Demo: The Sony a9's Eye-Tracking Autofocus is Crazy Accurate

Sony claims the a9 is an autofocus tracking monster--its 693-point AF system performing 60 AF/AE calculations every second. But that’s not limited to regular subject tracking; as this demo video shows, the eye-tracking AF has been significantly improved as well. Sony Alpha Rumors spotted the demo, which was posted to YouTube by a Japanese camera […]