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Astrophotography Deal - Celestron 11" RASA - $1000 Off - Now Only $2595 - Limited Quantity On Hand

Catadioptric Telescopes

Items 76 - 100 of 183

Meade 12" f/10 LX200 ACF OTA - 1210-60-01

SKU: MEA-1210-60-01
  • Optical Design: Meade ACF
  • Telescope Aperture: 305mm (12")
  • Focal Ratio: f/10
  • Telescope Mount Type: No Mount - OTA Only
  • Type of Electronics: OTA Only - No Electronics
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$2,899.00

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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$1,999.99

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

Celestron 8" NexStar Evolution Computerized Telescope with Free Accessory Kit - 12091

SKU: CEL-12091-FG
  • 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: 13-Piece Eyepiece & Filter Kit in an Aluminum Case!
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$1,699.00

Celestron 9.25" NexStar Evolution Computerized Telescope with Free Accessory Kit - 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
  • Extra Included Accessories: 13-Piece Eyepiece, Barlow & Filter Kit!
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$2,199.00

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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$3,403.85 $3,299.00

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
  • Extra Included Accessories: Celestron 2" Accessory Kit with Diagonal, Eyepiece & Filters, Celestron 7A Power Tank and AC Adapter!
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$2,403.85 $2,199.00

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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$734.85 $599.95

GSO 12" f/8 Ritchey-Chretien Optical Tube - Truss Tube OTA - 12RCT

SKU: GSO-12RCT
  • Optical Design: Ritchey-Chretien
  • 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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$4,295.00
GSO 10" Truss Tube RC

GSO 10" f/8 Ritchey-Chretien Optical Tube - Truss Tube OTA - 10RCT

SKU: GSO-10RCT
  • Optical Design: Ritchey-Chretien
  • 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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$2,995.00
GSO 12" f/8 RC from Side

GSO 14" f/8 Ritchey-Chretien Optical Tube - Truss Tube OTA - 14RCT

SKU: GSO-14RCT
  • Optical Design: Ritchey-Chretien
  • 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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$5,795.00
GSO 12" f/8 RC

GSO 16" f/8 Ritchey-Chretien Optical Tube - Truss Tube OTA - 16RCT

SKU: GSO-16RCT
  • Optical Design: Ritchey-Chretien
  • 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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$6,995.00
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

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
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
  • Extra Included Accessories: High Point Filter & Eyepiece Kit, Flexible Dew Shield, and 1.25" UHC Filter.
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$1,550.90 $1,399.95

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 $1,799.95
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: High Point Filter & Eyepiece Kit, Dew Shield & UHC Filter!
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$2,465.45 $2,299.95
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: High Point Eyepiece & Filter Kit with Case, DC Adapter & 7AH Power Tank
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$2,018.89 $1,749.95
Celestron 8" Evolution Optical Tube Assembly

Celestron 8" NexStar Evolution SCT OTA - Gray - 12091-OTA

SKU: CEL-12091-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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$699.95

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

SKU: MEA-205005
  • Optical Design: Maksutov-Cassegrain
  • Telescope Aperture: 125mm (4.92")
  • Focal Ratio: f/15
  • Telescope Mount Type: Alt-Azimuth
  • Type of Electronics: Computerized GoTo
Available Used from $560.00
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$699.00
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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$2,999.00
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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$3,299.00
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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$4,199.00

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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$3,299.00

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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$4,199.00

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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