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Catadioptric Telescopes

Items 1 - 25 of 26

Celestron NexStar 6SE Computerized Telescope - 11068

SKU: CEL-11068
  • 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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$799.00 $699.00

Celestron SkyProdigy 6 Computerized Telescope - 11076

SKU: CEL-11076
  • Optical Design: Schmidt-Cassegrain
  • Telescope Aperture: 152mm (5.98")
  • Focal Ratio: f/9.9
  • Telescope Mount Type: Alt-Azimuth
  • Type of Electronics: Computerized GoTo
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$899.00

Celestron Advanced VX Series 6" Schmidt Cassegrain Go To Telescope - 12079

SKU: CEL-12079
  • Optical Design: Schmidt-Cassegrain
  • Telescope Aperture: 150mm (5.9")
  • 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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$1,329.00

Meade 6" ACF LightSwitch Computerized Telescope - 0610-03-10

SKU: MEA-0610-03-10
  • Optical Design: Meade ACF
  • Telescope Aperture: 152.4mm (6")
  • Focal Ratio: f/10
  • Telescope Mount Type: Alt-Azimuth
  • Type of Electronics: Computerized GoTo
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$1,599.00

Celestron C6-A SCT Optical Tube with CG-5 Dovetail - 91010-XLT

SKU: CEL-91010-XLT
  • Optical Design: Schmidt-Cassegrain
  • Telescope Aperture: 150mm (5.9")
  • Focal Ratio: f/10
  • Telescope Mount Type: No Mount - OTA Only
  • Type of Electronics: OTA Only - No Electronics
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$649.95 $398.95

Celestron NexStar 6SE Telescope Bundle with Star Sense - 11068-BUN3

SKU: CEL-11068-BUN3
  • 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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$1,328.95 $1,228.95
Celestron NexStar 6SE Bundle with AC Adapter, Powertank & Eyepiece Kit

Celestron NexStar 6SE Telescope Bundle - 11068-BUN1

SKU: CEL-11068-BUN1
  • Optical Design: Schmidt-Cassegrain
  • Telescope Aperture: 150mm (5.9")
  • Focal Ratio: f/10
  • Telescope Mount Type: Alt-Azimuth
  • Type of Electronics: Computerized GoTo
  • This NexStar 6SE package includes a 13-piece Eyepiece & Filter Accessory Kit, a 12V Power Supply, and an AC Adapter!
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$1,063.85 $899.00
Celestron Evolution 6 Telescope Bundle

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
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$1,550.90 $1,299.95

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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$750.00 $680.00

GSO 6" f/9 Ritchey-Chretien Optical Tube - Steel OTA - 6RC

SKU: GSO-6RC
  • Optical Design: Ritchey-Chretien
  • Telescope Aperture: 152.4mm (6")
  • Focal Ratio: f/9
  • Telescope Mount Type: No Mount - OTA Only
  • Type of Electronics: OTA Only - No Electronics
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$399.00 $339.15

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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$1,299.00 $1,099.00
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 6" Maksutov-Cassegrain on LX85 Mount - Left

Meade 6" Maksutov-Cassegrain on LX85 GoTo Equatorial Mount - 217002

SKU: MEA-217002
  • Optical Design: Maksutov-Cassegrain
  • Telescope Aperture: 150mm (5.9")
  • Focal Ratio: f/12
  • Telescope Mount Type: Equatorial
  • Type of Electronics: Computerized GoTo
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$1,399.00 $1,249.00
Meade 6" ACF Telescope on LX85 GoTo Equatorial Mount

Meade 6" ACF Telescope on LX85 GoTo Equatorial Mount - 217005

SKU: MEA-217005
  • Optical Design: Meade ACF
  • Telescope Aperture: 152mm (5.98")
  • Focal Ratio: f/10
  • Telescope Mount Type: Equatorial
  • Type of Electronics: Computerized GoTo
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$1,399.00 $1,299.00
Meade 6" LX65 Maksutov-Cassegrain with Single-Arm GoTo Mount

