24p & 24pA screwup

A

alan b

Active member
I would imagine this has been asked before but I would also think doing a search in this forum for "24p" would garner just about the entire postings in its archive, so please bear with me:

I just got back from shooting some important b-roll. As I was adding some black at the end of the last shot I was looking at the TC and I noticed it going to xx:29 and I thought, hmmm, shouldn't it just go to xx:24 since I ALWAYS shoot at the F5 setting. So I glance at the dial and the damn thing is at F6 (of course this makes me forget about the TC issue). As I said I always shoot F5 so it didn't occur to check it when I was shooting, therefore I have no idea when it got switched because I was man-handling the camera quite a bit during the shoot.

So...can I use this footage with the rest of the piece that was shot entirely with scene setting F5??? What exactly am I up against here?

thanks

alan b
 
I don't know if other NLE's would have a problem with it, but I know Vegas can handle the two together seamlessley. As far as look, they should look the same other than your gamma settings ... your colors, black level's, etc. may look SLIGHTLY different, so there may be some slight adjustments needed in post if you want them to match.

Otherwise, you should be fine. Myself, I always shoot 24PA (scene 6), as I like the look slightly better, and IF I ever wanted to transfer out to flim, 24PA is the suggested one to shoot in anyway.
 
I'm working in FCP 5. Definitely won't be going to film with this.

I will assume I'm pretty safe here. I was not too terribly perturbed to discover this, given that both settings are 24p (tho I still can't get a handle on exactly the difference between F5 & F6). But I had also forgotten today to take the camera off high gain from the low-light footage I had shot last time out, so I am getting pretty frustrated. I'm still relativlely new to this camera and I just can't get used to all the things I need to remember before I hit the red button.

ab
 
24pa footage needs to have pulldown removed. 24p doesn't require pulldown removal but it can be done.
Are you editing in a sequence at 23.98 or 29.97?

Make a little check list to double check settings at the start of the day or before every major setup.
 
One thing to be clear about -- F5 and F6 are stops on the scene file dial, nothing more. They can be set to anything you want them to be, at any time. Don't confuse F5 with 24p and F6 with 24pA. F5 and F6 are set to those framerates, respectively, as factory default, but the other settings, such as gamma curves, have nothing to do with 24p or 24pA.
 
Allow me to respond to Scottdvx100 and Jubal in one post:

--Editing at 29.97.

--I'm a total novice at this pull-down business. I understand in the abstract but putting it into practice is another thing; like >when< do I remove pulldown? At capture? How will this effect my workflow? More importantly, is there a way to determine what the footage was shot at since I have no idea when it got switched over?

--Understood about the variable settings within the scene files, but frame rate is one thing I've left alone so as not to get confused later on. The dial just happened to get turned over to F6 without my knowledge.

alan b
 
If you're removing pulldown on 24pa the easiest way is to do it on capture. This eliminates additional steps. If you did capture 24pa without removal you can typically remove it after the capture.
In FCP select the clip(s) in the b n and go to Tools -> Remove Advanced pulldown.
If this is 24p then you use Cinema tools to reverse telecine. (it's changed a bit in FCP 5)
Some NLE, like Vegas, supposedly can deal with it directly either way.

Easiest way to check 24p vs 24pa is to go to play sections in DVX with displays turned on. It will display 24p or 24pa depending on footage.
If you have FCP then it should complain if you try to remove advanced pulldown from a 24p clip. You can also step through a few frames. If in a 5 frame sequence of action (motion) there's only one frame that shows fields then it's 24pa.

Most of us refer to F5 and F6 since that tends to be easier for beginners to understand and most likely they haven't changed anything. But of course you can change scene files to be anything, including fps.
 
You must log in or register to reply here.
Back
Top