ZWO EAF Pro Wireless Electronic Automatic Focuser

True Wireless Freedom

Say goodbye to cable clutter. The EAF Pro features integrated Bluetooth 5.0, enabling seamless wireless control via the ASIAIR app, ASIStudio, and compatible ASCOM platforms. Whether you're operating from a remote observatory or your backyard, the EAF Pro ensures total freedom and precision, no cords required.

Built-In Lithium Battery

The EAF Pro's internal rechargeable lithium battery eliminates the need for external power sources. Designed for high efficiency and reliability, it’s tested to run up to 7 consecutive nights under standard usage conditions, focusing twice per hour over 8-hour nights. No more power limitations; just focus, shoot, and explore.

Integrated Manual Focus Buttons

Adjust focus effortlessly, even without an app or computer. With manual IN/OUT buttons built directly onto the EAF Pro body, you retain full control at all times. Perfect for quick adjustments on the fly or fine-tuning during setup.

Micron-Level Precision

At the heart of the EAF lies a high-precision custom stepper motor with a 7.5° step angle and 1:128 reduction ratio, delivering micron-level positioning accuracy. Every movement is deliberate and exact, enabling pinpoint focusing essential for deep-sky and planetary imaging. Whether you're imaging galaxies or fine lunar detail, the EAF ensures optimal focus every time.

Compact yet High Load Capacity

Despite its compact form, the EAF boasts a high load capacity of 5kg (11.02 lbs) rigorously tested in ZWO’s labs. It can effortlessly handle heavy imaging trains, including filter wheels, OAGs, and cooled cameras, ensuring smooth, stable performance across all your equipment.

Upgraded to USB Type-C

The latest EAF now features a universal USB Type-C interface, replacing the older Type-B connector. This upgrade offers broader compatibility, more convenient power options, and simplified cable management. Power it directly through your camera, computer, or ASIAIR device for seamless integration into your setup.

Extensive Software Compatibility

The ZWO EAF supports a wide range of control software via ASCOM and INDI protocols, making it one of the most versatile focusers available. Compatible platforms include:

• ASIAIR app
• ASCOM
• ASIStudio
• NINA
• SharpCap
• FireCapture
• MaximDL
• Sequence Generator Pro
• and many more