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Until May 2nd, 2025, orders under US$800 will not incur any duties or taxes upon delivery. Please note that orders under US$800 crossing the Canada-USA border after this date will be subject to duties. They will be billed by the carrier, and you will be responsible to pay them. Prioritize ordering items that are in stock!
Until May 2nd, 2025, orders under US$800 will not incur any duties or taxes upon delivery. Please note that orders under US$800 crossing the Canada-USA border after this date will be subject to duties. They will be billed by the carrier, and you will be responsible to pay them. Prioritize ordering items that are in stock!
ZWO EAF-5V - Electronic Automatic Focuser

ZWO EAF-5V - Electronic Automatic Focuser

by ZWO
$149.00 USD - $149.00 USD
$149.00 USD - $149.00 USD
$149.00 USD
$149.00 USD - $149.00 USD
$149.00 USD
  • Size of 59mm x 52mm x 41mm
  • Step motor has 35mm diameter and 7.5deg step angle
  • Reduction Ratio with 120
  • Power/Data port uses USB2.0 port, Type-B
  • Weight of 277g
  • Capacity of 5kg
Availability:
Backordered
Contact us to know when we will receive our next ones!

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More information

  • ZWO EAF-5V - Electronic Automatic Focuser - Overview

    The ZWO 5V EAF brings a new level of convenience and functionality to astrophotography. With its ability to connect directly to a 5V USB port, this advanced electronic focuser eliminates the need for a 12V power supply while offering precise and dynamic focus control for planetary and deep-sky imaging.

    ZWO EAF-5V - Electronic Automatic Focuser - Highly Integrated Design

    Highly Integrated Design

    Supports ASCOM platform and various third-party software compatible with ASCOM.

    Fully compatible with INDI and original software like ASIAIR and ASIStudio.

    Effortless Power and Data Connection

    Operates via USB 2.0, providing both data transmission and power supply through a single cable.

    Simplifies cable management and reduces the need for extra power outlets.

    Versatile Focusing Options

    Supports automatic focusing for deep-sky imaging.

    Compatible with manual focusing and handle controllers.

    Temperature Sensor Support

    Ensures precise focus adjustments based on temperature variations (advanced version).

    Driver-Free USB HID Device

    Easy setup and compatibility without the need for additional drivers.

    Stable and Durable Build

    Engineered for long-term reliability, even in challenging astrophotography conditions.

    Innovative Design

    The decorative pattern on the EAF cover visually represents the changes in the Airy disk during focusing, providing an intuitive explanation of how the EAF achieves optimal focus.

    Compact and lightweight design for portability and ease of use.

    ZWO EAF-5V - Electronic Automatic Focuser - Wide Telescope Compatibility

    There are two variants of the 5V EAF

    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.

    You could purchase the standard version first, and then buy other accessories to upgrade.

    Wide Telescope Compatibility

    Compatible with numerous telescope brands and models, including:

    • SkyWatcher: Astrophotography Reflectors, Black Diamond, Dobsonians, Maksutov-Newtonians
    • SharpStar Telescopes
    • SkyRover Telescopes
    • TS Optics
    • Astro Tech
    • Feather Touch

    Note: Compatibility may vary by model. Check the official ZWO EAF Compatible Focuser List for detailed support and connection methods.

    ZWO EAF-5V - Electronic Automatic Focuser - Wide Telescope Compatibility

Customer Reviews

Based on 3 reviews
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d
denis mainville
Très bon produit et facile a installer

C'est mon 2eme autofocus de la marque ZWO. Facile à installer Et fonctionne très bien et même par temps froid.
Et plein de vidéo sur YouTube

W
Winston Koke
Zwo EAF 5V

I bought this on Feb 20, 2025. The EAF works as advertised. It came with many brackets needed to apply it to my Askar 71F. Works seamless with my Asiair Plus. David Astro shipped the same day bought, and received with no issues. Great job David Astro, will be purchasing more items in future. Recommend

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C
Chris

Good product from ZWO…works as it should

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