Going from slowmotion to "ordinary" 25 fps?

A

Admir

Well-known member
Hi!

Just wanted to see if anyone can help me out on this one...

I'm going to shoot a musicvideo in about a week and I'm planning of having a couple of shots where it first part goes in slowmotion (50 fps) and then continues in realtime speed at 25 fps.

Now I know that the most simple thing would be to just leave it in 50 fps all the time and just convert the slowmo part in 25 fps. But, I don't like the feeling of the 50 fps.

So, is there anyway i can convert the 50 fps to 25 and still keep the realtime speed of the clip? I've seen this been done in a lot of series and movies (Dexter, just to mention one), and when it cuts from the slowmotion to the ordinary it looks like it is 25/24 fps and not 50...
 
If the timeline in your NLE is 25fps it won't have that high frame rate "home video" look. The final output will just dump those extra frames. So shoot in 50, work in a 25 timeline. That's the best you can get if you want to ramp the speed.
 
Thanks for the tip! I've been trying that one before, in premiere cs5 and even if I work in a 25 timeline with a 50 fps clip, i'll end up with the 50 fps home-video look. Only way to do this is to go to "interpret footage" or how you spell it and change that to 25 fps.

But if I do this, won't I loose the ability to do slowmotion? Or will the 50 frames still be there even if premiere only displays the 25 when playing it?
 
Admir said:
Thanks for the tip! I've been trying that one before, in premiere cs5 and even if I work in a 25 timeline with a 50 fps clip, i'll end up with the 50 fps home-video look. Only way to do this is to go to "interpret footage" or how you spell it and change that to 25 fps.

But if I do this, won't I loose the ability to do slowmotion? Or will the 50 frames still be there even if premiere only displays the 25 when playing it?
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If you're using Premiere CS5 (I think this works with CS4 too), then just shoot your entire project in 60/50p, edit on whatever relevant sequence settings you choose -- and the final "look" is based on your export settings. So, if I filmed in 60p and encoded the final project at 24p -- I'll end up with a 24p looking production. You can get away with this on 60p (and I assume 50p) footage. The problems arise when you start trying to export 30p projects as 24p projects.

So, if it was me, I'd film the whole thing in 60p, edit in a 60p sequence in which I'd do all my velocity changes (play with your keyframe handles for extra cool looking velocity changes), and then I'd export the finished work at 24p. If I had to have 1080 -- I'd drop the completed work sequence on a 1080/24p sequence, use Premiere's upscale feature (in CS5 it's impressive has hell!) and export to 1080/24p.
 
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