Sony's camera that made full-frame mirrorless mainstream — 24.2MP, 693-point AF, outstanding value.
The Sony A7 III (2018) is the camera that made full-frame mirrorless mainstream. Its combination of 24.2MP BSI sensor, 693-point phase-detect AF, 5-axis IBIS, 4K 30p video, and dual SD card slots at a mid-range price created a new benchmark that forced Canon and Nikon to accelerate their mirrorless development.
Excellent image quality with outstanding dynamic range. 693-point AF covers 93% of the frame with Eye AF for humans and animals. 10fps burst. 4K 30p with full pixel readout. IBIS 5-axis stabilisation. 710-shot battery life — excellent for mirrorless.
Sony E-mount. Dual SD card slots (one UHS-II). 3-inch tilting touchscreen. HDMI and USB-C. Wi-Fi and Bluetooth. 650g body. Weather sealed magnesium alloy body.
Very common on the used market at attractive prices. Check shutter count and test AF accuracy. The A7 IV improved resolution to 33MP and added real-time tracking. The A7 III remains outstanding value — one of the best used camera purchases available.