About The Alpha a6400 Mirrorless CameraFor photography enthusiasts and professional videographers, the Sony Alpha a6400 Mirrorless Camera is a compact, lightweight, and high-tech device that brings Sony's most advanced technologies to an Aps-c format. This sleek and stylish camera boasts the world's fastest autofocus (AF) acquisition of 0.02 seconds, making it a powerful tool for capturing decisive moments.The a6400 is equipped with the new advanced "Real-time Eye AF" and "Real-time Tracking" capabilities, ensuring even the fastest moving subjects can be tracked and captured with ease. It features 425 phase-detection AF points and 425 contrast-detection AF points that cover approximately 84% of the image area, providing a high-speed, high-performance tracking AF system.