Enhance your focusing experience with our dedicated accessories for the ZWO Electronic Automatic Focuser (EAF). All accessories are available for purchase separately.

Available Models:
EAF-BRK-TK
EAF-C8-C925 (for Celestron C8/C9.25)
EAF-C11-C14 (for Celestron C11/C14)
EAF-HC — Hand Controller for EAF
EAF-Sensor — Temperature Sensor for EAF

Coupler Specifications:
Each coupler kit includes two couplers of different inner diameters (4mm and 5mm).
4mm coupler: Compatible with the latest EAFN and EAF Pro models.
5mm coupler: Compatible with the previous-generation EAF.

ZWO EAF-BRK-TK

ZWO EAF for Takahashi Telescope Bracket (TSA-120, FS-60, FSQ-85, FSQ-106)

What's in the box？

Dimensions / Mechanical Diagram

Coupler size: 4mm – 8mm

Coupler size: 5mm – 8mm

EAF-C8-C925

ZWO EAF Bracket for Celestron C8 / C9.25 SCT

Applicable to: EAF-C8-C925, EAF-C11-C14

What's in the box?

Dimensions / Mechanical Diagram

Coupler size: 5mm – 12.8mm

Coupler size: 4mm – 12.8mm

EAF-C11-C14

ZWO EAF Bracket for Celestron C11 / C14 SCT

Applicable to: EAF-C11-C14

What's in the box?

Dimensions / Mechanical Diagram

Coupler size: 5mm – 12.8mm

Coupler size: 4mm – 12.8mm

Connection Method (Celestron SCT Telescopes)

Compatibility Notice:
For some older telescope models, we recommend measuring the focuser knob diameter before purchase to ensure compatibility with the EAF bracket interface.

EAF-HC Electronic Focuser Hand Controller

Designed exclusively for the ZWO Electronic Automatic Focuser (EAF), this handheld controller features an ergonomic design with durable ABS construction, offering a comfortable grip and secure connection.

Equipped with a two-speed control switch, it allows for precise manual focusing—from fine adjustments to rapid focus moves—with ease and accuracy.

The 1.5-meter cable provides flexible usage, and the standard 4-pin 3.5mm audio jack ensures quick and reliable connection, enhancing operational convenience.

The EAF Hand Controller is your essential companion for astrophotography focusing.

EAF-Sensor Temperature Probe

Specifically designed for the ZWO Electronic Automatic Focuser (EAF), this temperature probe accurately monitors subtle changes in ambient temperature. By providing real-time temperature data, it works in tandem with the focuser to ensure your telescope maintains optimal focus under varying thermal conditions.

Connector Diameter: 3.5mm
Cable Length: 100cm