Sony Alpha 7R III

Hardware Engineering Overview: Sony Alpha 7R III

The Sony Alpha 7R III is a Full Frame mirrorless camera engineered with a 42.4 MP Full Frame Exmor R BSI CMOS sensor (35.9 × 24.0 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 4K30 UHD recording capability.

Sensor & Optical Architecture

42.4 Megapixel Full Frame Exmor R BSI CMOS (35.9 × 24.0 mm) driven by the BIONZ X image engine, supporting 3:2 (Native), 4:3, 16:9, 1:1 aspect ratios.

Autofocus & Continuous Speed

399-Point Phase-Detection AF with 399 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

4K30 UHD internal recording at 8-bit 4:2:0 S-Log2/3. Features Full Cinema Log Profile Suite and 3.5mm Stereo Microphone, 3.5mm Headphone Monitor, Clean HDMI Output.

Chassis, Storage & Battery Rating

Weighs 657g in a 126.9 × 95.6 × 73.7 mm body. Features 1x SD UHS-II + 1x SD UHS-I, 3.69M-dot OLED EVF (120fps), and CIPA rated for 650 shots per full charge.