Video stills of test scene

The camera's DCI 4K footage is very detailed: more so than the comparable footage taken from its Super35 region. The difference is small though which means (noise differences from the use of a smaller region and any reduction in exposure aside) its 60p footage will look very similar if you cut between the two.

Much of the camera's footage is softer and seemingly less detailed than some of its more mass-market rivals. Partly as a result of less sharpening being applied and partly because the camera has a low-pass filter that should eliminate the faux-detail that comes with aliasing, giving a smoother, more natural result.

There's always the option to shoot in 5.9K mode if you have a workflow that can retain more of that captured detail into your final footage.

The camera's full-frame 1080 footage is not quite as impressive as its other modes, so you may be better off shooting 4K and downsampling. This appears to be a slight step back from the GH5, which has less overt aliasing.

Rolling shutter measurements for key video modes

23.98p 29.97p 59.94p
Full-width DCI 24.2ms 20.2ms -
Full-width UHD 25.7ms 21.2ms -
Super35 13.8ms 13.8ms 13.8ms
5.9K (16:9) 25.2ms 20.9ms -
5.4K (3:2) - 22.7ms*
[20.3ms / 13.7ms]
-
'6K' (3:2) 29.4ms*
[24.8ms / 16.0ms]
- -
*Note that the 5.4K and 6K figures are higher because they scan a greater height of the sensor (so it takes longer to scan down the whole frame). The numbers in brackets are for a 16:9 crop and a 2160-pixel high crop taken from the footage, respectively.

Most of these numbers are workable, rather than being particularly impressive. Rolling shutter figures above 20ms are high enough that you'll have to pay a bit more attention to how you move the camera (it's enough to cause occasional IS/rolling shutter jello effects in some situations). The sub 15ms figures for the Super35 region are very good, though, so it may be worth switching to crop mode is situations where there's fast subject or camera motion.

Dual Native ISO

Samples taken using full-width DCI 23.97p, 400Mbps All-I, to minimize the effects of compression on the camera's output.

S1H mid and shadow tones in V-Log mode. ISO 640 (low gain base) on top row, ISO 4000 (high gain base) below.

We shot a dynamic range test chart at both the low and high base ISOs (640 and 4000 when in V-Log mode). As you might expect, the results from the higher ISO step are a little noisier in the shadows, but for the most part, they're very good. The usable DR is going to be a little lower than at ISO 640, but only by perhaps 2/3EV.

When watching the footage this noise would be slightly more apparent, as it changes frame-to-frame. Of course, in lower light situations, this slight loss of DR is more than worth it: an ISO 4000 mode without the additional gain step would be even noisier.