TheAlpha A7 IIIis Sony’s latest full-frame mirrorless camera, and sits at the bottom of its full-frame lineup below the 42.2MP
It replaces theAlpha A7 IIthat was launched back in 2014, and Sony has lavished much of its latest tech on the Alpha A7 III, aiming to redefine what we should expect from an entry-level full-frame camera.
While the resolution remains the same, the new sensor in the Alpha A7 III features a back-illuminated design that delivers a much faster readout speed than the older model. Coupled with the latest BIONZ X image processor, the new A7 III is capable of shooting at 10fps (double that of the A7 II), with the option to use the silent shutter at this speed as well.
Not only that, but the buffer has also been greatly improved, and is now capable of shooting 177 consecutive JPEG images before the camera needs to take a breather, compared to 52 on the A7 II, while raw performance is still impressive at 89 shots.
The sensitivity range has also been greatly improved, now with an extended ISO ceiling of 204,800 – the same as the Alpha A9, and two stops better than the A7 II’s 51,200 limit. Sony also reckons it’s managed to achieve adynamic rangeof 15 stops.
693-point AF system
We didn’t expect to see this on Sony’s ‘basic’ full-frame camera, but the Alpha A7 III gets the same 693-point AF system that’s impressed us on the Alpha A9. It’s a massive improvement over the 117-point arrangement on the Alpha A7 II, while the coverage also matches that of the A9 at 93%. Sony’s clever Eye AF functionality also features, while the system is capable of focusing in light levels as low as -3EV.
To help keep things steady, the Alpha A7 III gets Sony’s latest 5-axis built-in image stabilization system, offering up to five stops of compensation