Slo Mo Help - % slowed down = what FPS?

Kip_Kubin

Well-known member
Help Me out somebody...

Can't find the link on this site.

Is there a chart or way to figure out what film camera FPS = % slowed down (or sped up for that matter) in our NLEs?


Thanks

Kip
 
Well, you can just do the math, take your framrate (24fps) and divide it by the frame rate of a film camera that you wish to achieve and that will get you there.

You shoot 24 fps and wish to do slow mo that a film camera would produce if shooting 48fps, then you would slow it down by 50%.
 
It's all in Barry Green's book if you have it.

Otherwise it has alot to do with shutter speeds, and the fps of the source material.
 
Nik Nerburn said:
But say for instance, I'm filming at 30p. What percentage would I film that down to get to 24fps?

you don't. just capture at 30fps like normal video then use a program like cinema tools to conform the timecode of your captured clip to 24fps. then you take the conformed clip into your editor on a 24fps or 23.98fps timeline and it will automatically play 20% slower than what you shot at and will be perfectly smooth. this is because you are not dropping or adding any frames. you are just playing back the original frames at a different rate.

if you just take the 30p clip onto a 24fps timeline and simply slow it down to 80% it will be the same speed as the above method but won't be smooth. this is because, first your editor will throw out the extra frames to get the 30p clip to play at 24fps. then when you slow it down, your editor will add in new frames by copying and blending, not retrieve the frames it threw out. this defeats the whole purpose of shooting at 30p.
 
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