Re: 25 FPS to 24 FPS by Dave LaRonde on Dec 4, 2008 at 8:22:52 pm
[Dan RAPAPORT]"I'd like to change my movie 25 fps to 24 fps.
How should I achieve that in AE? (Should I use the pull down?)"
No pulldown; that's used to convert film frame rates to TV frame rates in NTSC-land.
If you don't care that it's a little longer, you can always interpret the footage as 24fps. And speaking of NTSC-Land.... if you're ABSOLUTELY SURE you want a 24 frame rate, fine -- interpret the 25fps footage as 24. But if you're going to an NTSC film frame rate, you should interpret the footage as 23.976, and render as such.
Dave LaRonde
Sr. Promotion Producer
KCRG-TV (ABC) Cedar Rapids, IA
Re: 25 FPS to 24 FPS by Chris Wright on Dec 4, 2008 at 9:59:27 pm
Timewarp misconceptions and Andrew Kramer's plugin and workflow.
Timewarp is actually Kronos from foundry. Here's what they have to say about it.
"Essentially, by 'deinterlacing' in this way you are losing half the vertical resolution of your clip."
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To maintain this information in a accessible manner you need to pop your fielded clip in a composition of double the frame rate. Thus for our 25fps PAL DV clip, create a 50fps composition. Now when you look at composition frame 1 you see the lower field of frame 1 of the DV clip, looking at the composition frame 2 you see the upper field of frame 1 from the DV clip; comp frame 3 = lower field dv frame 2 and so forth.
Using this double frame rate composition allows Kronos / Timewarp to access the information in the second field and thus give an improved retime result with less temporal and spacial smudging. Obviously, you can then drop this into a lower frame rate output comp and field as necessary. It's a little difficult to show the improvement on a compressed static shot as much of it results in smoother temporal transitioning, but the below pics should give you some idea.
