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Canon C70 jittering

Started 4 months ago | Questions thread
Samuel Dilworth
Samuel Dilworth Senior Member • Posts: 1,391
Re: Canon C70 jittering
1

utisz wrote:

The other thing that I noticed is that C70 exhibits more moiré artifacts than R7 or R5 cameras, even when Digital IS is turned off. This sound absurd as C70 is using a 4K native resolution and not a line skipping or downscaling method like the above-mentioned cameras. (Yes, I am always using my C70 in its native resolution.)

I have a Panasonic GH5S that, like your C70, has a 4K native resolution. It too has more moiré than I would expect, sometimes more than non-video-specialist cameras that record more pixels and downsample (e.g. my Olympus E-M5 Mark III). I think it is caused mainly by the impossibility of making perfect optical low-pass filters (anti-aliasing filters) and the need to preserve as much detail as possible (in other words, the OLPF cannot be strong or other users would complain the picture is soft).

Of course there are big benefits to the C70 and GH5S having fewer pixels, mainly higher frame rates without throwing pixels away and much less rolling-shutter artefacts (because the readout speed is higher).

Only my copy is affected, or this is a common phenomenon with the C70?

I don’t have the C70 but doubt there is anything wrong with yours from your description. Digital IS causes artefacts, and (separately from the digital IS problem) moiré is sometimes unavoidable because of low pixel count and weak / non-cliff-like OLPF.

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