Sony Alpha 7S III

Hardware Engineering Overview: Sony Alpha 7S III

The Sony Alpha 7S III is a Full Frame mirrorless camera engineered with a 12.1 MP Full Frame Exmor R BSI CMOS sensor (35.6 × 23.8 mm) and native Sony E lens mount. Designed for demanding still and motion capture workflows, it delivers up to 10 fps burst shooting with 5.5 stops of 5-axis IBIS and 4K120 / 16-bit RAW HDMI recording capability.

Sensor & Optical Architecture

12.1 Megapixel Full Frame Exmor R BSI CMOS (35.6 × 23.8 mm) driven by the Dual BIONZ XR image engine, supporting 3:2 (Native), 4:3, 16:9, 1:1 aspect ratios.

Autofocus & Continuous Speed

759-Point Phase-Detection AF with 759 phase-detect points. Captures 10 fps burst speed with Deep Learning Subject Recognition (Human, Animals, Vehicles, Aircraft).

In-Body Image Stabilization

5-axis sensor-shift stabilization providing up to 5.5 stops CIPA handshake compensation.

Video & Motion Capabilities

4K120 / 16-bit RAW HDMI internal recording at 10-bit 4:2:2 S-Log3 / S-Cinetone. Features Full Cinema Log Profile Suite and 3.5mm Stereo Microphone, 3.5mm Headphone Monitor, Clean HDMI Output.

Chassis, Storage & Battery Rating

Weighs 699g in a 128.9 × 96.9 × 80.8 mm body. Features Dual CFexpress Type A / SD UHS-II, 9.44M-dot OLED EVF (120fps), and CIPA rated for 600 shots per full charge.