Sky-Watcher 180mm Maksutov-Cassegrain Telescope OTA

More Views

Sky-Watcher 180mm Maksutov-Cassegrain Telescope OTA
Item # SW-S11540
6 Questions(s)

Waiting List

  • The Sky-Watcher 180 mm Maksutov-Cassegrain Telescope is still small enough to be a portable scope while providing a generous 7" aperture size for bright images.
  • A long focal ratio of f/15 produces dark star backgrounds for refractor-like contrast.
  • This telescope includes a 8x50 optical finder scope, a 2" 90° Star Diagonal, and a 2" 28mm eyepiece
  • The Skywatcher 7" Maksutov Cassegrain is mounted on a black V-style dovetail plate, and is ready to attach to your favorite mount.


Sky-Watcher 180 mm Maksutov-Cassegrain Telescope

This Sky-Watcher 180 mm Maksutov-Cassegrain Telescope is a portable scope for its aperture, and will impress you with its performance. You could take it along on your next trip to a star party or even on a vacation. Although this telescope is compact in size compared to a Newtonian or refractor, it has the kind of optical quality you's expect from a fine Maksutov-Cassegrain OTA. Because it uses the diffraction-limited Maksutov optical system, it produces high resolution sharp images with high contrast. The optical elements are fully multi-coated to further enhance the image contrast. The aperture of this scope is 180 mm or just over 7" for extra light gathering capacity, meaning you will get brighter and sharper images.

With this 180 mm Maksutov Cassegrain Telescope by Sky-Watcher focusing is accomplished by turning a knob on the rear housing of the scope, which moves the primary mirror slightly to adjust focus. Focusing is smooth and precise. Your star diagonal and eyepiece never move. Speaking of the star diagonal, this telescope includes a 2" 90° star diagonal to accept both 2" and 1.25" eyepieces.

The Sky-Watcher 150 mm Maksutov Cassegrain Telescope comes with a 2" 28 mm LET eyepiece. The included 8x50 finder scope makes it easy to find those celestial objects. This 180 mm (7.09") aperture Maksutov-Cassegrain telescope by Sky-Watcher provides a serious aperture for impressive bright images of celestial objects in and out of the solar system, and the long 2700mm focal length will provide refractor-like contrast. With over 7" of aperture and a proven diffraction-limited Maksutov Cassegrain optical system, you will be amazed at the new celestial observations you will accomplish in no time. Begin experiencing the thrill of astronomical discovery now.

Sky-Watcher 180 mm Maksutov-Cassegrain Telescope Specifications:

    • Optical Design: Maksutov-Cassegrain
    • Aperture: 180 mm (7.09")
    • Focal Length: 2700 mm
    • Focal Ratio: f/15
    • Focal Length of Eyepiece: 28 mm
    • Finderscope: 8x50 straight optical finder scope
    • Diagonal: 2" 90° Star Diagonal
    • Highest Useful Magnification: 360x
    • Optical Coatings: Fully multi-coated
    • Includes a black V-style dovetail plate


Additional Information

Additional Information

SKU SW-S11540
UPC Code 50234115407
Manufacturer Sky-Watcher
Telescope Series Sky-Watcher Maksutov
Optical Design Maksutov-Cassegrain
Mount Type None - Optical Tube Only
Telescope Aperture 180mm or 7.09"
Telescope Focal Length 2700mm
Telescope Focal Ratio f/15
Highest Useful Magnification 360x
Optical Coatings Fully Multi-Coated
Dew Shield Included? No, Sold Separately
Eyepiece(s) Included 28mm 2" LET
Focuser Size 2"
Focuser Style Internal Moving Primary
Manual or Electronic Focusing? Manual
Focusing Speeds One-Speed
Tube Color or Finish Gloss Black
Finder Included 8 x 50 Optical Finder
Included Items

Included Items

  • Sky-Watcher 180 mm Maksutov Cassegrain Telescope
  • 2" 90° Star Diagonal
  • 2" 28mm LET Eyepiece
  • 8x50 Finder
  • Black Vixen-Style Dovetail Plate
Questions & Answers

Product Questions

This telescope can illuminate the sensor of an APS-C camera. I need some additional accessory to connect my DSLR?
what is the weight of this OTA? Also would this scope be okay for a beginner in astrophotography? 1more question and I will hush for now. Could you use a focal reducer for imaging? Thank you for your time!
Will a Televue Everbrite 2" diagonal fit on this scope without an adapter?
This telescope can illuminate the sensor of an APS-C camera. I need some additional accessory to connect my DSLR?
What is the size of the secondary mirror? Also, is the secondary etched on to the primary or is it a Rumak design?
What is the diameter of the dovetail plate?
Support / Downloads
Related Blog Posts