Slow Motion in 24f

Ramon Boutviseth

Ramon Boutviseth

Well-known member
Technical question,

If I shot 24f footage and slowed it down 40% would this give me smooth slow motion? frame by frame?


thanks.
-ramon
 
Nope shoot 60i do a 60i-60P-24P conversion and you would have smoth 24P slowmo wich represent 40% of the orginal recording speed.
 
Slowing down 24F will look awful, just like slowing down 24P. As MovieSwede said, if you want smooth slow motion from a 24F camcorder, shoot the bits that you'll want to slow down in 60i mode, then put them on the timeline at 40% speed.
 
No, 24F is a 24-frame stream (from tape). If you're looking at the analog output then yes, it'll be embedded within 60i, (or on an XLH1 or XHG1, the HD-SDI is a 60i stream) but on the tape or out the firewire, 24F is actually 24 frames, not 60i.
 
That is some very sweet looking slow motion, my friend. I hope you're going to include this on yout A1/G1/H1 DVD ;-)
 
It's the H1. It would've looked basically the same from the A1 given the same image tweaks and shooting mode (1080i 60, 1/120 shutter, Cinegamma2, etc.) but I didn't have the camera at the time.
 
That was some really smooth slowmo. Is that Nattress plug-in any better for deinterlacing than a regular NLE (Vegas)?
 
I've heard Vegas does a really good job of deinterlacing for slowmo but I've never used the program so I can't say. Macgregor has shown some impressive 50i to 25p 50% slowmo from the H1/Vegas, but I don't know exactly what the process was.

You can probably get similar results with either NLE.
 
I shoot in 24f and do my slomo in shake. The results tend to be pretty amazing. I'm sure somebody who knew what they were doing with shake would yield even better results.
 
I don't know Shake, but you're pobably using frame-blending to fill up the "open" frames? I use frame-blending a lot in After Effects and it deffinently gives a nice result with slow motions.
 
I don't use frame blending in shake although it does have that option. Shake has a mode that interpolates the frame inbetween frames. FCP uses frame blending in their slomo and I don't like the results so much.
 
Im a director, don't get me wrong, But you directors here @ DVX user make directing seem like the hardest most nerdiest thing to do on earth. lol, while the pros make it seem easy (Quinton, Speilberg, etc.)
 
And this directing post has exactly what to do with how to technically slow down footage?!?! I could see if we were talking about how hard it is to deal with actors or something, but this is a camera tech/NLE question being asked. Not to mention that Quentin (that's Tarantino, by the way!) and Spielberg don't get hands on with the technical stuff of their movies. :undecided

As for slowing down 24F in Shake, I'm gonna give it shot sometime this upcoming week, and see what I get...
 
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Yesterday I filmed a mouse which my cat caught (and crawled in my shirt. I couldn't get it out for a while) in 25f. I want to slow this footage down too since it was hilarious the way it ran off when I finally got it out. I'm using After Effects, but I'm sure the pixel-frame-blending will do the job just right. I'll take a look tonight.
 
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