Currency: EUR

EAF Electronic Automatic Focuser

ZWO Optics

ZWO EAF Electronic Automatic Focuser

Estimated delivery time 3-18 days

Product description

Introducing 5V EAF, this electronic focuser, like its previous version, enables precise, dynamic focus control for planetary and deep-sky imaging, while only connected with 5V USB.

Compared to its old version, the main change of 5V EAF is to remove the 12V power supply port. Now you can directly connect it to your camera, laptop or ASIAIR PRO via the USB 2.0 port & cable for both data transmission and power supply. This would not only make the cable management much easier, also effectively reduce the supply pressure.

The innovative decorative pattern on the EAF is inspired by the changes of Airy disk during focusing and the focusing curve, which makes it clear at a glance how this focuser works.


  • Highly integrated design
  • Support for ASCOM platform and various ASCOM-compatible third-party software
  • Support for INDI
  • Support for ZWO software such as ASIAIR and ASIStudio
  • Support for automatic focusing
  • Support for a hand controller and manual focusing
  • Support for a temperature sensor
  • USB HID device and drive-free
  • Stable and durable

Supported focusers:

  • Sky-Watcher: Newtonians, Black Diamond series, Dobsonians, Maksutov-Newtonians
  • SharpStar telescopes
  • SkyRover telescopes
  • TS Optics
  • Astro-Tech
  • Feather Touch

The following accessories are available for the EAF:

      Product details

      Technical Specifications

      • Size: 59mm x 52mm x 41mm
      • Motor: Stepper motor, 35mm diameter, 7.5° step angle
      • Reduction ratio: 120
      • Power/Data port: USB2.0 port, Type-B
      • Weight: 277g
      • Capacity: 5kg

      Shipping costs

      15,90 €
      European delivery 2-5 days.
      PostNord Parcel locker
      5,90 €
      PostNord Home deliver
      19,00 €
      Environmentally friendly delivery to your door at the agreed time. Trackable deliveries in real time even in the evenings in the biggest cities. Change your delivery as required.
      UPS Standard
      14,90 €
      Delivery to Europe in 2 to 5 days.
      5,90 €
      12,90 €















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