ZWO EAF focus motor with USB-C connection, Bluetooth and integrated rechargeable battery

ZWO EAF focus motor with USB-C connection for power supply and data transfer

The proven ZWO EAF has been further improved. It has a more versatile Type-C interface for comprehensive compatibility and easy installation.
In addition to the already good features of the standard version, the "Pro" version has some special features.

Pro variant only: Wireless Bluetooth Control
The EAF Pro features a built-in low-power Bluetooth 5.0 chip, enabling wireless connectivity with ASIAIR and smart cameras. It is fully compatible with ASIAIR APP, ASIStudio, and ASCOM platform software, offering flexible and cable-free focus control.

Pro variant only: Built-in Lithium Battery
Powered by an integrated lithium battery, the EAF Pro frees you from external power constraints and enables truly wireless operation. It offers greater flexibility and ease of use to meet diverse needs.

Pro variant only: Integrated Focusing Buttons
The EAF Pro features integrated focusing buttons on its body, allowing users to make quick and precise adjustments even after installation. This design greatly enhances usability and flexibility, enabling seamless focusing across a variety of observing and imaging scenarios.

Micron-level Positioning Accuracy
The ZWO EAF integrates a high-precision custom stepper motor with compact yet powerful performance. Featuring a 1:128 reduction ratio, it provides the motor with strong torque and precise control capabilities, achieving micron-level positioning accuracy. Each rotation responds precisely to commands, ensuring accurate and reliable focusing.

High Load Capacity
Astronomical observation equipment often requires the use of various heavy components. The ZWO EAF, despite its compact size, can support a high load capacity of up to 5kg (11.02lbs), as rigorously tested in ZWO Laboratory. Its powerful performance ensures stable operation of a wide range of equipment, meeting diverse observation needs.

More universal Type-C interface
The EAF is an upgrade of the previous version, whereby the interface has been changed from Type-B to the more universal Type-C. Users can connect the EAF directly to a camera, computer or ASlAlR via a Type-C connection for power supply and data transfer. This simplifies cable management and reduces power consumption.

Important notes

If the EAF is used with an ASIair equipped with a USB-C port, the EAF must still be connected to one of the USB-A ports. The USB-C port of the ASIair is only suitable for data transfer and can not supply the EAF with power!

The manufacturer specifies an operating temperature range of -5 to +50 °C. It is therefore advisable to use heating sleeves in winter. Two suitable models are linked in the accessories section.

Extensive Software Support
EAF supports both ASCOM and INDI protocols, making it compatible with a wide range of astrophotography software, including:

ZWO-developed platforms: ASIStudio and ASIAIR APP

Third-party software: SharpCap, FireCapture, Maxim DL, The SkyX, SGP, Nebulosity, and more

Also compatible with third-party focusing software such as FocusMax

Optional hand controller
The EAF hand controller is made of high-quality, eco-friendly ABS material to ensure a comfortable grip. The hand controller provides an easy method of focusing the telescope, featuring IN and OUT buttons, allowing for smooth manual focusing without relying on a computer or smartphone. This design also minimizes subtle vibrations during operation, helping to maintain precise focus. A "must-have" option for EAF users!

Compatibility
ZWO is constantly expanding the list of focusers that are directly compatible with the EAF motor focuser. Here is the link to the listing of focusers on ZWO´s site: ZWO EAF Compatible Focuser List & Connecting Methods.

The EAF motor focus will also fit, possibly with suitably sized washers, on the following apos from TS-Optics:
TSAPO85, TSAPO96, TSAPO106, TSAPO106FF, TSED152F5, TSAPO204

Assembly instructions for TS telescopes
Teleskop-Service provides online instructions for mounting the ZWO-EAF to TS telescopes, they can be downloaded here.

Mounting instructions for TS Photoline telescopes
These instructions will help you to connect the EAF from ZWO to the 2.5" RAP focusers from TS-Optics: Installation-EAF-on-Photoline-telescopes.pdf
It also applies, among others, to all refractors from TS with 2.5" rack-and-pinion focusers.

EAF Pro

Bracket (connecting rail)

Shaft couplings for the following focuser connection dimensions: 4 mm, 5 mm, 6 mm, 7 mm

Various screws, washers and Allen keys

USB-C cable

Note: This version of the EAF has a drive shaft with a diameter of four millimeters, while the previous models are equipped with a 5 mm shaft. For this reason, older shaft couplings can no longer be used.

Safety informations: PDF Download