EAF-PRO focusing motor ZWO with integrated battery pack

To expand its range of accessories for its cameras and the needs of astrophotographers, ZWO offers a compact focusing motor. Called EAF (Electronical Automatic Focuser), it can be installed on a wide range of instruments using a rigid mounting bracket and controlled with most current software packages or with the ASIAIR box.

Good focusing is crucial to obtain a quality image. Motorized focusing provides greater precision and avoids touching the optical tube (which causes annoying vibrations, especially at high magnifications). Thanks to a fast, precise and compact system, ZWO allows you to significantly improve the quality of your images, an essential advantage for planetary or deep sky astrophotography. An L-shaped aluminum bracket is perforated with several strips and holes, allowing the EAF to be attached to a wide range of eyepiece holders. Four couplers are supplied to fit the different axes of existing eyepiece holders (on the end of the focusing wheel).

View of the adjustment motor ZWO EAF, Pro version on left and -N version on right

The -Pro version has a number of important advantages:

• Integrated lithium-ion battery for greater freedom of use
• Integrated focus button
• Bluetooh connection to avoid the need for an additional cable
• As with the EAF-N, new USB Type-C connection.

Specifications Stepper motor ZWO EAF-PRO

Resolution: 7.5°/sec - Ratio: 1:128

Load capacity: 5kg

Coupling shaft: 4mm

Data transfer: USB2.0 type C to A port

Battery included: (lithium-ion)

Focus button: built-in

Power supply 5V (500mA): via USB port

Bluetooth: included (5.0)

Auxiliary port: optional control panel/thermal probe connection

Dimensions: 41mm x 52mm x 73,4mm

Weight: 258g

Dimensions and measurements

Dimensions and measurements of the focusing motor ZWO EAF-PRO

IMPORTANT NOTE: at the moment, it is only compatible with the latest version of Asiair plus (RK version). It is not compatible with Asiair Pro, Mini and Plus CM4.