Sky-Watcher · Maksutov-Cassegrain
Sky-Watcher SkyMax 127
A compact 127mm Maksutov-Cassegrain that punches above its weight for planetary and lunar detail.
Price updated Mar 22, 2026
Performance Scores
Overview
The Sky-Watcher SkyMax 127 is built around a Maksutov-Cassegrain design that trades wide-field views for sharp, high-contrast performance at longer focal lengths. With 127mm of aperture and a 1500mm focal length at f/11.8, this is a telescope optimized for the Moon, planets, and double stars rather than deep-sky objects. You will get crisp views of Saturn's rings, Jupiter's cloud bands, and lunar craters in impressive detail, though the narrow field of view and slow focal ratio make it less suited to galaxies and nebulae.
The optical tube weighs just 5.54kg, making it genuinely portable and compatible with a range of mounts via its Vixen-style dovetail. The matched primary and secondary mirrors with 94% reflectivity coatings help squeeze real performance from the aperture. A fully baffled tube keeps stray light in check, which contributes to the contrast that Maksutov designs are known for.
It comes ready to use with a 28mm 2-inch eyepiece, a 2-inch 90-degree star diagonal, and a 6x30 finderscope. At $610, it sits at a reasonable price point for the optical quality on offer, though you will want a solid mount to get the most from it.
At a Glance
127mm
Aperture
f/11.8
Focal Ratio
5.54kg
Weight
1500mm
Focal Length
Specifications
Key Features
- The 1500mm focal length at f/11.8 delivers high magnification well suited to planetary and lunar observation
- Matched primary and secondary mirrors with 94% aluminum and quartz overcoat coatings produce sharp, high-contrast views
- At 5.54kg, the optical tube is light enough to pair with a compact alt-azimuth or equatorial mount for travel use
- The Vixen-style dovetail fits most standard mounts, and a 1/4-20 thread underneath allows mounting on photographic tripods
- A fully baffled tube reduces internal reflections, improving contrast against dark sky backgrounds
- Includes a 28mm 2-inch eyepiece, 2-inch star diagonal, and 6x30 finderscope so you can observe right out of the box
- The narrow field of view limits its usefulness for extended deep-sky objects, so consider your primary targets before buying
Customer Reviews
207 reviews
This a great "little" scope. This review is for the 7" (180mm) maksutov cassegrain. Out of the box, the collimation was perfect. Personally, I am a "refractor person", but when those scopes get up there in aperture, the tube length can become cumbersome for transporting. Maksutov scopes can give you...
I was looking for a lightweight Mak-Cass or similar to mount on a small Alt-Az mount for night hikes. I did NOT want this for go-to or astrophotography. Though I imagine this scope would be great for that too. I wanted a scope that's easy to bring outside and actually use. The first Sky-Watcher I or...
I started with a small 90mm Orion Mak-Cassegrain and wanted something a bit bigger. The 127mm Sky-Watcher was the perfect choice for me. It is a bit larger and heavier than the Orion, but is still much smaller than a Dobsonian. The added focal length and aperture give me a better, brighter, and shar...