Canon HV 20 24p: Pulldown in FCP but not in QT?
by joe hedge
on
Jul 21, 2008 at 7:46:57 pm
I shot with an HV20 in the 24p mode which actually produces 30fps clips with pulldown added. When I look at the footage in the FCP viewer the duplicate pulldown frames are there. But when I open the clips in Quicktime they play back at 30fps with no pulldown and no duplicate frames. Why does QT not show the pulldown?
Re: Canon HV 20 24p: Pulldown in FCP but not in QT? by joe hedge on Jul 22, 2008 at 3:09:47 am
Yes I already took the pulldown out as per apple's instructions - that's not what I'm talking about. When I open a clip I shot in 24p mode with the HV20 in QT, that I have not yet used Compressor to remove the pulldown/duplicate frames from, there is no pulldown and no duplicate frames. It plays at a continuous 30fps with no dupe frames. When I open THAT EXACT SAME CLIP in the viewer in FCP 6, it plays at 30fps WITH the dupe frames and pulldown. Why???
Re: Canon HV 20 24p: Pulldown in FCP but not in QT? by Jeremy Garchow on Jul 22, 2008 at 3:42:40 am
Qt doesn't show interlacing most of the time. Like I said, if the QT window is not at 100% (1920x1080), it isn't showing you the full quality. If you open the clip in Cinema Tools, you will be able to see interlacing. You should also have the high quality playback option enabled in your qt prefs.
If all of that is done, step through frame by frame to check for pulldown and double check your frame rate in QT.
Also, are you trying to do something in particular, or are you just making an observation?
Re: Canon HV 20 24p: Pulldown in FCP but not in QT? by joe hedge on Jul 22, 2008 at 4:31:54 am
Not talking about interlacing - yes the original camera clips it are interlaced. And I am stepping through frame by frame in QT - there are 30 frames per second but no dupe frames or pulldown when I open them in QT. But the exact same clips in the viewer (not the canvas) in FCP shows duplicate frames (pulldown). I know it's hard to wrap your head around unless you actually see it. Just wondering if anyone can explain it. Tomorrow I'm auditing Larry Jordan's advanced FCP class here in Burbank and I will bring my laptop and the clips and see what he says and report back, thanks, Joe
Re: Canon HV 20 24p: Pulldown in FCP but not in QT? by Tom Wolsky on Jul 22, 2008 at 1:21:32 pm
Why are you opening this clip in FCP without removing the pulldown? Do this in Compressor or Cinema Tools before importing the files.
The reason it probably happens is because Canon does not seem to interpret pulldown the same way FCP does. http://support.apple.com/kb/HT2410
All the best,
Tom
Class on Demand DVDs "Complete Training for FCP6," "Basic Training for FCS2" and "Final Cut Express Made Easy"
Author: "Final Cut Pro 5 Editing Essentials" and "Final Cut Express 3.5 HD Editing Workshop"
Re: Canon HV 20 24p: Pulldown in FCP but not in QT? by joe hedge on Jul 22, 2008 at 5:54:19 pm
"Why are you opening this clip in FCP without removing the pulldown? Do this in Compressor or Cinema Tools before importing the files."
I already created different clips using Compressor that removed the pulldown - that's not what I'm talking about. I'm talking about the original camera clips that play back at 30 fps with no dupe frames in the QT player, yet when you open them in the FCP viewer, they play back at 24fps with dupe frames and pulldown. Larry says it's because FCP is not showing the fields, whereas QT is.
