ZWO AM7 Harmonic Equatorial Mount

44 lb. Capacity from a 14.9 lb. Mount

The core of the AM7's design is its strain wave gear and synchronous belt drive system, which achieves a high payload-to-weight ratio that conventional worm gear mounts cannot match. This allows you to carry up to 44 lb. of imaging equipment without the need for a counterweight, drastically reducing the total weight and complexity of your field setup. For heavier optical tubes, adding a counterweight to the included M16 bar increases the total capacity to 66 lb., putting large refractors and SCTs well within its capability.

ZWO AM7 vs. AM5: A 33% Payload Increase

For imagers deciding between ZWO's harmonic mounts, the choice comes down to payload. The AM5 is an exceptional performer, but its lighter 12 lb. body is optimized for a 33 lb. payload.

• ZWO AM5 Advantage: At just 12 lb., the AM5 head is lighter and more portable, making it the superior choice for grab-and-go setups or airline travel where every pound counts.
• ZWO AM7 Advantage: The AM7 supports a 44 lb. payload—a 33% increase over the AM5—and includes a beefier M16 counterweight bar as standard. This extra capacity provides critical stability for heavier OTAs or dual-scope setups, ensuring your system has room to grow without compromising tracking accuracy.

Dual-Mode Operation from 0° to 90° Latitude

The AM7 operates seamlessly as both an equatorial mount for imaging and an alt-azimuth mount for visual observing. The conversion is purely mechanical, requiring no firmware changes. With an exceptionally wide latitude adjustment range of 0° to 90°, you can polar align the mount anywhere on Earth. The +/- 7.5° azimuth adjustment range provides ample room for fine-tuning your alignment without having to move the tripod.

Integrated Saddle Ports and Vixen/Losmandy Compatibility

Cable management is simplified by the power and data ports located directly on the saddle plate. A 12V DC output and a USB-C port provide power and mount control connections right next to your camera and guide scope, minimizing the risk of cable snags during a meridian flip. The dual saddle accepts both Vixen-style and Losmandy D-style dovetail bars, offering out-of-the-box compatibility with virtually any telescope OTA.