- 12MP Full-Frame Exmor R BSI CMOS Sensor
- UHD 4K 120p Video, 10-Bit 4:2:2 Internal
- 16-Bit Raw Output, HLG & S-Cinetone
- 759-Point Fast Hybrid AF
- 9.44m-Dot QXGA OLED EVF
- 3.0″ 1.44m-Dot Vari-Angle Touchscreen
- 5-Axis SteadyShot Image Stabilization
- Extended ISO 40-409600, 10 fps Shooting
- Dual CFexpress Type A/SD Card Slots
Video is the primary application of the a7S III, and improvements to the sensor and processor enable faster readout speeds and greatly reduced rolling shutter, along with high-bitrate internal recording, 16-bit raw output via the full-size HDMI port, and flexible control over motion with variable frame rate selection. The a7S III also does away with recording time limits and incorporates HLG for direct HDR production as well as S-Log2/S-Log3 gamma profiles for advanced HDR production with editing.
The updated sensor design also brings improved autofocus performance via 759 phase-detection points, which offer intelligent subject tracking and Real-time Eye AF to ensure critical focus on moving subjects in all recording modes. The sensor and BIONZ XR processor also facilitate impressive sensitivity, with an expanded range from ISO 40-409600, as well as fast 10 fps continuous shooting for up to 1000 consecutive raw frames. 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.