Catadioptric Telescopes

  • 11" Rowe-Ackermann Schmidt Astrograph V2 OTA Only (91076)
    Celestron
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    $4,499
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  • 12.5" CDK f/8 OTA with Fused Silica Optics and Delta-T Pre-Wire
    Planewave
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    Planewave
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    $13,000
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  • 14" CDK f/7.2 OTA with Fused Silica Optics
    Planewave
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    Planewave
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    $18,500
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  • 17" CDK Optical Tube Assembly
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    Planewave
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    $26,000
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  • 24 inch Ritchey-Chrétien Optical Tube Assembly
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    Planewave
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    $99,500
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  • 36cm Rowe-Ackermann Schmidt Astrograph (91078)
    Celestron
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    Celestron
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    $14,999
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  • 8" RASA Imaging Kit
    Celestron
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    Celestron
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    $2,599
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  • 8" Rowe-Ackermann Schmidt Astrograph (91073)
    Celestron
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    Celestron
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    $2,199
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  • Advanced VX 11" Schmidt-Cassegrain Telescope (12067)
    Celestron
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    Celestron
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    $3,999
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  • Advanced VX 6 Schmidt-Cassegrain Telescope (12079)
    Celestron
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    Celestron
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    $1,929
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  • Advanced VX 7" Maksutov Cassegrain (12035)
    Celestron
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    Celestron
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    $2,849
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  • Advanced VX 8 EdgeHD Telescope (12031)
    Celestron
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    Celestron
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    $3,079
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  • Advanced VX 8 Schmidt-Cassegrain Telescope (12026)
    Celestron
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    $2,499
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  • Advanced VX 8" Rowe-Ackermann Schmidt Astrograph (RASA) Telescope (12032)
    Celestron
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    Celestron
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    $3,299
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  • Advanced VX 9.25 Schmidt-Cassegrain Telescope (12046)
    Celestron
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    Celestron
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    $3,199
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  • Advanced VX 9.25" EdgeHD (12033)
    Celestron
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    $4,079
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  • Advanced VX RASA 6 (12036)
    Celestron
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    $2,699
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  • C11-A XLT Optical Tube Assembly
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    $3,299.95
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  • C14-AF XLT Optical Tube Assembly (91038-XLT)
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    $6,799.95
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  • C6-A-XLT (CG-5) Optical Tube Assembly (91010-XLT)
    Celestron
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    $879.95
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  • C8-A XLT Optical Tube Assembly
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    $1,399.95
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  • C9.25-A XLT Optical Tube Assembly (91027-XLT)
    Celestron
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    Celestron
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    $1,999.95
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  • CCA-250 (Modified Cassegrain Telescope)
    Takahashi
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    Takahashi
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    $15,610
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  • CDK20 Optical Tube Assembly (F/6.8)
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    Planewave
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    $39,000
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  • CDK20 Optical Tube Assembly (F/7.77)
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    $39,000
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  • CDK24 Optical Tube Assembly
    Planewave
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    Planewave
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    $73,000
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  • CDK350 Observatory System
    Planewave
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    Planewave
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    $33,500
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  • CDK400 Observatory System
    Planewave
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    $52,000
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  • CDK500 Observatory System
    Planewave
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    Planewave
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    $65,000
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  • CDK600 Observatory System
    Planewave
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    Planewave
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    $113,000
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  • CGEM II 1100 Edge HD Telescope (12019)
    Celestron
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    Celestron
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    $5,899
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  • CGEM II 1100 Schmidt-Cassegrain Telescope (12012)
    Celestron
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    Celestron
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    $4,799
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A catadioptric optical system is one that employs both lenses and mirrors to focus the image.  Perhaps the most popular catadioptric among amateur astronomers, the Schmidt-Cassegrain Telescope (or SCT) uses a combination of spherical primary and secondary mirrors, along with a corrector plate (lens) that helps correct for aberrations.  You’ll spend a little more money on this design because it’s more complex to build than a reflector, but the combo of aperture and transportability is hard to resist.

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