Sky-Watcher 190mm Maksutov-Newtonian Telescope OTA

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Sky-Watcher 190mm Maksutov-Newtonian Telescope OTA
Item # SW-S11550
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  • The Sky-Watcher 190 mm Maksutov-Newtonian Telescope offers exceptional field correction and a fast f/5.3 focal ratio.
  • Enjoy the wonders of the universe with 7.4mm of aperture in a fairly compact tube assembly.
  • This telescope includes a 2" dual speed 10:1 Crayford focuser and a 8x50 erect image finder.
  • The Skywatcher 7.4" Maksutov Newtonian is mounted in a pair of cradle rings that are attached to a Vixen-style dovetail plate, and is ready to attach to your favorite mount.


Sky-Watcher 190 mm Maksutov-Newtonian Telescope

The Sky-Watcher 190 mm Maksutov-Newtonian Telescope is a large aperture instrument with impressive performance, but it is still relatively portable. This scope could be just what you need if you want a wider field of view than is possible with a Maksutov-Cassegrain or a classic refractor. This telescope has a focal ratio of f/5.3 and thus will provide a wider field than a conventional Maksutov. The Mak-Newtonian design, with its fully multi-coated Pyrex mirrors, provides large aperture apochromatic performance with exceptional field correction in a compact, affordable package. Compared to a similarly sized Schmidt-Newtonian, the Mak-Newtonian yields a sharper image with more contrast.

The 190 mm or 7.4" aperture of the Sky-Watcher Maksutov-Newtonian offers you great light gathering capability. Extra aperture translates to brighter and sharper images for you. The OTA is supported by two hinged metal tube rings attached to a black V-style dovetail plate. With its 2" dual-speed 10:1 Crayford focuser, and 8x50 optical finderscope, you are ready to begin on your journey of discovery. Just mount the OTA to your favorite telescope mount via the cradle rings and Vixen-style dovetail. The exciting Maksutov-Newtonian Telescope from Sky-Watcher is just what astrophotographers and serious visual observers have been looking for.

Sky-Watcher 190 mm Maksutov-Newtonian Telescope Specifications:

  • Optical Design: Maksutov-Newtonian
  • Aperture: 190 mm (7.4")
  • Focal Length: 1000 mm
  • Focal Ratio: f/5.3
  • Finderscope: 9x50 right angle correct image finderscope
  • Focuser: 2" dual-speed 10:1 Crayford focuser
  • Highest Useful Magnification: 380x
  • Optical Coatings: Fully multi-coated Pyrex mirrors
  • Includes a black V-style dovetail plate and 2 hinged metal tube rings
Additional Information

Additional Information

SKU SW-S11550
UPC Code 50234115506
Manufacturer Sky-Watcher
Telescope Series Sky-Watcher Maksutov
Optical Design Maksutov-Newtonian
Mount Type None - Optical Tube Only
Telescope Aperture 190mm or 7.4"
Telescope Focal Length 1000mm
Telescope Focal Ratio f/5.3
Highest Useful Magnification 380X
Optical Coatings Fully Multi-Coated
Dew Shield Included? No, Sold Separately
Focuser Size 2"
Focuser Style Crayford
Manual or Electronic Focusing? Manual
Focusing Speeds Two-Speed
Tube Color or Finish Gloss Black
Finder Included 9 x 50 Optical Finder
Included Items

Included Items

  • Sky-Watcher 190 mm Maksutov Newtonian Telescope
  • 2" Dual Speed 10:1 Crayford Focuser
  • 9x50 right angle correct image optical finder scope
  • Black Vixen-style dovetail plate
  • 2 hinged metal tube rings
Questions & Answers

Product Questions

Does this require as much culmination time as a normal Newtonian?
Are the Mirrors Fixed? Only Adjustable for collimation?
What is the percent central obstruction of this scope. I read that the Orion version is 34% and the skywatchers version is 26%. Also is there a fan that will fit this scope for cool down.
What is the weight?
weight please
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