Advanced Pulldown Issues

[Don Greening]

This link may help if you haven’t seen it yet:

https://www.kenstone.net/fcp_homepage/24p_in_FCP_nattress.html

– Don

[Party Drone]

Thanks for the reply. I actually read this before posting my question.

This article talks about advanced pulldown in the context of everything going just fine when capturing. It doesn’t talk about what problems might occur (e.g., why there might be a problem in the pulldown cadence, or what might cause a problem in the pulldown cadence).

[Bryce Whiteside]

How are you capturing the 24PA footage, through the DVX-100A camera or another DV transport (VTR)?

You might want to post in your signature your equipment setup including your ingest (Log & Capture) pipeline, Mac OS X version and FCP version.

Inquiring minds…
Bryce Whiteside

Don’t worry Mr. B. I have a cunning plan…

PowerBook 1.67 Ghz ATI 9700 128 MB 2 GB
Final Cut Pro HD
DVD Studio Pro 3
Motion

[Party Drone]

I am capturing from a Panasonic AG-DV1000 deck (MiniDV) into Final Cut Pro 5 (I have the full Final Cut Suite) on a 1.5 GHz PowerBook G4 17″ (full specs are in my profile). I am storing footage on a 250 GB G-Drive from G-Technology.

Footage is captured at standard resolution with the advanced pulldown removal, then recompressed to Photo JPEG for “offline editing.” This is because I could not get FCP to do the advanced pulldown removal when capturing directly to Photo JPEG.

The concert was recorded using nine DVX100a cameras, and I am only having pulldown cadence issues with a couple of tapes. These tapes, as a matter of interest, are from stationary cameras that weren’t manned

[Bryce Whiteside]

Adam Wilt’s 24p: the AG-DVX100 and digital filmmaking is a link you may already have. If you did you would know the for 30fps 60i counting from the “AA” frame the split frame occurs at the 3rd “BC” frame. Determining the cadence of your footage requires a little more knowledge than just every 5th frame being a split frame.

24P at 30fps 2:3:2:3
WWSSW

24PA at 30fps 2:3:3:2
WWSWW

Don’t worry Mr. B. I have a cunning plan…

PowerBook 1.67 Ghz ATI 9700 128 MB 2 GB
Final Cut Pro HD
DVD Studio Pro 3
Motion

[Bryce Whiteside]

Are you capturing discreet logged clips?

Cadence errors can occur across stop/start points on the tape if the the camera was stopped and then started again.

It doesn’t sound like this from what you posted, but I had to bring it up.

Inquiring minds…
Bryce Whiteside

Don’t worry Mr. B. I have a cunning plan…

PowerBook 1.67 Ghz ATI 9700 128 MB 2 GB
Final Cut Pro HD
DVD Studio Pro 3
Motion

[Party Drone]

I’m actually capturing a whole tape at a time. There aren’t (or shouldn’t be) any start/stop points on the tape because it was a continuous roll for the whole show. Footage from all of the cameras will by synced and marked as multiclips in FCP.

I have actually marked the timecode each time I get an error from Final Cut and gone back to actually create discrete clips, but I still get the error even when capturing to within a few frames of the problem timecode.

I understand that every frame ending in 2 or 7 is the split frame in 2:3:3:2 pulldown sequence

[Jeremy Garchow]

Is your hard drive and DV deck separated on different busses, or are they sharing the same bus?

You should consider getting a firewire PCMCIA adapter to separate your external firewire drive and your dv deck.

Jeremy

———–
G5 Dual 2Ghz <> 4GB RAM <> FCP 5.04 <> Kona 2
ATTO 42XS <> Huge Systems 4105 Fibre
OS 10.4.2 <> QT 7.0.3

[Gary Adcock]

[Bryce Whiteside] “Are you capturing discreet logged clips? Cadence errors can occur across stop/start points on the tape if the the camera was stopped and then started again.”

Cadence errors are notorious when using capture now also. as FCP is not reading any kind of pulldown so it often stops in mid cadence — and then cannot figure out what to do.

Gary Adcock
Studio37
HD and Film Consultation
Chicago, IL USA