The Sony a7S III is a full-frame mirrorless camera featuring a 12.1 MP back-illuminated Exmor R sensor and BIONZ XR image processor for incredible image quality and speed. Film makers can shoot pro quality footage at up to 4K/120p or 4K/60p without crop with fast and precise autofocus. The standard ISO range is 80-102400, which is further expandable to 40-409600 (80-409600 for movies). The Sony a7S III mirrorless camera packs a new full-frame 12.1-MP back-illuminated Exmor R sensor and 8x faster BIONZ XR processor, 759 phase-detect AF points, 4K 120p in 10-bit 4:2:2 with new codecs.