The second generation of speed, the Sony Alpha a9 II takes the impressive feature-set of its predecessor and adds enhanced connectivity, a refined body design, and even quicker performance. Utilizing the proven 24.2MP full-frame Exmor RS BSI stacked CMOS sensor and an updated BIONZ X processor, the a9 II sports especially quick and responsive capabilities. Up to 20 fps shooting is possible with a silent electronic shutter or up to 10 fps with a mechanical shutter is supported, along with a wide sensitivity range that reaches up to an expanded ISO 204800. The sensor's design also incorporates a 693-point phase-detection autofocus system, which offers intelligent subject tracking and Real-time Eye AF to ensure critical focus on moving subjects. The BIONZ X also performs up to 60 AF/AE functions per second to go along with the 20 fps shooting for reliable results in quickly changing situations. In addition to stills, UHD 4K video recording is supported at up to 30 fps and Quick and Slow Motion recording is also available. Additionally, 5-axis SteadyShot INSIDE sensor-shift image stabilization is available, too, which minimizes the appearance of camera shake by up to 5.5 stops.