I would really like to see a video comparison of the new M50 from Canon and the Lumix G85. With Canon's great focusing capabilities and the larger C-MOS sensor, I wonder if the M50 will give the G85 some competition. The only limitation I've seen on the M50 so far is lack of some video formats and a limited recording time of 30 minutes.
The G85 is the camera I would have bought if it was available when I bought a GX8. The G85 has better stabilization when shooting 4K at 30fps.
A better comparison might be to the GH5 or (newest) G9 because they both shoot 4K at 60fps with 5 axis "dual" lens and body stabilization.
I found this suggesting the 4K capability is weakened by a large crop factor and restricted focusing.
"It will disappoint a large number of ...content creators ... because 4K will be virtually unusable ... on the M50. It [has] a 2.56x crop, making a wide angle 18mm EOS M or EF-S lens a 46mm equivalent portrait lens in terms of field of view. ...[Video] shooters also need the absolute best in video AF technology, which Canon decided not to bother with in 4K on the M50. There is NO Dual Pixel AF in 4K mode.....In fact in 4K, the camera uses a dated contract detect based AF system. Dual Pixel AF is only available in the poor quality 1080p mode like the predecessors.
Canon wants $900 for the camera with the very most basic kit lens (15-45mm). In full frame equivalent DOF and FOV terms this lens becomes a 38-115mm F9-16! It’s hardly the Super 35mm look offered by other manufacturers in 4K, with much better autofocus.
That’s not the end of the bad news – the battery life rates as one of the worst on record for a modern mirrorless camera. It has actually gone DOWN compared to the EOS M6 and M5 by approximately 20% due to the new processor not being efficient."
Remember 4K video is only 2160 x 3840, and it is 3:2 aspect ratio so some cropping is going to happen. It is probably more extreme on the FF. To get an uncropped FF video I think would require 6K or 8K video (I'm just guessing here). I bought a used Nikon Coolpix B700 pretty much for the 4K video and long zoom. It has gvien me my best moon shots (better than either the D7000 or the Nikon 1 J1 with a 300mm zoom lens), and the video is pretty stunning compared to 1080P.
Bottom line, The Canon 4k video may be far better than other cameras. There's no way to know without examining single frames.
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