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ProRes format question from a noobie
I’m editing a short in FCP that was shot on a Canon 7d. The DP was supposed to shoot at 24p, but for some reason decided to take it upon himself to shoot most of it at 30p and some of it in 60p. I used the Apple ProRes plugin, which changed all of the files to 24p in FCP.
I’m assuming there should be some effect, but I don’t see anything wrong with playback. I ran a test and outputted a sequence to see if it was any slower, or lagging at all, but I don’t see anything.
Does this make any sense? Shouldn’t there be some sort of noticeable lagging?
I’ve already begun editing, but I want to make sure I don’t finish it and then have problems with the playback after exporting to DVD.
Any help would be wonderful!
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8 Replies
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“I’m assuming there should be some effect, but I don’t see anything wrong with playback. I ran a test and outputted a sequence to see if it was any slower, or lagging at all, but I don’t see anything.”
You mean you expected the footage to be slo mo when you converted the 60p to 24p? That will not make slo mo.
To make slo mo you CONFORM (not convert) the footage from 60p to 24p in Cinema Tools
Rob Grauert, Jr.
http://www.robgrauert.com
command-r.tumblr.com -
[Merrissa Saunders] “. I used the Apple ProRes plugin, which changed all of the files to 24p in FCP. “
This doesn’t makes any sense.
Please explain what you’ve done and with which application.
rafael -
Quick question-Does your material have audio that is used in the final product? I understand that you’re using the new Canon log and transfer plug-in. But I’m not sure how it treats frame rate conversions yet.
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Actually, I don’t see any ability to change frame rate in L&T. The plug-in just transcodes clips to ProRes and adds timecode, does it not? Did you drop 30p or 60p clips on a 24p timeline? Is audio involved at all?
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Sorry, I’m used to working by myself, so I don’t have all the technical jargon down.
I used FCP6’s log and transfer to import the .H264 files from the Canon 7d and transfer them to the Apple ProRes 422. The original files were in 60p and 30p, but when I converted them to prores, they changed to 24p.
I hope that makes more sense.
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Yes, there was audio recorded from another source (DVX-100) that I’ve already linked to the video footage. Does that make a difference?
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Right. There was no ability to change the frame rates in Log and Transfer. I didn’t manually change the frame rates, it just happened when I transcoded to ProRes.
So all the original files, that were once 30p and 60p, are all now 24p. Yes, there is audio involved, but I have had no problem syncing.
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I’m at a loss as to the supposed frame rate change. I suggest you look at the item properties for the clips from the Canon and see what frame rate is listed for each one. This could help solve your mysteries.
My guess is that they are indeed ingested in their native frame rates and when they were dropped into your sequence Final Cut roughly conformed the clips to the sequence timebase. This can result in motion jerkiness in some instances and not in others. But it can work.
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