Sky-Watcher SkyMax-180 PRO (OTA): The Ultimate Planet Instrument as a Separate Tube
The Sky-Watcher SkyMax-180 PRO is a Maksutov-Cassegrain with a 180mm aperture and an impressive 2700mm focal length (f/15) in a 52cm tube. This is the optical tube assembly (OTA) for those who want to get the absolute most out of lunar, planetary, and double star observations with their own heavy-duty mount. This model has cult status among planetary observers, and rightly so.
What do you see through the SkyMax-180 PRO?
The 180 PRO is the series’ “planetary cannon.” At a focal length of 2700 mm, the included 10 mm eyepiece already provides 270x magnification: levels of detail on Jupiter and Saturn that you’d normally only see in photographs—provided the sky cooperates. The Moon becomes an endless collection of ridges, crater chains, and mountain shadows. Double stars are its second specialty: the high resolution of the 180 mm objective lens resolves close pairs that smaller telescopes fail to separate.
f/15: Made for detail, not for haste
The extremely long focal length provides high magnifications with simple eyepieces and a calm, high-contrast image. The downside comes with it: a narrow field of view and a serious demand on the mount. Count on HEQ5 class or heavier; you would be shortchanging this optics on a mount that is too light.
This is how to get the most out of this telescope
- Give the thick correcting lens plenty of time to cool down. 45 to 60 minutes with these larger lenses. A Maksutov rewards patience with a silent image.
- Protect against dew The front meniscus lens fogs up faster than a mirror. A dew shield is the most useful first upgrade for this type.
- Magnification: The included eyepieces provide 108x and 270x; more is rarely needed, the 270x is already top-class planet viewing.
- Plan with the moon: Around the first quarter you see the most detail along the terminator. Our lunar calendar have the best nights in a row.
For whom yes and for whom no
Hello The moon and planet specialist, double star enthusiast, and urban observer: bright targets don't care much about light pollution. Unsure about the type? Our Telescope Buying Guide for Beginners List the considerations.
Not For wide deep-sky fields, the field of view of this long focal length is too narrow. If you are looking for a complete set, check out the 180 PRO bundles with EQ5 Pro or HEQ5 Pro SynScan. Long exposure deep-sky photography is suited for smart telescopes or a bright Newtonian; moon and planetary shots are precisely a specialty of this optics.
Featured accessories
These accessories add the most after purchase:
- Moon Filter 13%: with this opening, the moon is dazzlingly bright. The Omegon Moon Filter 13% (1.25 inches) dims the light and increases the contrast. More explanation in our Moon filter guide.
- Smartphone adapter: It’s precisely with a Maksutov, with its long brand focal length, that moon photos taken with a phone are impressive. The Sky-Watcher SmartPhoto+ adapter comes with a special 20 mm photo eyepiece.
- Carrier bag A perfectly fitting Maksutov 180 case exists for this tube. Take a look at the carrier bags.
Technical specifications
| Specification | Details |
|---|---|
| Optical design | Maksutov-Cassegrain |
| Opening | 180 mm |
| Focal length | 2700 mm (f/15) |
| Tube length | 20.47 inches |
| Mount | None (separate OTA) |
| Eyepieces | 25 mm LET (108x) and 10 mm SP (270x), 1.25 inch |
| Seeker | 9×50 optical finder scope with crosshair |
| Maximum useful magnification | Circa 360x |
Included in the box
- Sky-Watcher SkyMax-180 PRO Optical Tube Assembly (OTA, without mount)
- 25 mm LET eyepiece (108x) and 10 mm SP eyepiece (270x)
- 9×50 optical finder scope with crosshair
- Free: Stargazer's Handbook by Telescoop.nl (16 pages, Dutch language)
Free Stargazers' Handbook
Every Sky-Watcher telescope from Telescoop.nl comes with our own Stargazer’s Handbook in the box. It’s a 16-page booklet that helps you get started on your first few nights: how to align the finder scope, what magnification to start with, why the image sometimes wobbles, and when a telescope does or doesn’t need to be collimated. It’s not a thick book—just the essentials you really need when you’re starting out.
Honest advice from observers
We sell and use the Sky-Watcher line ourselves. In our Sky-Watcher brand guide We'll explain which series are strong and which you'd rather skip. View the full range on our Sky-Watcher brand page. Order before 11:59 PM for fast delivery within the Netherlands and Belgium. Unsure about assembly or version? Call or email us; we're happy to help you with these systems.
Reviews
There are no reviews yet.