24pa question

C

crydercohen

Active member
hey all,

i sluethed through the threads, but can't seem to get an answer that all agree on. i'm planning to shoot in 24pa and either transfer to film or to dvd (most likely to film).

1) do i capture with 29.97 and then do a reverse telecine with cinema tools and edit on a 23.98 database? also, how do i set up the timeline to be 23.98? i've done it by adjusting the settings in the sequence tab with files that i captured in 23.98, but can't seem to do it with files in 29.97?

2) do i capture with 23.98 and an advanced pulldown? this is a key confusion for me because i have read elsewhere on the posts that this removes frames, but not necessarily the ones that i want removed, thus the jerkiness.

3) should i just shoot in 24p (not 24pa), edit on a 29.97 timeline, and then do a reverse telecine on the whole thing? is this even possible?

4) basically, what is the best way to shoot something and edit something that i will output to film, something that will give me the cleanest image without jerkiness and unneccesary confusion?

thanks to all in advance

sb
 
I suppose you would just shoot 24p, 24pa is better suited for applications like DVD and television.

When you remove the pulldown (which is what 24pa is all about) you get 29.97 footage that you can work with anywhere.

I've never worked with film, but I would imagine when you use cinema tools you could import the 29.97 footage as 23.97 (by adding the pulldown)

If you shoot 24p then you would import as 23.97, if you did it as 29.97 with 24p then it wouldn't remove any pulldown, and it would just be fairly pointless; it would look jaggied.

All in all shoot 24pa if you plan on doing anything for television/dvd or film. I'm sure someone will point you to the website with the 24p basics. Its not an easy read, and I'd recommend looking over it several times, weekly, until you get the idea.
 
24P is for getting film look when your final output is video.

24PA is the best method for working when your final output format is 24P (ie. 24p DVD or film).

24PA is not more "jagged" after the pulldown. It is more jagged BEFORE the pulldown. The frames that pulldown removes are the ones that are not supposed to be there.
 
1) do i capture with 29.97 and then do a reverse telecine with cinema tools and edit on a 23.98 database? also, how do i set up the timeline to be 23.98? i've done it by adjusting the settings in the sequence tab with files that i captured in 23.98, but can't seem to do it with files in 29.97?
Click to expand...

There is no need to use Cinema Tools. See ScottDVX100's website at
http://squiresstudios.com/dvx100/dvx100fcp.html

You can use the "Advanced (2:3:3:2) Pulldown Removal" preset. This will convert your 29.97 footage to 23.98.

Your sequence setting is for a 23.98 timeline.

2) do i capture with 23.98 and an advanced pulldown? this is a key confusion for me because i have read elsewhere on the posts that this removes frames, but not necessarily the ones that i want removed, thus the jerkiness.
Click to expand...

See above. You capture 29.97 footage with the Advanced Pulldown Removal preset selected. This converts it into 23.98 footage.

3) should i just shoot in 24p (not 24pa), edit on a 29.97 timeline, and then do a reverse telecine on the whole thing? is this even possible?
Click to expand...

Sure, it's possible. But it's not the best way of doing things. Your cuts will not necessarily be at the same place in the cadence. Thus some of the interlaced frames will be preserved.

4) basically, what is the best way to shoot something and edit something that i will output to film, something that will give me the cleanest image without jerkiness and unneccesary confusion?
Click to expand...

See above link.

Shoot 24pa
Capture using preset to 23.98 timeline.
Edit.
Output to 24p.
 
Joe and tigeba are right on. If the intent is to head to 24P DVD or a film out then 24PA is the way to go. To give an example of why you would want to do this for DVD, your encoder will be able to provide higher quality at lower bit rates because it has less frames to encode. When you playback on a TV, the DVD player will add back the neccesary frames.

24P normal is sometimes better for projects that will say 29.97 the whole way through the editing and distribution. The footage tends to look smoother than 24PA when played back at 29.97.

24PA is cleaner when doing the pullown because it doesn't get recompressed, so if you are going to a 23.98 timeline it's better to shoot 24PA as opposed to shooting 24P and then having to do the pulldown in Cinema Tools.

Steve
 
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