ZWO AM3 Harmonic Mount (without or with tripod): the most compact serious mount for on the go
The AM3 brings the harmonic drive technology of the AM5 line to an even more compact size: 4 kg (8.8 lb) own weight with a 8 kg payload without counterweight and up to 13 kg with counterweight. Enough for an apochromat with camera, filter wheel, and guider, in a mount that fits in a backpack.
Each AM3 is individually tested and comes with a guaranteed periodic error of less than 20 arcseconds. The backlash-free strainwave drive follows smoothly and precisely, exactly what long exposures demand.






Two modes, one switch
The AM3 works in equatorial mode for astrophotography and in alt-azimuth mode for visual work or planets. A status LED shows the active mode: red for EQ, green for AZ. This way, the same mount is your visual base during the week and your photo platform on weekends.
Via the ST-4 guide port and full ASIAIR integration, you can control the entire setup wirelessly, without a laptop or cables across the grass.

Choose your version
The AM3 is available as a standalone mount or bundled with the carbon fiber tripod at a more affordable price. Those who already own a tripod with the correct connection can opt for the standalone version; for a complete mobile base, the combination with the carbon fiber tripod is the logical choice.
With a PE160 or PE200 pier extension, you increase the freedom of movement around the zenith, especially with longer tubes.
Featured accessories
- ZWO Counterweight Bar for AM3 / AM5: recommended towards maximum load capacity
- ZWO PE160 Pier Extension: extra freedom at low and high viewing angles
- ZWO ASIAIR Plus or ASIAIR Mini: wireless control and guiding
- ZWO Mini Guidescope 30mm f/4: Lightweight guiding set for short focal lengths
For whom yes, for whom no
Hello traveling astrophotographers and balcony observers seeking maximum quality per kilogram.
Not If you want to carry a heavy Newton or SC weighing over 13 kg, choose the AM5N.
Specifications
| Type | harmonic drive mounting, switchable EQ and alt-azimuth |
| Carrying capacity | 8 kg without counterweight, 13 kg with counterweight |
| Own weight | 4 kg (8.8 lb) |
| Periodic error | guaranteed under 20 arcseconds (individually tested) |
| Mode indication | status LED: red EQ, green AZ |
| Guiding | ST-4 port, full ASIAIR integration |
| Performances | Loose mounting or with carbon tripod |
The AM3 is the lightest route to play-free tracking within the mounting program of ZWO. Choose the version with or without a stand below.




















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