Sony A7S III camera with 4k120fps movie function costs 4,200 euros

Sony has unveiled its A7S III camera. The device will get a new 12-megapixel sensor and can record 4k videos with up to 120fps. The camera can output 16bit raw videos via the HDMI connection. The device will receive a suggested retail price of 4,200 euros.

Sony uses a full-frame bsi-cmos in the Sony A7S III. The 12-megapixel sensor has a resolution of 4240×2832 pixels and 4k recording up to 60fps uses the full width. All pixel information is recorded and processed into a video of 3840×2160 pixels. For recordings in 4k resolution at 120fps, the camera makes a 1.1x crop of the sensor to capture exact 3840×2160 pixels without having to scale.

The Sony A7S III gets a Bionz XR image processor, it is the first camera with that new version of the Bionz processor. Also new are phase detection points on the image sensor, previous cameras in the A7S series did not have that. The third iteration must therefore be able to focus more accurately. The ISO range of the sensor is 80-102400 and can be digitally expanded to 40-409600. The sensor is equipped with five-axis image stabilization and Sony promises a dynamic range of more than 15 stops when filming.

Sony equips the camera with an electronic viewfinder with 9.44 million pixels and a magnification of 0.91x. The resolution of the EVF is the highest so far in a digital camera. Competitors can find EFFs with a maximum of 5 million pixels. Furthermore, the A7S III has a screen on the back that can be folded out and tilted. It is the first time that an A7 camera has that. The LCD on the back has 1.44 million pixels.

The Sony A7S III is optimized for 4k video recording and according to Sony, the camera in 4k60fps mode can do that for more than an hour without overheating. Internal recording in 10bit with 4: 2: 2 coding is possible. This is possible in Sony’s XAVC S and XAVC HS formats, which are based on h264 and h265. with bit rates up to 280Mbit / s. There is a double card slot for SD cards or CFexpress Type A cards. Via the HDMI 2.1 connection it is possible to output raw video in 16bit. Many high-end cameras can output raw video via HDMI, but that is usually limited to 14bit.

Promo video made with Sony A7S III