The Sony a7 III is a 24MP full frame mirrorless camera that incorporates many of the features and improvements found in the a7R III. Primary among these are a BSI sensor, along with the larger capacity 'Z' battery, AF joystick and the company's impressive EyeAF feature. Its 693-point AF system offers 93% frame coverage. Continuous shooting is offered at up to 10 fps with mechanical shutter, and 5-axis in-body stabilization claims a 5.0 stop shutter speed advantage.

Video recorded at 4K/24p is taken from a 6K region of the sensor, while 30p shooting comes from a roughly 5K region with a 1.2x crop. The camera offers both S-Log2 and S-Log3 gamma curves for shooting wide dynamic range scenes or Hybrid Log Gamma for playing back directly on high dynamic range displays.

The new larger-capacity battery boasts 710 shots per charge. The a7 III uses the same 2.36m dot OLED viewfinder as its predecessor, giving a 1024 x 768 pixel view, rather than the higher-res version in the a7R III. The viewfinder is complemented by an articulated 3" 921k-dot LCD.