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Catadioptric Telescopes

14 Items

Celestron NexStar 5SE Computerized Telescope with Free Eyepiece & Filter - 11036

SKU: CEL-11036-FG
  • Optical Design: Schmidt-Cassegrain
  • Telescope Aperture: 125mm (4.92")
  • Focal Ratio: f/10
  • Telescope Mount Type: Alt-Azimuth
  • Type of Electronics: Computerized GoTo
  • Extra Included Accessories: 15 mm Plossl Eyepiece and a Moon Filter!
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$699.00

Celestron NexStar 127 SLT Computerized Telescope - 22097

SKU: CEL-22097
  • Optical Design: Maksutov-Cassegrain
  • Telescope Aperture: 127mm (5")
  • Focal Ratio: f/12
  • Telescope Mount Type: Alt-Azimuth
  • Type of Electronics: Computerized GoTo
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$509.95

Orion StarMax 127 Maksutov-Cassegrain EQ Telescope - 09826

SKU: ORI-09826
  • Optical Design: Maksutov-Cassegrain
  • Telescope Aperture: 127mm (5")
  • Focal Ratio: f/12.1
  • Telescope Mount Type: Equatorial
  • Type of Electronics: Manual Mount - No Electronics
$599.99
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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$499.00 $458.95
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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$435.00
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 $599.99
Meade ETX 125 Observer Telescope Bundle

Meade ETX125 Observer Telescope Bundle - 205005-BUN1

SKU: MEA-205005-BUN1
  • Optical Design: Maksutov-Cassegrain
  • Telescope Aperture: 125mm (4.92")
  • Focal Ratio: f/15
  • Telescope Mount Type: Alt-Azimuth
  • Type of Electronics: Computerized GoTo
  • Extra Included Accessories: Celestron Eyepiece & Filter Kit, 7AH Power Tank and Meade DC Power Cable
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$918.89 $799.95
Meade 5" LX65 Maksutov-Cassegrain with Single-Arm GoTo Mount

Meade 5" LX65 Maksutov-Cassegrain with Alt-Az Single-Arm GoTo Mount - 228001

SKU: MEA-228001
  • Optical Design: Maksutov-Cassegrain
  • Telescope Aperture: 127mm (5")
  • Focal Ratio: f/15
  • Telescope Mount Type: Alt-Azimuth
  • Type of Electronics: Computerized GoTo
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$799.00 $699.00

Celestron NexStar 5SE Telescope Bundle - 11036-BUN1

SKU: CEL-11036-BUN1
  • Optical Design: Schmidt-Cassegrain
  • Telescope Aperture: 125mm (4.92")
  • Focal Ratio: f/10
  • Telescope Mount Type: Alt-Azimuth
  • Type of Electronics: Computerized GoTo
  • Extra Free Accessories: Celestron Eyepiece & Filter Kit, Celestron 7A Power Tank, and AC Adapter
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$963.85 $799.00
SkyWatcher 127 mm Skymax Mak-Cass Telescope OTA with AZ-GTi Alt-Az Mount & Tripod

Sky-Watcher 127 mm Skymax Maksutov-Cassegrain OTA with AZ-GTi Multi-Purpose Mount & Tripod - S21130

SKU: SKY-S21130
  • Optical Design: Maksutov-Cassegrain
  • Telescope Aperture: 127mm (5")
  • Focal Ratio: f/12.1
  • Telescope Mount Type: Alt-Azimuth
  • Type of Electronics: Computerized GoTo
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$725.00

Explore Scientific FirstLight 127mm Mak-Cassegrain with Twilight Nano Mount - FL-MC1271900TN

SKU: EXS-FL-MC1271900TN
  • 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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$419.99

Explore Scientific FirstLight 127 mm White Tube Maksutov-Cassegrain w/EQ3 Mount - FL-MC1271900EQ3

SKU: EXS-FL-MC1271900EQ3
  • Optical Design: Maksutov-Cassegrain
  • Telescope Aperture: 127mm (5")
  • Focal Ratio: f/15
  • Telescope Mount Type: Equatorial
  • Type of Electronics: Manual Mount - No Electronics
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$499.99
Meade 5" LX65 Maksutov-Cassegrain OTA

Meade 5" LX65 Maksutov-Cassegrain OTA - 228011

SKU: MEA-228011
  • Optical Design: Maksutov-Cassegrain
  • Telescope Aperture: 127mm (5")
  • Focal Ratio: f/15
  • Telescope Mount Type: No Mount - OTA Only
  • Type of Electronics: OTA Only - No Electronics
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$439.00
Orion StarSeeker IV 127 mm GoTo Maksutov-Cassegrain Telescope and Mount

Orion StarSeeker IV 127 mm GoTo Maksutov-Cassegrain Telescope - 13163

SKU: ORI-13163
  • Optical Design: Maksutov-Cassegrain
  • Telescope Aperture: 127mm (5")
  • Focal Ratio: f/12.1
  • Telescope Mount Type: Alt-Azimuth
  • Type of Electronics: Computerized GoTo
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$699.99

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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