Sony just announced a Firmware Update for the new Sony A6400 mirrorless camera that supports Animal Eye Autofocus!! The new firmware v2.0 can be downloaded over at Sony’s website for both Windows and MacOS operating systems.
Firmware V2.00 Details:
ILCE-6400 System Software (Firmware) Update Ver. 2.00 (Mac)
306.8 MB (306,772,955 bytes)
Adds real-time Eye AF for animals NOTES:
Detecting human and animal eyes simultaneously is not supported
Depending on the environment, animal type, and the movement of the animal, eye detection may not be possible
Refer to the Help Guide for additional information on updated functions