Sky-Watcher Skymax 90mm (3.5") Maksutov-Cassegrain OTA

Sky-Watcher Skymax 90mm (3.5") Maksutov-Cassegrain OTA

Due to high demand and global product shortages due to the pandemic, please call for availability.

The ultra-compact Sky-Watcher 90mm Maksutov-Cassegrain is ideal where space is a premium, and where portability is a must. Don't let the small size fool you, this scope packs a punch. It's short body hides a 1250mm focal length mirror-lens system which delivers up to 180x magnification.


  • Ultra compact - goes anywhere
  • 90mm aperture provides good resolution and light gathering
  • Easy to use red dot finder


  • Aperture: 90mm (3.5")
  • Focal length: 1250mm (49")
  • Focal ratio: f/13.8
  • Highest practical power: 180x
  • Eyepieces: Super 25mm (50x) and 10mm (125x) (1.25")
  • Star diagonal: 90° mirror
  • Finderscope: Red dot
  • Mount: Accepts 1/4" 20tpi camera tripod (not included)
  • Dimensions: 10cm x 24cm (4" x 9")
  • Weight: 1.4kg (3lbs)
  • Two year warranty