Sky-Watcher · Maksutov-Cassegrain
Sky-Watcher SkyMax 102
A compact Maksutov-Cassegrain that punches above its weight for planetary and lunar observing.
Performance Scores
Overview
The Sky-Watcher SkyMax 102 is a 102mm Maksutov-Cassegrain with a 1300mm focal length and an f/12.7 focal ratio, a combination that makes it particularly well suited for high-magnification planetary and lunar work. The long focal length means you can reach useful magnifications with ordinary eyepieces, and the Maksutov design produces sharp, high-contrast views that shorter refractors or faster reflectors often struggle to match on planets. The matched primary and secondary mirrors, combined with 94% reflectivity coatings on the borosilicate primary, help deliver crisp detail on Saturn's rings, Jupiter's cloud bands, and the Moon's craters.
Weighing just over 2kg, it is genuinely portable, and the included padded bag makes transport straightforward. The Vixen-style dovetail gives you flexibility to mount it on a range of alt-az or equatorial heads. Be aware that the alt-az mount included is basic, better suited for casual visual use than any serious planetary imaging.
The included 10mm and 25mm eyepieces are a reasonable starting point, though upgrading the eyepieces later will help the optics perform closer to their potential.
At a Glance
102mm
Aperture
f/12.7
Focal Ratio
2.09kg
Weight
1300mm
Focal Length
Specifications
Key Features
- The f/12.7 focal ratio rewards planetary observers with high-contrast, detailed views of the Moon, Saturn, and Jupiter
- Compact and lightweight at 2.09kg, making it easy to carry to dark sites or use from a balcony
- 94% reflectivity mirror coatings improve light transmission compared to standard aluminum mirrors
- Fully baffled tube reduces stray light, contributing to the dark background contrast Maksutovs are known for
- Vixen-style dovetail allows easy transfer to a more capable mount as your skills develop
- Comes ready to observe with two eyepieces, a star diagonal, and a padded carrying bag included
- Better suited for high-magnification visual observing than wide-field or deep-sky work due to its narrow field of view
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...