ZWO EAF ( Electronic Automatic Focuser) Standard Version

Article number: EAF-S
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Delivery time: Due to heavy demand and manufacturer backorders we are currently taking orders on this item - place your order now to ensure timely delivery! Your 10% deposit is fully refundable.

Product Description


The new EAF is coming soon!


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


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


Advanced Version: EAF body, flexible coupling, motor bracket, USB2.0 cable, hand controller, temperature sensor.



Size: 60mm x 50mm x 40mm


Moter: Step moter, 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

This ZWO Astronomy Cameras product is changing the game when it comes to achieving that perfect focusing for astrophotography. This tool is an electronic focuser that enables precise and dynamic focus control during sessions of planetary and deep-sky imaging.

The Standard EAF works with all capture software that is supported by the ASCOM platform. This can be added to the ASIAIR WiFi imaging and control system (sold separately) to complete the system and allow users to run their entire imaging sessions with a smartphone or tablet and can do so indoors, if they choose.


Body Design


The body of the EAF was designed in the image of the changing Airy diffraction pattern through a range of focus. It is made with an all-metal, red housing unit. This means it matches the ZWO astronomy cameras. The body includes a 12V DC 5.5mm x 2.1mm, center positive power port and a USB2.0 data port.

Standard Version


The standard version of the EAF has the EAF body, flexible coupling, a motor bracket, and a USB2.0 cable


    • Size: 60mm x 50mm x 40mm
    • Motor: Step Motor: 5,760 steps to rotate the circle
    • Power Port: 12V DC 5.5mm x 2.1mm, center positive
    • Data Port: USB2.0 port
    • Weight: 277g.
    • Capacity: 5kg
    • Material: All-metal
  • Color: Red
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