Buffer depths were great, especially with JPEGs, but the main performance hangup we experienced were buffer clearing times. The A7 III offers above-average burst speeds for a full-frame ILC - up to 10fps - and in our lab, the A7 III tested very close to this spec. Shot-to-shot times are quick and shutter lag is minimal. The result is a nimble camera with excellent speed, performance and responsiveness in most respects. So, you have a camera with a fast-reading sensor, lots of processing horsepower and a super-charged AF system.

The autofocus system, too, undergoes a lot of improvements, not only gaining way more contrast-detect AF points but also borrowing the impressively-dense 693-point focal-plane phase-detection AF system from the A9, which offers much improved focus tracking capabilities over its predecessor. The camera shares a lot of hardware and features with the high-end A9, including an image sensor that uses a front-end LSI, which among other things, helps increase readout performance.

Not only is image quality top-notch, but most of the A7 III's performance metrics are equally impressive as well.

Sony a7 iii