Coming to you from Patrick Murphy-Racey, this video shows Sony's latest autofocus system on the a9. This new tracking feature uses artificial intelligence that takes advantage of a combination of all sorts of data, including color, subject distance, brightness, and face and eye detection (for humans and animals). The system is in the new a6400 already. The system will be available in version 5.0 for the a9 (March 2019) and will also include features like Real-time Eye AF and image quality improvements. Version 3.0 for the a7 III and a7R III will be out in April 2019, bringing along with it Real-time Eye AF improvements and the ability to use it with animals. Time-lapse capabilities will also be added. As the mirrorless camera wars continue to heat up, Sony's continual autofocus advancements and other innovations should keep pressure on Canon and Nikon, particularly for those who shoot in genres that depend heavily on them. Regardless of what you shoot, it's pretty neat to watch the system in action.