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Video shot at 60i, 1/120th shutter speed, slowed down to half speed progressive footage in a 24p timeline with After Effects.

hv20.com/showthread.php?p=47024#post47024 for instructions.

Music by Kraftwerk.
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  • Michael Brodner AKA Bones 6 months ago
    Hey thanks for the instructions. I've been really trying to figure out the whole slo mo look. Take a look at this. Maybe you can help me with this problem I've been having.

    vimeo.com/forums/topic:4122
  • Eric Rieper 6 months ago
    Thanks so much.

    I'm really not sure what that issue could be! I haven't really spent much time in FCP, I work in Premiere / After Effects.

    It may be possible that by applying the fade it caused FCP to look at the interlaced lines differently, and pass along progressive frames to the slowing-down business, but this is just a completely wild guess. Sorry!
  • Eric Rieper 6 months ago
    Oh, and I saw your "Slo Mo Test" lip syncing video the other day- it came out great! Love the colors and artificial DOF.
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  • Lucasberg 6 months ago
    That looked really good.
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  • Mark Jensen 6 months ago
    very cool. added to adobe channel.
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  • Matt Taylor 6 months ago
    That looks really cool Eric! I found my way here from hv20.com, thanks for posting instructions on how to achieve this! I'm gonna give 'er a try when I get some time.
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  • Pollykore 6 months ago
    IS this really 24p or just time streching? its much cleaner then just slowing it by 50% in FCP i just want to the the difference
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  • James 4 months ago
    great footage! I've followed your instructions step-by-step and for some reason, because of the conversion of 60i to 24p instead of 30p, I get jagged movement in my slo mo footage. it looks like it's almost there, but it feels like it's missing a few frames or something . . . any ideas?

    thanks!
  • Eric Rieper 4 months ago
    Hmm... does my footage above have the same jagged motion to you?

    My thoughts are that either your shutter speed was something faster than 1/120 which would produce a bit of a stroboscopic jaggy motion, just light a faster shutter speed with regular motion video, OR

    By slowing the video down to 50 percent you are generating 30fps slowed video, right? Well, when you put that in a 24fps comp then after effects has to some trickery to make it work. That trickery is probably dropping some frames... I'm not sure!

    Try taking some regular 30fps video and putting it in a 24fps comp. Does it show the same jagged motion?
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  • James 4 months ago
    Cool, thanks for the info. I'll try to do some tests tonight and put them up and see what you think - seeing the footage would probably best illustrate the issue.

    PS- you said, "just light a faster shutter speed with regular motion video" do you mean shoot on a higher shutter speed then 1/120 and do the same conversion you have in your stepbystep?
  • Eric Rieper 4 months ago
    Whoa... "Just light a faster shutter speed"... great wordplay! I meant to type the word LIKE.

    Just LIKE a regular speed video with a faster than 180-degree shutter speed [anything above 1/48th for 24fps video or 1/60th for 30fps video].

    The faster the shutter speed the less natural motion blur is seen in the frames so the motion appears less fluid.
  • James 4 months ago
    note: I downloaded your sync/time clip and I did see the slight jittering I referred to in my first post.

    what are your thoughts on 30p compared to 24p? big enough difference in the "film look" quality to make 24p worth it I assume? *I haven't had a chance to do this test myself, but wondering what your thoughts are on this.

    cheers!
  • Eric Rieper 4 months ago
    I don't think 30p would produce any sort of "film look"- I think the main thing is that the reduced 24 frames is something we associate in our minds with film. The more fluid 30 frames is something we associate with home video and lower budget TV news.

    Just to double check, are you doing your slow motion in after effects?
  • James 4 months ago
    no, you're right about that. 24p is definitely the way to go. well, thank god the 24p slomo is working now!

    HALLELUYA!!
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  • Stephen Grant 2 months ago
    How about PAL and using 25p?

    I tried it and it looks a 'little' choppy.
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  • Limited Films Unlimited 2 months ago
    Very nice, it looks really good.

    a little beside the point, but i really liked the dissolve at the end. was that just a standard dissolve? because it looked more like a fade to black on film looks. with the highlights lingering a little bit.
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  • pfista 1 month ago
    I use this method and it's worked great so far:
    rarevision.com/v1/articles/slow_motion.php

    Yours looks good though
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  • Mike Lewis 1 month ago
    thanks for the post I have made some test it work great
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