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video level changes in viewer & canvas with 1080p clips
I have a project I’m currently editing. It was shot on HDCam @ 1080p and 23.98 fps. It was captured thru a Kona 3 10bit uncompressed using the 1080p/23.98 easy setup.
When I play the clips back in either the viewer or canvas, the level of the video will change from what it is while sitting on a still frame. When I play the clip the video level will increase, mostly with what looks like a rise in the black levels. When I stop playback, it will drop back down. The output from the Kona 3 to my monitor, however, stays at the same level. No change whether on a still frame of while playing. It only changes on the viewer/canvas screens.
Running FCP 5.1 on a Quad G5/OS 10.4. Media playing back from a Huge raid. Kona 3 for I/O to G5. Latest Kona 3 drivers. Media brought in via HD SDI.It isn’t a huge deal but is a bit annoying when trying to do color grading. Anyone have any ideas on why it might be doing this?
I’ve also crossposted this in the Final Cut forum.
Tom -
1 Reply
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First, of all you shouldn’t be grading using your canvas. Second, that’s that whole quicktime gamma issue that Apple has so pleasantly provided in their quicktime codecs for better (read brighter) display on computer monitors.
Use your broadcast monitor and a scope to do your grading.
Jeremy
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