how come 29.97??

S

swilliams

Active member
How come when i have my settings set to import NTSC 24P it still imports 29.97?

I'm using the dvx100B, after import if i click on the info tab (i dont remember the technical name) it says it's 29.97. this is frustrating because i know that i filmed and imported in 24P. My timeline is set for 23.9? <-- as you can tell i'm a rookie :)
 
If you shot in standard 24P (scene F5), the camera creates the pulldown internally and the video is laid to tape as 29.97 and is then edited as such.

If you shot in 24P Advanced (F6), it laid the video down as 29.97, in which case the 24P has to be extracted from the 29.97 before editing.
 
DVX100 24pA footage should always be captured at 29.97 because that's what's on the tape. When a user wants to cut at 23.98 they need to properly remove the 2:3:3:2 pulldown introduced by the DVX100 during filming. The DVX100 flags these extra frames and embeds these flags into the Firewire data stream. FCP can read these flags back during ingest and conform the 29.97 pulldown footage back to the 23.98 captured by the camera. That is what the Remove Advance Pulldown from 2:3:3:2 sources checkbox in the capture settings is for. But in order to do this properly, the FPS setting in FCP must be set at 29.97 to give FCP the full firewire data stream and allow it to properly recognize the flags and remove the Advance pulldown frames.

If you set the capture FPS at 23.98, FCP will randomly delete frames to get from 29.97 to 23.98 but they will not be the correct frames. You'll wind up with a 23.98 file that looks odd during playback from FCP because the 2:3:3:2 interlaced pulldown frames are still there along with randomly missing progressive frames. This has become the number one issue plaguing FCP users with DVX100 footage who want to cut at 23.98 and has resulted in a lot of confusion. I've hoped to lobby Apple on this issue so that they might include a warning pop-up in FCP giving notice that 23.98 FPS capture will result in improperly digitized DVX100 footage but haven't made any headway and Panasonic hasn't been able to either- maybe you can help with that.

I know it seems counterintuitive that one would use 29.97 as the capture frame rate in order to ingest 23.98 footage but that's how it must be done because of the way the format is recorded to tape.

Noah
 
wow, so does that mean that my sequence setting should be set to 29.97 as well? I'm assuming this is the case.
 
Absolutely!!

Keep in mind the 24p (f5) mode is used for creating a 'film look'. It's what all the documentation says.

There IS an easy way to convert all that stuff to 23.98 though if you really do... but I'd say stick with the way you shot it and edit away in 29.97.

Good luck,

CaptM
 
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