A camera, a lens and one motor against the rotation · review
A spring-driven mechanical star tracker for cameras and light telephoto lenses, carrying up to four kilograms and running without any power source at all.
The bottom line The tracker that cannot run out of power, with a published payload and an unpublished running time.
The whole argument for this design is that it has no electrical parts. It is wound by hand, it turns at sidereal rate, and it works at minus ten degrees exactly as it works at twenty. For anyone who has watched a power bank die halfway through a sequence, that is not a small thing.
Payload is the number that sizes a tracker, and Omegon prints it: up to four kilograms, with wide-angle and light telephoto lenses named as the intended optics. As always, a published capacity describes smooth tracking rather than the point at which something breaks.
A tripod, a ball head and a means of polar alignment. The tracker is the middle of a chain, and the listing does not pretend otherwise.
Running time per winding. Everything else about how this device is used follows from it, and it is not in the advertisement.
German, French, Italian and Spanish Amazon stores ran from 256 € to 262 € on the day of the survey.
American and British Amazon catalogues hold a record for it that nobody is selling.
Figures as Keepa reported them on the day this page was last updated. Stock and pricing shift without warning.
Prices quoted in this text were read on 17 September 2026. The live price is at the top of the page.
| Payload | Up to 4 kg, as the maker publishes it |
|---|---|
| Counterweight | Not published by the maker. |
| Tracking rates | Not published by the maker. |
| Polar alignment method | Not published by the maker. |
| Power source | Purely mechanical, wound by hand; no batteries and no mains supply |
| Weight | Not published by the maker. |
| Head fitting | Not published by the maker. |
| Amazon reference | B09GXR488N (same reference on 6 Amazon marketplaces) |
| EAN | 4049467693079 |
The listing does not say. It is the figure that decides how long a single exposure sequence can run before the mechanism has to be reset, and it is the one number this otherwise well-specified product does not publish.
Cold. A battery loses capacity as the temperature drops, and winter is when the sky is best. A spring does not care, and it weighs less than the cells it replaces.
13 kg stated capacity · GP-level dovetail · 4.9 kg head
An equatorial mount head with radial ball bearings on both axes, a stated capacity of 13 kg, a polar finder and a 4.5 kg counterweight, on a height-adjustable aluminium tripod.
Best for: Carrying a serious tube steadily, with room to motorise later
≈ £539 / €568
14 kg stated capacity · computerised GoTo · alignment without Polaris
A computerised German equatorial GoTo mount with a stated capacity of 14 kg and an alignment routine that does not require sight of Polaris.
Best for: Imaging from a site where the pole is behind a building
≈ $1099 / €1199
Motorised tracker · Wi-Fi and manual control · illuminated polar scope
A motorised photographic tracking mount with Wi-Fi control from a free app, an illuminated polar finder and a DSLR shutter interface for timed sequences.
Best for: Camera-based night sky photography with an alignment routine that is properly supported
≈ €443
