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Catadioptric Telescopes

Items 1 - 25 of 48

Meade 8" ACF Light Switch Computerized Telescope - 0810-03-10

SKU: MEA-0810-03-10
  • Optical Design: Meade ACF
  • Telescope Aperture: 203.2mm (8")
  • Focal Ratio: f/10
  • Telescope Mount Type: Alt-Azimuth
  • Type of Electronics: Computerized GoTo
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$1,999.00

Meade 8" LX200 ACF Computerized Telescope - 0810-60-03

SKU: MEA-0810-60-03
  • Optical Design: Meade ACF
  • Telescope Aperture: 203.2mm (8")
  • Focal Ratio: f/10
  • Telescope Mount Type: Alt-Azimuth
  • Type of Electronics: Computerized GoTo
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$2,699.00

Meade 8" LX90 ACF Computerized Telescope - 0810-90-03

SKU: MEA-0810-90-03
  • Optical Design: Meade ACF
  • 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 $1,599.00

Celestron CPC Deluxe 800 with Edge HD Optics - 11007

SKU: CEL-11007
  • 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 $2,249.00

Celestron NexStar 8SE Computerized Telescope - 11069

SKU: CEL-11069
  • Optical Design: Schmidt-Cassegrain
  • Telescope Aperture: 203mm (7.99")
  • Focal Ratio: f/10
  • Telescope Mount Type: Alt-Azimuth
  • Type of Electronics: Computerized GoTo
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$1,199.00 $999.00

Celestron CPC 800 SCT Computerized Telescope with Free 2" Diagonal - 11073-XLT

SKU: CEL-11073-XLT
  • 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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$1,999.00 $1,799.00

Celestron Advanced VX Series 8" Schmidt-Cassegrain Go To Telescope - 12026

SKU: CEL-12026
  • Optical Design: Schmidt-Cassegrain
  • Telescope Aperture: 203.2mm (8")
  • Focal Ratio: f/10
  • Telescope Mount Type: Equatorial
  • Type of Electronics: Computerized GoTo
  • Extra Free Accessories: Celestron Polar Scope for AVX Mount
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$1,739.00

Celestron Advanced VX Series 8" EdgeHD Go To Telescope - 12031

SKU: CEL-12031
  • Optical Design: Celestron EdgeHD
  • Telescope Aperture: 203.2mm (8")
  • Focal Ratio: f/10
  • Telescope Mount Type: Equatorial
  • Type of Electronics: Computerized GoTo
  • Extra Free Accessories: Celestron Polar Scope for AVX Mount
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$2,149.00 $1,934.00

Celestron NexStar 8SE Computerized Telescope - 11069 - Used

SKU: UEQ-11563-CEL-11069
  • Optical Design: Schmidt-Cassegrain
  • Telescope Aperture: 203mm (7.99")
  • Focal Ratio: f/10
  • Telescope Mount Type: Alt-Azimuth
  • Type of Electronics: Computerized GoTo
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$1,199.00 $999.00
$1,199.00 $950.00

Celestron NexStar 8SE Computer Telescope Bundle with Hard Case - 11069-BUN5

SKU: CEL-11069-BUN5
  • Optical Design: Schmidt-Cassegrain
  • Telescope Aperture: 203.2mm (8")
  • Focal Ratio: f/10
  • Telescope Mount Type: Alt-Azimuth
  • Type of Electronics: Computerized GoTo
  • Bundle includes an eyepiece & filter kit, custom hard case,, 12V Power Tank, AC Adapter, a light pollution filter & a cleaning tool!
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$1,574.95

Celestron NexStar 8SE SCT OTA Orange Tube - 11069-OTA

SKU: CEL-11069-OTA
  • Optical Design: Schmidt-Cassegrain
  • Telescope Aperture: 203.2mm (8")
  • Focal Ratio: f/10
  • Telescope Mount Type: No Mount - OTA Only
  • Type of Electronics: OTA Only - No Electronics
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$849.95 $679.95

Celestron C8-A SCT Aluminum Optical Tube with CGE Dovetail - CEL-91024-XLT

SKU: CEL-91024-XLT
  • Optical Design: Schmidt-Cassegrain
  • Telescope Aperture: 203.2mm (8")
  • Focal Ratio: f/10
  • Telescope Mount Type: No Mount - OTA Only
  • Type of Electronics: OTA Only - No Electronics
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$1,049.95 $795.95

Celestron EdgeHD 8 OTA - 8" f/10 Aplanatic SCT OTA - CGE Dovetail - 91030-XLT

SKU: CEL-91030-XLT
  • Optical Design: Celestron EdgeHD
  • Telescope Aperture: 203.2mm (8")
  • Focal Ratio: f/10
  • Telescope Mount Type: No Mount - OTA Only
  • Type of Electronics: OTA Only - No Electronics
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$1,349.00

8" Celestron Edge HD 8 SCT OTA - CG-5 Dovetail - 91031-XLT

SKU: CEL-91031-XLT
  • Optical Design: Celestron EdgeHD
  • Telescope Aperture: 203.2mm (8")
  • Focal Ratio: f/10
  • Telescope Mount Type: No Mount - OTA Only
  • Type of Electronics: OTA Only - No Electronics
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$1,349.00

Celestron C8-A SCT Aluminum Optical Tube with CG-5 Dovetail - 91020-XLT

SKU: CEL-91020-XLT
  • Optical Design: Schmidt-Cassegrain
  • Telescope Aperture: 203.2mm (8")
  • Focal Ratio: f/10
  • Telescope Mount Type: No Mount - OTA Only
  • Type of Electronics: OTA Only - No Electronics
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$1,059.95 $818.99
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 $1,185.75

Orion SkyView Pro 180 mm GoTo Maksutov-Cassegrain Telescope - 24762

SKU: ORI-24762
  • Optical Design: Maksutov-Cassegrain
  • Telescope Aperture: 180mm (7.09")
  • Focal Ratio: f/15
  • Telescope Mount Type: Equatorial
  • Type of Electronics: Computerized GoTo
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$2,099.99

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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$1,699.00 $1,499.00

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
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$2,403.85 $2,099.00
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: Celestron Eyepiece & Filter Kit with Case, DC Adapter & 7AH Power Tank
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$2,018.89 $1,749.95

Celestron NexStar 8SE Telescope Bundle - 11069-BUN1

SKU: CEL-11069-BUN1
  • Optical Design: Schmidt-Cassegrain
  • Telescope Aperture: 203.2mm (8")
  • Focal Ratio: f/10
  • Telescope Mount Type: Alt-Azimuth
  • Type of Electronics: Computerized GoTo
  • Bundle includes an eyepiece & filter kit, 12V Power Tank, an AC Adapter, a light pollution filter & a cleaning tool!
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$1,529.80 $1,199.95

Celestron NexStar 8SE Professional Telescope Bundle - 11069-BUN2

SKU: CEL-11069-BUN2
  • 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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$1,593.85 $1,349.95

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
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$1,950.90 $1,699.95

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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$1,200.00 $1,075.00

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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