Sony have announced the a7 III, an update to the popular 24MP a7 II, incorporating many of the improvements recently seen on the a7R III and flagship a9.
The camera features a newly developed back illuminated 24.2MP Exmor CMOS sensor boasting a dynamic range of up to 15 stops and an increased ISO range of 100-51,200 (expandable to 50-204,800).
The AF system has been greatly improved over the previous model, now offering 693 phase-detection AF points which cover 93% of the image area, making it ideal for accurately tracking a moving subject. In addition, the 5-axis optical in-body image stabilisation allows for a five stop shutter speed advantage.
Continuous shooting speed has also been improved over the a7 II’s 5fps, and has now doubled to 10fps, with a buffer capable of shooting 89 RAW/177 JPEG images with full AF & auto exposure.
For videographers, the A7 Mark III is capable of 4K (3840 x 2160px) video recording across the entire width of its image sensor. Full pixel readout (no pixel binning) can be achieved in video mode, collecting around 2.4x the data needed for 4K movies.
The camera supports S-Log2 and S-Log3, alongside Gamma Display Assist, Proxy Recording and the Zebra pattern function. Full HD video can be recorded at 120 fps (100 Mbps).
A dual SD card slot provides various storage options including the capture of separate RAW and JPEG files, and one of the slots supports UHS-II type SD cards. Alongside Wi-Fi, the a7 III has a SuperSpeed USB Type-C terminal for faster image transfer during tethered shooting.
The a7 III will be available from April with the price to be confirmed, but expected to be around £2000 for the body only.
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