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Catadioptric Telescopes

Items 51 - 75 of 149

Celestron C14AF-XLT - 14" Aluminum SCT Fastar-Compatible Optical Tube with CGE Dovetail - 91038-XLT

SKU: CEL-91038-XLT
  • Optical Design: Schmidt-Cassegrain
  • Telescope Aperture: 355.6mm (14")
  • Focal Ratio: f/10
  • Telescope Mount Type: No Mount - OTA Only
  • Type of Electronics: OTA Only - No Electronics
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$4,697.95

Celestron EdgeHD 925 OTA - 9.25" f/10 HD Aplanatic SCT Optical Tube Assembly - CGE Dovetail - 91040-XLT

SKU: CEL-91040-XLT
  • Optical Design: Celestron EdgeHD
  • Telescope Aperture: 235mm (9.25")
  • Focal Ratio: f/10
  • Telescope Mount Type: No Mount - OTA Only
  • Type of Electronics: OTA Only - No Electronics
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$2,499.00

Celestron EdgeHD 11 OTA - 11" f/10 Aplanatic SCT OTA - CGE Dovetail - 91050-XLT

SKU: CEL-91050-XLT
  • Optical Design: Celestron EdgeHD
  • Telescope Aperture: 279.4mm (11")
  • Focal Ratio: f/10
  • Telescope Mount Type: No Mount - OTA Only
  • Type of Electronics: OTA Only - No Electronics
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$3,699.00

Celestron EdgeHD 14 OTA - 14" f/11 Aplanatic SCT OTA - CGE Dovetail - 91060-XLT

SKU: CEL-91060-XLT
  • Optical Design: Celestron EdgeHD
  • Telescope Aperture: 356mm (14.02")
  • Focal Ratio: f/10
  • Telescope Mount Type: No Mount - OTA Only
  • Type of Electronics: OTA Only - No Electronics
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$6,299.00

Celestron NexStar Evolution 6 Telescope Bundle - 12090-BUN1

SKU: CEL-12090-BUN1
  • Optical Design: Schmidt-Cassegrain
  • Telescope Aperture: 150mm (5.9")
  • Focal Ratio: f/10
  • Telescope Mount Type: Alt-Azimuth
  • Type of Electronics: Computerized GoTo
  • Extra Included Accessories: 13-Piece Filter & Eyepiece Kit and Celestron Flexible Dew Shield.
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$1,699.95

Celestron NexStar Evolution 8 Telescope Bundle - 12091-BUN1

SKU: CEL-12091-BUN1
  • Optical Design: Schmidt-Cassegrain
  • Telescope Aperture: 203.2mm (8")
  • Focal Ratio: f/10
  • Telescope Mount Type: Alt-Azimuth
  • Type of Electronics: Computerized GoTo
  • Includes 13-piece Eyepiece & Filter Kit with Case and Dew Shield!
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$2,099.95
Celestron NexStar Evolution 9.25 Telescope Bundle

Celestron NexStar Evolution 9.25 Telescope Bundle - 12092-BUN1

SKU: CEL-12092-BUN1
  • Optical Design: Schmidt-Cassegrain
  • Telescope Aperture: 235mm (9.25")
  • Focal Ratio: f/10
  • Telescope Mount Type: Alt-Azimuth
  • Type of Electronics: Computerized GoTo
  • Extra Included Accessories: 13-Piece Filter & Eyepiece Kit and Dew Shield!
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$2,599.95
Sky-Watcher 90 mm Skymax Maksutov-Cassegrain OTA

Skywatcher Skymax 90 mm Maksutov-Cassegrain Telescope OTA - S11500

SKU: SKY-S11500
  • Optical Design: Maksutov-Cassegrain
  • Telescope Aperture: 90mm (3.54")
  • Focal Ratio: f/13.8
  • Telescope Mount Type: No Mount - OTA Only
  • Type of Electronics: OTA Only - No Electronics
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$235.00
Sky-Watcher 102 mm Skymax Maksutov-Cassegrain Telescope OTA

Skywatcher Skymax 102 mm Maksutov-Cassegrain Telescope OTA - S11510

SKU: SKY-S11510
  • Optical Design: Maksutov-Cassegrain
  • Telescope Aperture: 102mm (4.02")
  • Focal Ratio: f/12.7
  • Telescope Mount Type: No Mount - OTA Only
  • Type of Electronics: OTA Only - No Electronics
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$280.00
Sky-Watcher 127 mm Skymax Mak-Cass Telescope OTA

Skywatcher Skymax 127 mm Maksutov-Cassegrain Telescope OTA - S11520

SKU: SKY-S11520
  • Optical Design: Maksutov-Cassegrain
  • Telescope Aperture: 127mm (5")
  • Focal Ratio: f/12
  • Telescope Mount Type: No Mount - OTA Only
  • Type of Electronics: OTA Only - No Electronics
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$460.00
Sky-Watcher 150 mm Skymax Maksutov-Cassegrain Telescope OTA

Skywatcher Skymax 150 mm Maksutov-Cassegrain Telescope OTA - S11530

SKU: SKY-S11530
  • Optical Design: Maksutov-Cassegrain
  • Telescope Aperture: 150mm (5.9")
  • Focal Ratio: f/12
  • Telescope Mount Type: No Mount - OTA Only
  • Type of Electronics: OTA Only - No Electronics
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$795.00
Sky-Watcher 180 mm Skymax Maksutov-Cassegrain Telescope OTA

