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Panasonic GH4: Video Coverage/Crop and Still Image Quality from Raw or JPEG vs MOV Frames

In my review of the Panasonic GH4, I discuss the crop factor for 4K video as well as the relative quality of still frames taken from the MOV file versus JPEG and raw-derived still frames. Just how good are still images from 4K video MOV files? Or put another way, how amazing is 4K video?

I chose a static subject in order to evaluate peak quality.

Panasonic GH4: Still Image Coverage and Quality vs Video

It brings back memories from years ago of taking stills from a Sony 3-chip camcorder. At 640 X 480 , the difference is massive vs 4K video. Game changingly different.

4K video as cropped from native sensor — Panasonic GH4

James K writes:

This explanation is exactly what is needed in video. Clear and no mumbo jumbo.

DIGLLOYD: a still photo derived from a video clip gives a good “read” on the video quality; if it looks good as a still image, then at 24 fps or faster video it has to look great.

While I’m still waiting for a 4K display to see a full 4K image in all its moving glory, it’s possible to play the 4K video clips at actual pixels (filling the screen but seeing only the 2880 X 1800 center portion on my MBP display), to judge the results, which to me cross a key threshold for believability in video.

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