ZWO EAF Mounting Solutions for Aftermarket Focusers

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EAF Mount for Helical focusers

These brackets allows you to mount a ZWO Electronic Automatic Focuser (EAF)  onto Feathertouch, GSO, ZWO, QHY, WO, Askar and Baader aftermarket  focusers. 

The ZWO supplied M4 screws are used to attach the EAF to the bracket.  A coupler is provided to connect the EAF pinion shaft to the focuser pinion shaft and is held securely with M3 set screws.  Note that the user will need to have a 1.5mm hex key for the M3 set screws (not provided).  

IMPORTANT NOTE:

As of June 2025 the EAF and EAF-Pro have a smaller pinion shaft than the original EAF (12v) and EAF-5v, as well as a USB-C connector.   Please specify which Coupler will fit your particular EAF:
Coupler-EAF12v5v  - fits the original EAF (12v) and EAF-5v
Coupler-EAFNPro  - fits the newer EAF and EAF-Pro

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Feathertouch Focuser Brackets:

EAF-FTF30 : EAF bracket for Feathertouch FTF20xx, FTF25xx, FTF30xx and FTF32xx Rack and Pinion focusers

EAF-FTF35 : EAF bracket for Feathertouch FTF35xx focusers.

EAF-FTM-SCT : EAF bracket for the Feathertouch Micro (SCTs and RASA11 v1)

EAF-FTM-RETRO : EAF bracket for the Feathertouch Micro (Retrofit Focuser ex Tak FS-128, TOA-130 etc.)

EAF-FTF20 : EAF bracket for Feathertouch FTF20xx Crayford focusers

GSO Linear Bearing and Crayford Focusers:

EAF-GSO-2LBF : EAF bracket for the GSO 2" Linear Bearing Focuser/TS Monorail.

EAF-GSO-2LBFEAF : EAF bracket for the EAF READY GSO 2" Linear Bearing Focuser/TS Monorail.

EAF-GSO-3.25LBF : EAF bracket for the GSO 3.25" Linear Bearing Focuser. New, more robust design.

EAF-GSO-2CRF-M : EAF bracket for the GSO 2" Crayford dual speed focuser

Miscellaneous Focusers:

EAF-ZWO-Helical-M42 : EAF bracket for the ZWO Helical focuser, M42

EAF-ZWOOAG-Helical : EAF bracket for the ZWO Helical focuser on OAG-L and OAG-L-M48

EAF-QHYOAG-Helical : EAF bracket for the QHYOAG S/M/L and PRO Helical focuser

EAF-BSteeltrack : EAF bracket for the Baader Diamond Steeltrack

EAF-WO-WIFD : EAF bracket for the William Optics WIFD focuser

EAF-WO-Crayford : EAF bracket for the William Optics Crayford focuser (ex. GT102)

EAF-AskarOAG-Helical : EAF bracket for the Askar OAG

EAF-PlayOneOAG-Helical : EAF bracket for the Player One OAG

EAF-OGMAOAG-Helical : EAF bracket for OGMA OAG-XL

EAF-LP2RP : EAF bracket for the Long Perng 2" Rack and Pinion focuser

Feather Touch Focuser Brackets:

If you don't see a bracket that meets your needs I would be glad to work with you to come up with a solution.

Color Note:  The coupler will be black due to the special filament used for the coupler.  The bracket can be black, red or silver.  

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