iOptron iEAF Focuser

The iEAF is designed to be compatible with most standard Crayford and Rack-and-Pinion focusers. However, you should verify that your specific focuser has a compatible shaft size and mounting configuration before purchasing.

No, the iEAF is powered directly through its USB 2.0 connection, which also handles data communication. This helps keep your cable management clean and reduces the number of power bricks needed at your telescope.

As ambient temperatures drop throughout the night, telescope materials expand and contract, causing focus to shift. The built-in sensor detects these changes and allows your software to trigger automatic refocusing, ensuring your images stay sharp during long exposures.

Yes, the unit includes physical manual control buttons on the device itself. This allows you to make quick, tactile adjustments without needing to open your computer software.

No, the iEAF features internal memory that retains your current position settings even after a power cycle. This means you don't have to recalibrate your focus position every time you set up your rig.

The iEAF is rated for a maximum payload of 11 lbs. While it is lightweight itself, it is robust enough to handle most standard imaging trains, including heavy CCD or CMOS cameras and filter wheels.