New Alpha 7S III Empowers Creators with 4K 120P Video, 10-bit 4:2:2 Recording, 15+ Stop Dynamic Range, Improved AF Performance and Mor e Highly Anticipated Sony Alpha 7S III Combines Supreme Imaging Performance with Classic “S” Series Sensitivity The a7S III will be available in late September for $3499. The a7S III does not support DCI or Super 35 capture. There are too many video features to list here (our initial review has all the details), but the highlights include 10-bit 4:2:2 recording, your choice of H.264 or H.265 codecs, 16-bit Raw output at up to 60p, and support for S-Log2/3 and HLG. It has twin dual-format memory card slots, both of which can handle an SD or CFexpress Type A card. The camera has a full-size HDMI port along with headphone and mic sockets, dual-band Wi-Fi and support for USB Power Delivery. The menu system has been refined and is easier to navigate. This is Sony's first Alpha-series camera with a fully articulating LCD, and nearly everything can be operated by touch (finally).

It's also giant, with a magnification of 0.91x. The electronic viewfinder has the higher resolution we've seen yet, with 9.44 million dots. The a7S III's physical design is much like that of the a7R IV (including build quality and IBIS), with a few notable exceptions. The a7S III also have the distinction of being the first consumer camera to support the new CFexpress Type 'A' media. Sony says that color reproduction has been noticeably improved, as well.

The more-responsive autofocus system has 759 on-sensor PDAF points and offers person, eye and animal AF. Sony says that the sensor reads out twice as fast as on the a7S II, which considerably reduces rolling shutter.

The combination of the new sensor and processor allow for a native ISO range of 80-102400, which can expand to 40-409600, and the (claimed) ability to capture 15 stops of dynamic range.

The company says that this was made possible be redesigning the heat dissipation system in the camera: no fan necessary. In addition, Sony claims that the a7s III can also record up to 'at least' one hour of continuous 4K/60p footage. It includes a new 12MP BSI-CMOS sensor, the latest 'Bionz XR' processor, improved autofocus, an ultra-high resolution EVF and the ability to capture 4K/120p video. As expected, Sony has released the a7S III, its third-generation video-focused full-frame mirrorless camera.

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