ZWO EAF Motor Focus - Electronic Automatic Focuser


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ZWO EAF Motor Focus - Electronic Automatic Focuser 

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249.0 CHF tax incl.

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ZWO EAF Motor Focus - Electronic Automatic Focuser 

Product Description

EAF ( Electronic Automatic Focuser)


Introducing the new EAF, the latest innovation from the engineers at ZWO. This electronic focuser enables precise, dynamic focus control for planetary and deep-sky imaging.


  1. Highly integrated design
  2. Support ASCOM platform and various ASCOM-compatible third-party software
  3. Support INDI
  4. Support original software such as ASIAIR and ASICAP
  5. Support automatic focusing
  6. Support handle controller and manual focusing
  7. Support temperature sensor
  8. USB HID device and drive-free
  9. Stable and durable


Standard Version: EAF body, flexible coupling, motor bracket, USB2.0 cable.

Advanced Vsrsion: EAF body, flexible coupling, motor bracket, USB2.0 cable, hand controller, temperature sensor. (Available in July. You could pruchase the standard version first, when hand controller has released, buy other accessories to upgrade)


Support list:

SkyWatcher Astrophotography Reflectors, SkyWatcher Black Diamond, SkyWatcher Dobsonians, SkyWatcher Maksutov-Newtonians.
SharpStar telescopes,
SkyRover telescopes,
TS Optics,
Astro Tech,
Feather Touch,

More focuser will be supported in the further. such as TAKAHASHI telescopes, GSO telescopes.

Recommend to use extra focuser and EAF on SCT and MCT.







Size: 59mm x 52mm x 41mm

Moter: Step moter, 35mm diameter, 5760 steps to rotate a circle.

Power port: 12V DC 5.5mm x 2.1mm, center positive

Data port: USB2.0 port

Weight: 277g

Capacity: 5kg

Connecting diagram

EAF connection

Mechanical diagram


What’s in the box:


User manual:

Comming soon!


We are working on more bracket for focusers on market.

Now, ZWO EAF bracket for Takahashi Scope is available:

Support list:

Takahashi TSA120
Takahashi FS60
Takahashi FSQ85
Takahashi FSQ106
Skywatcher Esprit 100
Skywatcher Esprit 120
Skywatcher Esprit 150
Vixen VC200L
Orion ED80T

Connecting-bracket for Takahashi Scope

packing information