The FX3's 12.1MP Exmor R BSI CMOS sensor (10.2MP effective in video mode) is paired with a BIONZ XR processor to achieve UHD 4K video capture with internal 10-bit 4:2:2 sampling or 16-bit raw output. The sensor's BSI design heightens clarity and sensitivity, with an expandable ISO 80-409,600 range and greater-than 15-stop dynamic range for working in mixed lighting conditions. Benefitting color and tonal control, the S-Cinetone mode can be used for matching to VENICE, FX9, or FX6 sources, and there is also S-Log3/2 gamut support and 10-bit HLG for simple HDR productions. The sensor and processor also work together to greatly reduce rolling shutter, and the sensor's design incorporates a Fast Hybrid AF system for intelligent and quick focusing performance and subject tracking.