Sky-Watcher Skymax 150 150mm f/12 Maksutov-Cassegrain optical tube


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The Sky-Watcher 150mm (5.9") Maksutov-Cassegrain folded optical system is a compact optical powerhouse capable of producing sharp, high contrast images inside the solar system and out. And it does it all at a surprisingly reasonable price.

Our Product #: S11530
Sky-Watcher Product #: S11530
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Product Description

This 150mm (5.9") aperture Sky-Watcher Maksutov-Cassegrain uses quality Schott optical glass, from the premier German optical glass manufacturer, for exceptional high contrast/high resolution images. Within the solar system you will see domes, rilles, and craters on the Moon that are less than two miles across; many dark Martian surface features, even during less than favorable oppositions; festoons, streamers, and increased detail in Jupiter's cloud belt under good seeing conditions; subtle banding in Saturn's atmosphere; and many faint comets and asteroids.

Outside the solar system, the high resolution 150mm Sky-Watcher will split binary stars separated by as little as one arc second during very good seeing; show you hundreds of star clusters, nebulas, and galaxies, with hints of spiral structure visible in some galaxies; and reveal many NGC and IC objects from a dark sky site, with considerable detail visible in the nebulas and star clusters.

Features of this 150mm Sky-Watcher Maksutov-Cassegrain . . .

Maksutov-Cassegrain optics: 5.9" (150mm) aperture, 1800mm focal length, f/12 optical system using premium Schott optical glass. The system's Maksutov corrector lens is fully multi-coated on both sides with multiple layers of anti-reflection materials for high light transmission and good contrast.

Internal focuser: Focuses by moving the primary mirror fore and aft in the optical tube by means of a large focusing knob on the rear cell.

Star diagonal: 2" 90° mirror type.

2" eyepiece: The 64x eyepiece is a fully multi-coated three-element Sky-Watcher 28mm LET with a long 20mm eye relief and a twist-up eyecup. The eyepiece field of view is 0.875° across, one and three quarter times the diameter of the full Moon, for expansive views of the Moon, nebulas, and globular star clusters.

Finder: 8 x 50mm straight-through dark crosshair achromatic refractor.

Dovetail: Vixen-style dovetail bar for installing the scope on any altazimuth or equatorial mount using a Vixen-style saddle.

Warranty: two years.

Tech Details

Aperture 5.9"
Focal Length 1800mm
Focal Ratio f/12
Highest Useful Magnification 300x
Weight 14 lbs.
Resolution 0.77 arc seconds
Visual Limiting Magnitude 13.4
Warranty 2 years


Review by:
I read about this merits of this Maksutov design telescope on both Cloudy Nights as well as checking it out on this Astronomics website. I do a lot of Lunar and Planetary observation, using various types of scopes, but the relatively smaller obstruction of the secondary spot on this scope drew me to choose it to give it a try with a fellow amateur. The results were very good, especially noticeable when I plopped in a classic Vixen mirror diagonal and pushed the power up to 300x on Saturn on a night of good seeing. Honestly, the clarity of the image was not diminished at all, even when pushing the power near the upper limits. I happen to have some classic binoviewers, and they are perfectly matched for use with this scope, with wonderful views of the Lunar landscape and views of the planets are noticeably better in 3D. For the money, you can't go wrong with this scope. I'd love to experience the 180mm version, someday, also. (Posted on 10/19/2019)
Review by:
I don't own this scope, but was able to try one at a local star party. My scope setup is a 10" Newtonian on a EQ mount, and it's a beast to cart around and set up. I'd love something more compact and portable because I don't have any good dark skies near home. The scope I tried produced lovely sharp images and the focuser was a pleasure to use. (Posted on 10/4/2019)
Review by:
This scope has become my goto grab and go planet killer, at first i was a bit hesitant having never even looked through a Mak design, but my hesitation was played to rest the first time i saw Jupiter. Trust me on this, let the scope cool to outside temp, put in your best eyepieces and on a night of good seeing it will laugh as you push magnification higher and higher on planetary and lunar. Razor sharp detail, festooning and fine detail i on jovian bands i have never seen and, don't get me started on Lunar views, i better stop here. (Posted on 12/18/2018)
Review by:
I purchased this scope back before last summer. I have been using it for high magnification viewing of the moon, mars, and astro-photography. The images are razor sharp. Astro-photos are excellent. The metal tube keeps the instrument still and more durable in wind or light breezes. The 2 inch focuser holds a DSLR with ease. The focuser is of excellent quality and makes finding focus fast and simple. If you want a great instrument that excels with portability and clear images then you will be pleased with this instrument. (Posted on 12/4/2018)
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