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Re: Distort- Aspect Ratio Math

COW Forums : Compression techniques

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Lara JohnstonRe: Distort- Aspect Ratio Math
by on Jan 24, 2011 at 4:43:02 pm

I think I grasp that concept, but what I can't seem to get is why the numbers -12.5, -33 and -50 work in the distort tab of FCP pro.

For example if I cut a DVCPRO HD 720p60 (960x720) clip into an NTSC timeline the aspect ratio requires a distortion of -50 to appear correct (scale at .75 or 75%). How does -50 get derived from the above numbers? Am I missing something?
Thanks,
Lara Johnston


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