Sony A7R III specifications
Sensor: 42.4MP full frame Exmor R CMOS, 35.9 x 24.0mm
Focal length conversion: 1x
Memory: 2x SD/SDHC/SDXC, inc 1x UHS II
Viewfinder: Quad-VGA OLED, 3.69 million dots
Max video resolution: 4K UHD at 30, 24fps
ISO range: 100-32,000, expandable to 50-102,400
Autofocus points: 399-point phase detection, 425-point contrast detection
Max burst: 10fps (76 compressed raw)
Screen: 3-inch tilting touchscreen, 1,440k dots
Shutter speeds: 30-⅛,000 sec, bulb
Weight: 675g (body only, with battery and memory card)
Dimensions: 126.9 x 95.6 x 73.7mm
Power supply: NP-FZ100 lithium-ion (supplied)
Sony A7R III lab tests
We matched the A7R III against three top professional rivals – the Canon EOS-1D X II, Nikon D850 and Sony’s own A99 II. In our colour error test, the A7R III came out in the middle of the pack with a good result.
Raw signal-to-noise ratio
The noise results mirrored the resolution of these four cameras. With the fewest pixels, the Canon produced least noise, while the 46-megapixel Nikon was marginally the noisiest.
Raw dynamic range
Here again the Canon showed a small advantage, with the Nikon D850 in second place. The A7R III’s dynamic range performance proved good in our lab tests, but not quite the best.