Get sensitivity and speed in stunning 4K for your stills and videos with the Sony Alpha 7S III full-frame mirrorless camera (body only). With a powerful BIONZ XR processing engine, its 12.1MP full-frame Exmor R CMOS sensor delivers ultra-clean images up to ISO 409,600, with more than 15 stops of dynamic range and fast hybrid autofocus with 759 phase detection AF points.