Meade 6" LX65 Maksutov-Cassegrain with Alt-Az Single-Arm GoTo Mount - 228002

SKU: MEA-228002
  • Optical Design: Maksutov-Cassegrain
  • Telescope Aperture: 152.4mm (6")
  • Focal Ratio: f/12
  • Telescope Mount Type: Alt-Azimuth
  • Type of Electronics: Computerized GoTo
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$899.00 $809.00
Meade 6" LX65 ACF Telescope with Single Arm Mount

Meade 6" LX65 ACF Telescope with Alt-Az Single-Arm GoTo Mount - 228003

SKU: MEA-228003
  • Optical Design: Meade ACF
  • Telescope Aperture: 152.4mm (6")
  • Focal Ratio: f/10
  • Telescope Mount Type: Alt-Azimuth
  • Type of Electronics: Computerized GoTo
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$999.00 $899.00

Orion 150mm Maksutov-Cassegrain Telescope Optical Tube - 09967

SKU: ORI-09967
  • 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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$599.99
iOptron 6" Photron Ritchey-Chretien Telescope with CEM25P EQ Mount & 2" Tripod

iOptron Photron 150 RC Telescope Package with CEM25P Mount & 2" Tripod - 12150

SKU: IOP-12150
  • Optical Design: Ritchey-Chretien
  • Telescope Aperture: 150mm (5.9")
  • Focal Ratio: f/9
  • Telescope Mount Type: Equatorial
  • Type of Electronics: Manual Mount - No Electronics
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$1,498.00
iOptron Photron 150 Ritchey-Chretien Telescope OTA

iOptron 6" Photron RC Telescope OTA - 6111

SKU: IOP-6111
  • Optical Design: Ritchey-Chretien
  • Telescope Aperture: 150mm (5.9")
  • Focal Ratio: f/9
  • Telescope Mount Type: No Mount - OTA Only
  • Type of Electronics: OTA Only - No Electronics
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$399.00

iOptron 150mm Rumak Maksutov-Cassegrain OTA - 6101

SKU: IOP-6101
  • 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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$848.00
Explore Scientific FirstLight MAK152 Telescope

Explore Scientific FirstLight 152mm Mak-Cassegrain with EXOS2GT GoTo Mount - FL-MC1521900EXOS2GT

SKU: EXS-FL-MC1521900EXOS2GT
  • Optical Design: Maksutov-Cassegrain
  • Telescope Aperture: 152mm (5.98")
  • Focal Ratio: f/12.5
  • Telescope Mount Type: Equatorial
  • Type of Electronics: Computerized GoTo
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$1,399.99 $1,189.99
iOptron Urban 150 Maksutov-Cassegrain on AZ Mount Pro

iOptron Urban 150 Maksutov-Cassegrain on AZ Mount Pro - 10150

SKU: IOP-10150
  • Optical Design: Maksutov-Cassegrain
  • Telescope Aperture: 150mm (5.9")
  • Focal Ratio: f/12
  • Telescope Mount Type: Alt-Azimuth
  • Type of Electronics: Computerized GoTo
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$1,899.00
Meade LX85 6" Maksutov Cassegrain OTA

Meade LX85 6" Maksutov Cassegrain OTA - 217023

SKU: MEA-217023
  • 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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$699.00
Meade 6" LX85 ACF Optical Tube Assembly

Meade 6" LX85 ACF Optical Tube Assembly - 217024

SKU: MEA-217024
  • Optical Design: Meade ACF
  • Telescope Aperture: 152.4mm (6")
  • Focal Ratio: f/10
  • Telescope Mount Type: No Mount - OTA Only
  • Type of Electronics: OTA Only - No Electronics
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$729.00
Meade 6" LX65 Maksutov-Cassegrain OTA

Meade 6" LX65 Maksutov-Cassegrain OTA - 228012

SKU: MEA-228012
  • Optical Design: Maksutov-Cassegrain
  • Telescope Aperture: 152.4mm (6")
  • Focal Ratio: f/12
  • Telescope Mount Type: No Mount - OTA Only
  • Type of Electronics: OTA Only - No Electronics
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$549.00

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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