Brand: ZWO

ZWO EAF Pro Wireless Electronic Automatic Focuser (ZWO-EAF-PRO)

ZWO EAF-PRO

Brand: ZWO

ZWO EAF Pro Wireless Electronic Automatic Focuser (ZWO-EAF-PRO)

ZWO EAF-PRO

ZWO EAF Pro - The Next-Generation Electronic Automatic Focuser

  • Upgraded Universal Type-C Interface for faster, more stable connections
  • Micron-Level Precision Focusing for ultra-sharp, consistent focus across all your shots
  • 5 kg (11.02 lbs) High Load Capacity to support larger, heavier setups
  • Built-In Focus Adjustment Knob for manual fine-tuning when needed
  • Bluetooth Connectivity for seamless wireless control from your mobile device
  • Built-in Battery Power Supply for reliable, independent operation without external power sources

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Why we love the ZWO EAF Pro Wireless Electronic Automatic Focuser (ZWO-EAF-PRO)

The ZWO EAF Pro (ZWO EAF-PRO) is the perfect tool for automating the focus of your telescope, whether you're capturing planetary images or deep-sky astrophotography. With the upgraded Universal Type-C Interface and Bluetooth connectivity, the EAF Pro offers a seamless connection to your imaging setup, while providing precise control over your focus adjustments. Powered by a built-in battery, it ensures reliable performance without the need for an external power supply.

With micron-level precision focusing and a 5 kg (11.02 lbs) high load capacity, the EAF Pro is designed to handle even the heaviest optical tubes with ease, giving you rock-solid focus for both high-resolution planetary imaging and deep-sky photography. The built-in focus adjustment knob allows for manual fine-tuning when needed, and it can also be integrated with other ZWO products, such as the ASIAIR, to give you full control via your smartphone.

Ideal for both beginners and seasoned astrophotographers, the EAF Pro offers a level of precision and flexibility that makes it an essential part of any advanced imaging system.  

Recommended Accessories

The EAF has a few accessories available for it.  The three that we really like pairing it with are:

1. The EAF Hand Controller will allow you to remotely adjust the focus of your telescope.

2. The Temperature Sensor for the ZWO EAF lets you automatically refocus based on changes in temperature. 

3. The ZWO ASIAIR isn't specifically an accessory for the EAF, but it does allow for easy integration and management of the EAF in your imaging system.  

These accessories can help you get the very best out of the ZWO EAF.

Product Description

ZWO EAF PRO - The Professional's Electronic Automatic Focuser

The Next Generation in ZWO's Electronic Automatic Focuser Lineup

The ZWO EAF Pro is the next-generation Electronic Automatic Focuser, designed to take your astrophotography experience to the next level. Whether you're capturing high-resolution planetary images or deep-sky wonders, the EAF Pro ensures precise, automated focusing for sharper, more detailed images with ease. With a sleek new design and cutting-edge upgrades, this focuser combines the best features of the original ZWO EAF while integrating wireless functionality—perfect for use with ZWO Air Cameras to eliminate even more cables from your astrophotography setup, providing a cleaner and more efficient workflow.

Key Upgrades:

While the EAF Pro builds upon the trusted foundation of the original EAF, it introduces several key upgrades to enhance your astrophotography workflow:

  • Upgraded Universal Type-C Interface: Enjoy faster, more stable connections to modern devices with the new universal Type-C interface. This makes setup simpler and more reliable, especially when connecting to laptops, tablets, or telescopes
  • Micron-Level Precision Focusing: Achieve pinpoint focusing accuracy with micron-level precision, ensuring sharp, detailed images even at high magnifications or during long exposure astrophotography
  • 5 kg (11.02 lbs) High Load Capacity: The EAF Pro supports heavier setups, including larger telescopes, cameras, and filter wheels, with an impressive 5 kg (11.02 lbs) load capacity. This allows for consistent, stable operation, even under substantial gear weight
  • Built-in Focus Adjustment Knob: For those times when manual control is needed, the integrated focus adjustment knob offers tactile, easy-to-use manual focusing, providing flexibility during setup or troubleshooting
  • Bluetooth Connectivity: With Bluetooth support, you can now control your focuser wirelessly from your smartphone, tablet, or computer, allowing for more convenience and mobility during your imaging sessions
  • Built-in Battery Power Supply: The built-in battery offers true portability by powering the EAF Pro without the need for external power cables. Focus on your imaging without worrying about power sources, especially during remote or field setups

These upgrades deliver unmatched precision, efficiency, and reliability, ensuring the EAF Pro is the ideal tool for the most demanding astrophotography setups.

Compatibility Note: When used with ASIAIR, the EAF Pro is compatible with the ASIAIR Plus (RK version) and the entire ASIAIR camera lineup

It is not compatible with the following models:

  • ASIAIR (1st generation, Raspberry Pi 4)
  • ASIAIR Pro
  • ASIAIR Mini
  • ASIAIR Plus (CM4 version)*

*Note: There are two versions of the ASIAIR Plus. You can identify the version by the IC number on the device: Suffix “ASIAIRPLUS” indicates the RK version (compatible) Suffix “RPICM4” indicates the CM4 version (not compatible)

What's in the Box

  • EAF Pro Body
  • Motor Bracket
  • 2m USB-C to USB-A Cable
  • 5x Spacers
  • 4x M4*8 Screw (+ M4 Hex Wrench)
  • 2x M5*10 Screw (+ M5 Hex Wrench)
  • 5-4mm/5-5mm/5-6mm/5-7mm Flexible Couplers
  • 2mm/3mm Hex Wrench
  • Quick Start Guide

Specifications

Model EAFN EAF Pro
Dimensions 41x52x70.3mm 41x52x73.4mm
Weight 215g 258g
Payload 5.0kg 5.0kg
Motor Specifications Stepper Motor | Step Angle 7.5° | Reduction Ratio 1:128
Resolution 2.812μm per step 2.812μm per step
Communication Method USB Type-C USB Type-C | Bluetooth
Power Supply USB Type-C (5V 500mA) USB Type-C (5V 500mA) | Built-In Battery
Battery No Yes
Focus Button No Yes
Power Switch No Yes
Status Indicator Light No Yes
Temperature Sensor &
Hand Controller Interface
Yes Yes
Software ZWO ASIAIR App | ZWO ASIStudio | ASCOM Platform & Various ASCOM-Compatible Third-Party Software

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