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NOTE: For users of Takahashi, C8, and C11 telescopes:
The new EAF and EAF Pro are not compatible with the 5mm flexible coupling included with the adapter brackets. ZWO will begin offering adapter brackets with a new 4mm flexible coupling for proper installation in about August. The adapter coupling will not be sold separately.
The new generation of ZWO EAF continues the brand’s signature minimalist design, featuring a robust metal housing and precise angular lines — a perfect fusion of form and function. Available in two versions: EAF and EAF Pro — to suit different user needs.
EAF features a more universal Type-C interface for broad compatibility and easy installation.
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.
5kg（11.02lbs） 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 from the previous version, with its interface upgraded from Type-B to the more universal Type-C. Users can power the EAF directly via a Type-C connection to a camera, computer, or ASlAlR, it also supports wired communication via a Type-C interface. Simplifying cable management and reducing power load.
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
Support handle controller and manual focusing
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!
Connection
1. Remove the coarse adjustment knob of the telescope focuser using a suitable sized wrench.
2. Install the coupling on the telescope focuser shaft and tighten the locking screw with the 2mm hex wrench.
3. Attach the focuser body to the coupling, align the EAF motor shaft flat surface with the locking screw, and tighten the locking screw using the provided 2mm hex wrench.
4. Secure the EAF body to the bracket and the bracket to the matching mounting holes in the focuser assembly using the supplied M4 screws. Ensure that the bracket is flush with the EAF mounting surface without any gaps, and that it is parallel to the focuser body surface.
5. Check and ensure that all the connections of the EAF are secure. This completes the hardware installation of the EAF.
6. For curved focusers like the one in the image above, you only need to use wodethe original locking screws and 3 washers to secure the EAF. There is a groove at the bottom of the EAF bracket, and a single screw provides sufficient stability.
Mechanical Diagram
EAF
In The Box
Support Notes
