Sony's new a7S III brings 4K/120p video capture, extended shooting and improved AF

As expected, Sony has released the a7S III, its third-generation video-focused full-frame mirrorless camera. It includes a new 12MP BSI-CMOS sensor, the latest 'Bionz XR' processor, improved autofocus, an ultra-high resolution EVF and the ability to capture 4K/120p video. In addition, Sony claims that the a7s III can also record up to 'at least' one hour of continuous 4K/60p footage. The company says that this was made possible be redesigning the heat dissipation system in the camera: no...