At about half the price, the Sony A7 III transforms A9 tech into a “basic full-frame model” that punches well above its weight class. It features a new back-illuminated 24.2MP sensor with 5-axis image stabilization, 4K video, and a world class autofocus system.
The ISO range of 100 – 51200 (expandable to ISO 50 – 204800 for still images) is enviable with a 15-stop dynamic range at low sensitivities, which should thrill low light enthusiasts. Meanwhile, the improved autofocus includes eye-locking to follow faces (even when the eye is obscured) with the 693-point focal-plane phase-detection AF system inherited from the A9, which covers 93% of the frame.
Another place the A7 III shines is speed. The updated image processing system captures full res shots at up to 10 fps for 177 Standard JPEG images, 89 compressed RAW images or 40 uncompressed RAW images. Plus, the high speed mode offers completely silent shooting.
With all this tech, you might expect a shorter battery life – but at 710 shots per charge, it’s actually the longest rated battery life of any mirrorless! There’s even a bunch of nice little features like a joystick to adjust autofocus points, two SD card slots, and SuperSpeed USB capabilities.