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Cadence conundrum: can’t seem to pass through 2:3
Here’s the problem: (cross posted elsewhere)
We have a documentary that needs a “film out”. Original shot on DV 24p.
Editing was done @ 29.97 through out. Bumped up to HDCAM for color correct… 2:3 cadence was still present. Had to make changes, so redigitized the color corrected HDCAM master (1080i). Now, we can’tseem to retain the original 2:3 cadence. We’re getting all kinds of weirdness from 2224 to 2222. I’m totally confused.
We’re on FCP 6.01 using a Kona 3 card to go out to an HDCAM SR deck.
All of the cadence settings in either FCP or the Kona, seem to indicate a variety of cadence setting, but what I really want is to NOT change anything. I just want to pass through what I have.
I would appreciate any insight into this problem. Thank you.
Mark
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4 Replies
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I don’t see how this is possible if you captured 1080i @ 29.97 as the cadence will be the same as your dv master @ 29.97. If you are seeing breaks in the cadence, that is normal as you are not editing 23.98, you are editing 29.97 and if you cut in the middle of the cadence, then the next shot is happening in a different part of the cadence, your 3:2 cadence will not be consistent across the tape. Does that make sense?
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Jeremy,
That’s what I’m not seeing. I expect the 2:3 cadence already committed to tape to stay that way. It doesn’t. I only seem to be able to get 2:2:2:4 out of FCP which is NOT good for a film out.
The 2:3 cadence present on the 29.97 clips is disappearing somewhere in my workflow. I don’t do this very often, so I welcome the input from anyone who deals with cadence issues on a daily basis.
Thanks.
Mark
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Solved it!
We went from a 1080 capture to a 720p timeline to do aspect ratio coversion. That worked well for video, but doing that destroyed the 3:2 cadence. When we checked the “unaltered” 4 x 3 version, the 3 :2 was OK. Lesson learned!
Mark
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Alright, so you had a dv sequence, upconverted to 1080i, then cross converted to 720?
There is no interlacing @ 60p and you were probably seeing the results of frame doubling or similar.
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