going slowmotion from 24p

amber

amber

Active member
We're doing some slow motion segments, unfortunately these were recorded in 24p rather than at a higher frame rate, so of course the footage looks jerky at speeds such as 20 percent. We know there isa filter that can decrease the jerkiness, but if possible we'd like to avoid processor/time intensive filters. Here's the idea: because of a completely unrelated reason we will be be taking our clips, playing them on a large screen HDTV and filming them with the original HVX200 off the screen. (Kinda like bootlegging, only we'll be filming our own stuff.) Is it possible to convert our footage before hand to say 60p (or leave it at 24p), then film it off the HDTV at a higher frame rate like 60p, then put it back into FCP, slow that clip down by say 20% speed, convert back to 24p, and finally end up with the smoother movement we'd like? Of course, its necessary to retain the 24p frame rate so we can match it with the rest of our footage. *OR* is it the case that that once one records in 24p only the original amount of frames recorded will ever be available? That is unless one uses a filter?

thankyou!
Amber
 
That all sounds like a crazy scheme.

But I've had some success slowing 60 fps footage down to about 200fps in After Effects CS 3, and kept it really smooth and pretty. Look at timewarp and time remapping. You might be able to slow down the original that way and get it at least close to what you want. Of course the more frames you have to begin with the better. And in this technique, motion blur in the original footage can cause some issues. but give it a try.
 
I don't see that working out. Though I have to say your thought process is amazing for coming up with that idea. If you shot it at 24p than thats what you have to work with. I don't believe that shooting it off a TV at 60 is going to do any good since either way the TV will still only project the 24 frames, and not make extra frames that are not there. Though maybe it will, but I doubt it.

You should re shoot it. And you'll at least learn a good lesson to make sure you shoot 60 when you need it. Trust me I had to go threw it myself. If you have a Mac and Final Cut Studio 2, you can use Motion to process extra frames in between the original frames to make it smoother, but like you said it will be processor intensive. Thats the only other way that it would work. Unless you have other filters that do the same. Im not sure which filter it is in Motion, though I did see it in a tutorial on Lynda.com

Other than that live with it or re-shoot it.
 
Hey you all, thanks for the response. I'll open up motion and see how it looks
after going through that filter, which ever it is... If someone out there knows
which it is exactly, please, do tell! And, otherwise, I'll try out the other idea,
on just a quick clip... Just for the heck of it. I don't know, Eatsnax, my thought
process might be more bullheaded than amazing! We'll see.
 
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