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Catadioptric Telescopes

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  • Sky-Watcher Skywatcher Skymax 180 mm Maksutov-Cassegrain Telescope OTA - S11540 - Used
    $1,200.00 $1,045.00
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  • Explore Scientific Explore Scientific FirstLight 127 mm White Tube Maksutov-Cassegrain w/EQ3 Mount - FL-MC1271900EQ3
    $399.99
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  • Meade LX85 6
    Meade Meade LX85 6" Maksutov Cassegrain OTA - 217023
    $699.00
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  • Meade 6
    Meade Meade 6" LX85 ACF Optical Tube Assembly - 217024
    $729.00
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  • Meade 8
    Meade Meade 8" LX85 ACF Optical Tube Assembly - 217025
    $1,079.00
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  • Meade 5
    Meade Meade 5" LX65 Maksutov-Cassegrain OTA - 228011
    $439.00
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  • Meade 6
    Meade Meade 6" LX65 Maksutov-Cassegrain OTA - 228012
    $549.00
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  • Meade 6
    Meade Meade 6" LX65 ACF Optical Tube Assembly - 228013
    $759.00
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  • Meade 8
    Meade Meade 8" LX65 ACF Optical Tube Assembly - 228014
    $999.00
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  • Meade Meade 8" LX90 ACF Computerized Telescope - No Tripod - 0810-90-03N - Open Box
    $1,699.00 $1,554.00
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  • Orion Orion Sirius EQ-G GoTo 180mm Maksutov-Cassegrain Telescope - 24764
    $1,999.99
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  • iOptron Urban 150 Maksutov-Cassegrain on AZ Mount Pro
    iOptron iOptron Urban 150 Maksutov-Cassegrain on AZ Mount Pro - 10150
    $1,899.00
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  • Celestron CGX 700 Mak-Cass Telescope
    Celestron Celestron CGX 700 Maksutov-Cassegrain Telescope - 12049
    $3,299.00
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  • Celestron 7
    Celestron Celestron CGEM II 700 Maksutov-Cassegrain Telescope - 12016
    $2,699.00
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  • iOptron SmartStar Cube-A-MC90 GoTo GPS Telescope System
    iOptron iOptron SmartStar Cube-A-MC90 GoTo GPS MC Telescope - EQ Wedge Mount - 8604B
    $498.00
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  • Celestron Celestron 8" NexStar Evolution Computerized Telescope - 12091 - Used
    $1,699.00 $1,450.00
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  • Celestron 7
    Celestron Celestron 7" Maksutov-Cassegrain Telescope OTA - 91012
    $1,149.00
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  • Celestron Celestron NexStar 4SE Maksutov-Cassegrain Computerized Telescope - 11049 - Used
    $499.00 $380.00
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  • Celestron Advanced VX 700 Maksutov-Cassegrain Telescope
    Celestron Celestron Advanced VX 700 Maksutov-Cassegrain Telescope - 12035
    $1,999.00
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  • Explore Scientific Explore Scientific FirstLight 100mm Mak-Cassegrain with EQ3 Mount - FL-MC1001400EQ3
    $299.99 $254.99
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  • Explore Scientific Explore Scientific FirstLight 100mm Mak-Cassegrain with Twilight Nano Mount - FL-MC1001400TN
    $279.99
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  • Explore Scientific Explore Scientific FirstLight 127mm Mak-Cassegrain with Twilight Nano Mount - FL-MC1271900TN
    $379.99
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  • Explore Scientific FirstLight MAK152 Telescope
    Explore Scientific Explore Scientific FirstLight 152mm Mak-Cassegrain with EXOS2GT GoTo Mount - FL-MC1521900EXOS2GT
    $1,299.90 $1,109.99
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  • Celestron Celestron NexStar 4SE Maksutov-Cassegrain Computerized Telescope - 11049 - Used
    $499.00 $395.00
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  • Orion Orion 180mm Maksutov-Cassegrain Telescope Optical Tube - 09969 - Used
    $999.99 $820.00
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  • Celestron Celestron NexStar 8SE SCT OTA - Orange Tube - 11069-OTA
    $849.95 $679.95
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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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