720p 30 ...output as 720p 24
by Paul Harrison
on
Jun 23, 2008 at 1:52:18 pm
I have a large number of clips that were shot 720p 30, which were then output as clips at 720p 30fps.
My agent prefers them as 720p 24fps. When I load the clips back into FCP and re-output as 24fps, the clips have a long space at the end that is black.
Questions.
Is there an easy way to make this transition with the existing clips without damaging the quality and without the black zone in the clip?
Is it better to go back to the original footage saved with the Media Manager?
Obviously I am fairly new at this, but something the editor said confuses me...she contended that the footage was by definition 'interlaced' because it was 720p 30fps...? But I purposely shot it 720p for it to be progressive....does setting the fps at 30 somehow make it interlaced, that was not my understanding...?
I am shooting on the Panasonic HVC200, which captures everything at 59.9 anyway according to my understanding?
Any help would be appreciated, I do not want to re-do all of these files and not achieve the highest quality possible...and have to do it again...Thanks.
Re: 720p 30 ...output as 720p 24 by Steve Eisen on Jun 23, 2008 at 2:43:48 pm
A bit confusing but I think I understand what your trying to say. First before you start shooting footage, the shooter and editor must be on the same page and select a format and stick with it. Obviously your project has been shot. My suggestion would be to tell your "agent" to either reshoot at 720p 24 or edit the project using 720p 60 (that is the sequence setting for 720p 30).
FYI, the camera is the HVX-200.
Steve Eisen
Eisen Video Productions
Board of Directors
Chicago Final Cut Pro Users Group
Re: 720p 30 ...output as 720p 24 by Paul Harrison on Jun 23, 2008 at 2:55:26 pm
Sorry to be confusing. Re-shooting is not an option.
So I have 400 clips that are 720p 30, and I need to make them 720p 24.
I would prefer not to go back to the original files, a great deal of time went into editing the sequences, is there any way to import the QT files that were saved and to re-output at 720p 24??
Thanks for the help.
Re: 720p 30 ...output as 720p 24 by Alan Okey on Jun 23, 2008 at 3:38:58 pm
[Paul Harrison]"Obviously I am fairly new at this, but something the editor said confuses me...she contended that the footage was by definition 'interlaced' because it was 720p 30fps..."
Your editor is confused. 720p HD is progressive at any frame rate - there are no interlaced 720-line HD formats. Cameras that shoot 24p over 60p insert duplicate frames to create a 3:2 pulldown pattern.
1080-line HD is another story. 1080i/30 is akin to NTSC - 60 interlaced fields @ 29.97fps.
If you convert 720p/30 to 720p/24, your footage will appear to be slowed down to 80%.
If your editor or agent wants a 720p/24 product with normal motion (not slow motion), footage must be shot as 720p/24 to begin with. If your camera shoots 24p over 60p, then you'll need to remove the pulldown on capture. Using the 720p 24 Easy Setup in Final Cut Pro enables Advanced Pulldown removal by default.
If your camera doesn't have an option to shoot 24p Advanced (24pA), you can still confirm the 24p over 60p footage to true 24p using Cinema Tools.
Re: 720p 30 ...output as 720p 24 by Dave LaRonde on Jun 23, 2008 at 4:59:03 pm
[Paul Harrison]"I have a large number of clips that were shot 720p 30, which were then output as clips at 720p 30fps. My agent prefers them as 720p 24fps."
I hate to state the obvious, but something as basic as the delivered frame rate should have been established before Frame One of the project was shot. Someone either didn't know the basics of how your camera works or what happens when the footage gets captured, or blithely ignored it.
You should check out Nattress Standards Convertor. It might -- repeat, MIGHT -- be able to salvage your edit. I don't know how well it works with 720p (if at all), but unless someone here says Nattress is useless in this instance, it's worth investigating.
If you know After Effects, I know of a few third-party plugins that can do the trick: Magic Bullet, RealViz ReTimer, ReVision Fieldskit to name a few.
In any case, you face a re-edit job. You edited at 29.97 (or 59.94), and your FCP timeline needs to be at 23.976 (or 47.952), aka 23.98. Things WILL be off, and you'll have to compensate.
Dave LaRonde
Sr. Promotion Producer
KCRG-TV (ABC) Cedar Rapids, IA
Re: 720p 30 ...output as 720p 24 by Paul Harrison on Jun 23, 2008 at 6:08:35 pm
Thanks for the notes, and at the risk of further revealing my...whatever, a couple of follow up questions.
This material was shot for stock, and therefore there was no editor at the beginning...I shot 720p30 in the beginning because 30fps seemed to be the most broadcast friendly from my research.
Then I changed my mind, and I started to shoot 720p60 in order to match what the camera was shooting anyway (HVX-200) and I edited in a sequence that was 59.94 and used the Media Manager to save the original files without loss, and output the files QT files PhotoJpeg with 59.94fps.
Can I go back to the Media files, and now edit on the 23.98 timeline and get out of this mess for those files?
Can I import the 59.94 QT files place it into a 23.98 sequence and render without damage?
