Cloud Break Optics

Electronic Automatic Focuser - iEAF

Electronic Automatic Focuser - iEAF - Main image
$133.33 $199 In stock

Category: Astrophotography Accessories

Description

This iOptron Electronic Automatic Focuser (iEAF) is designed for both Crayford and Rack-and-Pinion focusers. It is powered by a 5V USB port. The focuser is ASCOM compatible and will work with most planetarium and imaging software. It also can be adjusted manually by pressing a button on the focuser.

Features:

  • Whisper quiet operation
  • Powerful stepper motor
  • Zero backlash
  • Built-in temperature sensor
  • USB connection to a computer
  • ASCOM compatible
  • Manual adjustment
  • Position memorizing during power off
  • Compatible to most focuser with proper mounting bracket/adapter

Specifications

Focuser Crayford or Rack-and-Pinion focuser
Driving train Stepper motor
Power/Communication USB2.0 port
Maximum payload 5 kg
Temperature Sensor Yes (Built-in)
Control ASCOM compatible or manually
Focuser speed 3 rpm
Dimensions 51 X 61 X 41mm
Weight 254g (focuser only)
Warranty One year limited
Before you pay

Check the method and total at checkout.

When it ships

Allow for processing time as well as the journey to you.

Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

View policy
If you need a refund

Keep your order number and contact the store to start.

Please contact us for the refund processing timeframe before returning an item.

View policy
Delivery costs

Review the cost for your destination and chosen service.

Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

View policy
Returning an item

Check the return conditions before sending anything back.

United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

View policy

Customer Reviews (4.4 / 5 · 5 reviews)

Matthew ★★★★★

Swapped out the manual knob on my Crayford this afternoon and the iEAF took over within minutes, zero backlash issues. The ASCOM compatibility made it plug-and-play with NINA, and being able to tweak focus from my laptop inside has completely changed my imaging nights.

Chloe ★★★★★

The USB power setup is incredibly convenient — no extra battery packs to worry about during long imaging runs. It connects seamlessly with my ASCOM setup and the motor feels precise on my Crayford focuser.

Madison ★★★★★

Finally got consistent autofocus on my telescope without the usual back-and-forth; the ASCOM compatibility made setup with my existing gear a breeze. The motor moves smoothly enough that I can dial in perfect focus for each filter.