Skywatcher Skymax 180 mm Maksutov-Cassegrain Telescope OTA - S11540

SKU: SKY-S11540
  • Optical Design: Maksutov-Cassegrain
  • Telescope Aperture: 180mm (7.09")
  • Focal Ratio: f/15
  • Telescope Mount Type: No Mount - OTA Only
  • Type of Electronics: OTA Only - No Electronics
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$1,275.00

Celestron NexStar 4SE Computerized Telescope Essential Bundle - 11049-BUN1

SKU: CEL-11049-BUN1
  • Optical Design: Maksutov-Cassegrain
  • Telescope Aperture: 102mm (4.02")
  • Focal Ratio: f/13
  • Telescope Mount Type: Dual (Alt-Az & Equatorial)
  • Type of Electronics: Computerized GoTo
  • This bundle includes the NexStar 4SE, a 13-piece Eyepiece and Filter Kit with Case, an AC Adapter and a DC Power Supply!
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$709.95

Celestron 6" NexStar Evolution Computerized Telescope - 12090

SKU: CEL-12090
  • Optical Design: Schmidt-Cassegrain
  • Telescope Aperture: 150mm (5.9")
  • Focal Ratio: f/10
  • Telescope Mount Type: Alt-Azimuth
  • Type of Electronics: Computerized GoTo
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$1,399.00
Celestron 8" NexStar Evolution Computerized Telescope -- 12091

Celestron 8" NexStar Evolution Computerized Telescope - 12091

SKU: CEL-12091
  • Optical Design: Schmidt-Cassegrain
  • Telescope Aperture: 203.2mm (8")
  • Focal Ratio: f/10
  • Telescope Mount Type: Alt-Azimuth
  • Type of Electronics: Computerized GoTo
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$1,799.00
Celestron 9.25" NexStar Evolution Computerized Telescope - 12092

Celestron 9.25" NexStar Evolution Computerized Telescope - 12092

SKU: CEL-12092
  • Optical Design: Schmidt-Cassegrain
  • Telescope Aperture: 235mm (9.25")
  • Focal Ratio: f/10
  • Telescope Mount Type: Alt-Azimuth
  • Type of Electronics: Computerized GoTo
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$2,349.00

Celestron CPC 1100 Telescope Bundle - 11075-BUN1

SKU: CEL-11075-BUN1
  • Optical Design: Schmidt-Cassegrain
  • Telescope Aperture: 279.4mm (11")
  • Focal Ratio: f/10
  • Telescope Mount Type: Alt-Azimuth
  • Type of Electronics: Computerized GoTo
  • Extra Included Accessories: Celestron 2" Accessory Kit with Eyepieces, Diagonal, Barlow and Filters, 7AH Power Tank and AC Adapter!
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$3,349.95

Celestron CPC 800 Telescope Bundle - 11073-BUN1

SKU: CEL-11073-BUN1
  • Optical Design: Schmidt-Cassegrain
  • Telescope Aperture: 203.2mm (8")
  • Focal Ratio: f/10
  • Telescope Mount Type: Alt-Azimuth
  • Type of Electronics: Computerized GoTo
  • Extra Included Accessories: Celestron 2" Accessory Kit with Diagonal, Eyepiece & Filters, Celestron 7A Power Tank and AC Adapter!
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$2,349.95
Meade 8" LX90 Telescope Bundle

Meade 8" LX90 Telescope Bundle - 0810-90-03-BUN1

SKU: MEA-0810-90-03-BUN1
  • Optical Design: Meade ACF
  • Telescope Aperture: 203.2mm (8")
  • Focal Ratio: f/10
  • Telescope Mount Type: Alt-Azimuth
  • Type of Electronics: Computerized GoTo
  • Extra Free Accessories: 13-Piece Eyepiece & Filter Kit with Case, DC Adapter & 7AH Power Tank
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$2,179.95
Meade ETX 90 with Free High Point Lunar & Planetary Filter Set  and 2X Barlow Lens

Meade ETX 90 Observer Computerized Telescope with Free Barlow & Filters - 205004

SKU: MEA-205004-FG
  • 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: 2X Barlow lens and four planetary filters!
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$559.00

Meade 10" f/8 ACF OTA with UHTC - 1008-80-01

SKU: MEA-1008-80-01
  • Optical Design: Meade ACF
  • 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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$2,529.00

Meade 12" f/8 ACF OTA with UHTC - 1208-80-01

SKU: MEA-1208-80-01
  • Optical Design: Meade ACF
  • 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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$3,699.00

Meade 14" f/8 ACF OTA with UHTC - 1408-80-01

SKU: MEA-1408-80-01
  • Optical Design: Meade ACF
  • 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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$5,569.00

Meade 16" f/8 ACF OTA with UHTC - 1608-80-01

SKU: MEA-1608-80-01
  • Optical Design: Meade ACF
  • 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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$8,249.00
Celestron 8" NexStar Evolution with StarSense

Celestron NexStar Evolution 8" EdgeHD with StarSense - 12096

SKU: CEL-12096
  • Optical Design: Celestron EdgeHD
  • Telescope Aperture: 203.2mm (8")
  • Focal Ratio: f/10
  • Telescope Mount Type: Alt-Azimuth
  • Type of Electronics: Computerized GoTo
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$2,449.00

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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