The Sony a7S III remains the low-light benchmark of the Alpha system, engineered from the ground up for professional video. Its 12.1MP back-illuminated full-frame Exmor R sensor pairs with the BIONZ XR processor to record UHD 4K at up to 120p and Full HD at up to 240p, all with internal 10-bit 4:2:2 sampling, full pixel readout, and no recording time limit. Fifteen-plus stops of dynamic range and an ISO ceiling of 409,600 let it see cleanly into near-darkness where other cameras give up.
Fast Hybrid AF with 759 phase-detection points tracks subjects reliably even in extreme low light, while the class-leading 9.44 million-dot OLED viewfinder and side-opening vari-angle touchscreen make composition effortless from any position. Dual slots each accept CFexpress Type A or SD UHS-II cards, 16-bit RAW output is available over the full-size HDMI port, and 5-axis in-body stabilization steadies handheld work. A heat-dissipating body structure keeps long takes rolling without interruption.
Technical Specifications:
- Sensor: 12.1MP Full-Frame Exmor R BSI CMOS
- Processor: BIONZ XR
- Video Recording: UHD 4K up to 120p, FHD up to 240p, 10-bit 4:2:2
- Dynamic Range: 15+ Stops
- ISO Range: 80-102,400 (Expandable to 40-409,600)
- Autofocus: 759-Point Fast Hybrid AF
- Viewfinder: 9.44m-Dot QXGA OLED EVF
- Monitor: 3.0″ Side-Opening Vari-Angle Touchscreen
- Stabilization: 5-Axis In-Body Image Stabilization
- Media: 2x CFexpress Type A / SD UHS-II slots
- Output: 16-Bit RAW via Full-Size HDMI
