The Sony a7R Mark III can shoot UHD 4K video at 24 and 30p using the full width of its image sensor or over-sampled footage using a Super 35 crop. We had a quick moment to shoot sample clips while at a Sony-sponsored shooting event earlier this week in New York City. All the clips were shot hand-held, using the camera's tracking AF function and the new 24-105mm F4 lens.

The first clip was shot in UHD 4K/24p at the camera's highest bit rate using the full sensor. You'll notice the tracking jumps off the subject midway through the clip, only to re-acquire toward the very end. You can download the clip here.

The next clip was shot UHD 4K/30p using the Super 35 crop mode (also hand-held, using tracking). In this mode, the camera shoots using a 5176 x 2924 pixel region and down-samples it to produce highly detailed 3840 x 2160 UHD 4K footage. In theory, this footage should look better than the full frame footage. You can download the clip here.

The final clip above was also shot in UHD 4K/30p, but this time Full Frame for the sake of comparison. You can download it here. We'd expect the difference between the quality of the clips to be exaggerated in lower light, where the Super 35 mode is actually using more of the sensor, even though the full frame mode is taking its footage from a more dispersed area.

For more out-of-camera samples, check out our Sony a7R III sample image gallery.