Catadioptric Telescopes

  • StarSense Explorer DX 5" Smartphone App-Enabled Schmidt Cassegrain Telescope
    Celestron
    Vendor
    Celestron
    Regular price
    $649.95
    Sale price
    save $-649.95
    Unit price
    per 
  • USED - Mewlon-180C Dall-Kirkham Cassegrain Telescope With Dovetail Plate
    Takahashi
    Vendor
    Takahashi
    Regular price
    $1,998
    Sale price
    save $222
    Unit price
    per 
  • Virtuoso (S11750)
    Sky-Watcher USA
    Vendor
    Sky-Watcher USA
    Regular price
    $375
    Sale price
    save $-375
    Unit price
    per 


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.

Personal Upgrade Path

Buy risk-free: When it’s time to trade up you’ll get the most value for your used gear.