestron EdgeHD
  • Telescope Aperture: 235mm (9.25")
  • Focal Ratio: f/10
  • Telescope Mount Type: Equatorial
  • Type of Electronics: Computerized GoTo
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$5,799.00
Celestron 1400 EdgeHD Telescope on CGX-L Equatorial Mount

Celestron CGX-L 1100 EdgeHD Computerized Telescope - 12076

SKU: CEL-12076
  • Optical Design: Celestron EdgeHD
  • Telescope Aperture: 279.4mm (11")
  • Focal Ratio: f/10
  • Telescope Mount Type: Equatorial
  • Type of Electronics: Computerized GoTo
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$6,799.00
Celestron 1400 EdgeHD on CGX-L Mount

Celestron CGX-L 1400 EdgeHD Computerized Telescope - 12077

SKU: CEL-12077
  • Optical Design: Celestron EdgeHD
  • Telescope Aperture: 356mm (14.02")
  • Focal Ratio: f/11
  • Telescope Mount Type: Equatorial
  • Type of Electronics: Computerized GoTo
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$9,199.00
Meade ETX 90 Observer Telescope Bundle

Meade ETX 90 Observer Telescope Bundle - 205004-BUN1

SKU: MEA-205004-BUN1
  • Optical Design: Maksutov-Cassegrain
  • Telescope Aperture: 90mm (3.54")
  • Focal Ratio: f/13.8
  • Telescope Mount Type: Alt-Azimuth
  • Type of Electronics: Computerized GoTo
  • Extra Included Accessories: 13-Piece Filter & Eyepiece Kit, 7AH Power Tank, and Meade DC Power Cable
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$759.95

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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