FORUMS: list search recent posts

Varicam slo-mo question

COW Forums : Panasonic Cameras

<< PREVIOUS   •   VIEW ALL   •   PRINT   •   NEXT >>
Bradley Kents
Varicam slo-mo question
on Oct 5, 2008 at 2:47:00 pm

Also posted on Apple FCP forum ...

We shot a doc short recently on the Varicam. We shot two ways.

#1. Most of the footage was shot for a 24 fps (23.98) timeline in FCP. But the Varicam ALWAYS records 60fps (59.94), so it fills the 60fps stream with duplicate frames that can be removed during capture. Right?

#2. For slow-motion work, we declared as much to the Varicam, and we assume that it records new information EVERY frame (er, field) in the 60fps stream -- NO DUPLICATE FRAMES. Then in FCP, we use the Frame Rate Converter to process things down to a smooth 24fps. Works beautifully.

So here's the question. What are our options if we decide in post that we actually would like a clip that was shot as #1 above to be slow motion after all? We have 60fps to work with on the tape and we can run the Frame Rate Converter in FCP, but it seems like it shouldn't produce the same results as in #2 because of the duplicate frames. Right?

Or we could attempt to have FCP generate slow motion out of the timeline, but with 24fps source material, we suspect the results will not measure up to those created using #2 above.

Are we correct in assuming that though we have 60fps (with duplicates) on the tapes, we really don't have the same raw materials (60fps, no duplicates) that we would have in #2 above?

Any suggestions other than the obvious -- try both the Frame Rate Converter and slo-mo rendered in FCP and compare the results?

Thanks,
Brad


Return to posts index

Chris Bell
Re: Varicam slo-mo question
on Oct 6, 2008 at 3:23:48 pm

Unfortunately not possible. When you shoot 24p with the Varicam, it creates a 2-3 type pulldown to make 60p. So even though the camera's VTR is recording 60p, you are not shooting 60 frames a second.... only 24.

This is the same for any frame rate under 60. The camera creates duplicate frames to make 60.

Chris Bell



Return to posts index

Bradley Kents
Re: Varicam slo-mo question
on Oct 6, 2008 at 5:02:47 pm

Thanks for clarifying, Chris ... makes perfect sense. Just wanted to make sure we understood properly.
Bradley



Return to posts index

<< PREVIOUS   •   VIEW ALL   •   PRINT   •   NEXT >>
© 2017 CreativeCOW.net All Rights Reserved
[TOP]