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Interlaced artifacts in 24P


Jason McKelvey

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post-1704-1097105677.jpgI had our editor do some frame grabs from some footage I shot with the 900. It was in 24P with V.RES set to INTRLCE because we don't do film-outs. I expected the frame grabs to look like film frame grabs... like a still photo. Instead, even with my subject perfectly still, there was interlace artifacts on the edge of his nose... like a jagged edge. Is this because of the V.RES setting? Will setting this to PROG make a difference? When I freeze my DVD player, it looks like a clean frame grab. Is there a way to get this type of performance out of our 900?

 

 

 

Thanks,

Jason

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Even if you shoot 24p, you're still going to have judder from the 3:2 pulldown if you capture your footage at 29.97. What I think you're looking at is simply that.

 

If you want to have completely clean stills, remove the pulldown in your edit box and work in a 24p timeline.

 

Changing to V.RES PROGRESSIVE wouldn't affect these issues at all, just potentially introduce another source of aliasing.

 

J

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