We're on the ground in New York where Sony has just unveiled the a7R IV. With a whopping 61MP sensor and a laundry list of impressive specifications there's a lot to take a look at, but we wanted to take a quick first look at one new feature in particular: real-time Eye AF during video recording. Take a look at how Face Detection and Eye AF keep up during video recording in the short clip above.

See all of our Sony a7R IV launch coverage