Sky-Watcher 127mm Maksutov Cassegrain Telescope OTA

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  • Optical Design: Maksutov-Cassegrain
  • Aperture: 127 mm (5-inch)
  • Focal Length: 1500 mm
  • Focal Ratio: f/12


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  • Regular price $435.00

More on the Way* We do not currently have this in stock, but is a common item we carry. More are likely on the way as the manufacturer allows.
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Sky-Watcher 127mm Maksutov Cassegrain Telescope OTA

This 127 mm (5-Inch) Aperture Maksutov-Cassegrain Telescope OTA by Sky-Watcher is the ultimate portable scope with impressive performance. You could take it anywhere. Although this telescope is relatively small in size, it has optical quality beyond what you might expect from a 5-inch compact scope. Because it uses the diffraction-limited Maksutov optical system,the Sky-Watcher 127 mm produces high resolution, sharp images with high contrast. The optical elements are fully multi-coated to further enhance the image contrast.

With this 127 mm Maksutov-Cassegrain Telescope, 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.

The Sky-Watcher 127 mm Maksutov-Cassegrain OTA comes with a 2-inch 90-degree Star Diagonal to make viewing more comfortable, as well as a 28 mm 2-inch LET Long Eye-relief with a Twist-up eye cup) eyepiece and a 6x30 finderscope. If you are a beginner in the fascinating and fun hobby of astronomy, this telescope is a good way to start enjoying impressive views of all those objects you want to see. The 5-inch Maksutov-Cassegrain telescope would also make an awesome travel scope for those amateur astronomers who don't want to haul their big, heavy set up everywhere.

Sky-Watcher 127 mm Maksutov-Cassegrain Telescope Specifications:

  • Focal Length of Eyepiece: 28 mm (2-inch)
  • Finderscope: 6x30 optical finder
  • Diagonal: 2-inch 90-degree Star Diagonal
  • Highest Useful Magnification: 300x
  • Optical Coatings: Fully multi-coated
  • Includes a black V-style dovetail plate


AP 176mm)
Aperture127 mm (5")
Camera/Eyepiece ConnectionInch Drawtube
Dawes Limit0.91 arcseconds
FL 1999mm
Focal Length1500 mm
Focal Ratiof/11.8
FR f/11
Free ShippingYes
Limiting Magnitude14.3
Optical DesignMaksutov Cassegrain
Tube Diameter140mm
Tube Length330mm
Tube Weight11 lbs


  • Sky-Watcher 127 mm Maksutov-Cassegrain Telescope
  • 2-inch 90-degree Star Diagonal
  • 2-inch 28 mm LET Eyepiece
  • 6x30 Finder
  • Black Vixen-Style Dovetail Plate


Customer Reviews
5.0 Based on 3 Reviews
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Joshua M.
LOVE IT!!!!!

I absolutely LOVE this little scope. Its light and very portable. And packs a huge punch in a tiny package. Has been excellent visually for the moon and planets. Got plenty of WOWs letting my friends and family view through it. And it has produced some awesome images of the planets as well! My only gripe is the use of setscrews on the visual back and diagonal. Wish they had compression rings. The visual back uses standard SCT threads so you can easily upgrade the visual back or add accesories like a focal reducer. I have personally used the Antares F/6.3 reducer on mine with great results. No vingetting or distortion in my my 50mm SuperView eyepiece. And very minimal vignetting with my DSLR attached.

Joshua M.
United States
Amazing little scope!

Absolutely amazing little scope, arrived perfectly collimated and provides wonderful views of the moon and planets. Paired with my ZWO camera it has produced awesome results

Edward A.
United States
Top notch dealer and scope

I purchased a SkyWatcher 127mm Maksutov Optical tube assembly from OPT, and couldn't be happier. Wanting to prepare for the upcoming opposition of Mars I choose a Maksutov scope. The quality of this scope is amazing. Being on a retirement budget I'm unable to make large purchases. I took advantage of OPT's payment plan which made it possible to purchase it now. Though I live on the East coast it took little time to arrive at my home. I will surely do business with OPT in the future.