ZWO EAF Pro Upgraded Version Bluetooth Electronic Automatic Focuser Support for ASIAIR APP/ASIStudio
Description:
- 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.
- EAF Pro comes with a built-in battery and Bluetooth connectivity, reducing power supply constraints. It also includes manual focus buttons, allowing direct adjustment even after installation — offering maximum flexibility and convenience. Both models deliver a more user-friendly focusing experience, achieving pinpoint focusing accuracy for breathtaking cosmic imagery.
Unique Advantages of the EAF Pro:
- Upgraded universal Type-C interface
- Micron-level precision focusing
- 3. 5kg (11.02lbs) high load capacity
- EAF Pro with built-in focus adjustment knob
- Bluetooth connectivity (EAF Pro)
- Built-in battery power supply (EAF Pro)
Integrated Focusing Button:
- 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.
Extensive Software Support:
EAF supports both ASCOM and INDI protocols, making it compatible with a wide range of astrophotography software, including:
- ZWO-developed platforms: for ASIStudio and ASIAIR APP.
- Third-party software: for SharpCap, FireCapture, Maxim DL, The SkyX, SGP, Nebulosity, and more. Also compatible with third-party focusing software for 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.

For users of Takahashi, C8, and C11 telescopes:
- The new EAF and EAF Pro is not fully compatible with the 5mm flexible coupling. We strongly recommend using the 4mm flexible coupling (sold separately) for proper installation.
Package Included:
- 1 x Set of EAF Pro






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