Slow Motion
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Slow Motion

Posted on 07. Mar, 2007 by Jerzy Drozda Jr in After Effects

Ever wanted to use a high-speed camera? Well… this tutorial will show you how you can slow your footage down to 50% without interpolating the frames between.


Learn how to use the fact, that most DV cams record interlaced footage. Separate fields, duplicate frames by applying TimeWarp effect using Whole Frames method, and create blazing fast 50% slow motion effect without calculating intermediate frames. As a result you can turn your 25fps / 30fps digital camera to 50fps/60fps.

Find out more about internace.
Find out more about framerates.

Download: Tutorial project file (After Effects CS2)

Please note that the project file is missing the footage. Make sure to replace it by any other video clip. If you want to avoid adjusting the project I recommend that the footage you’re going to use is 15sec’s long PAL.

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62 Responses to “Slow Motion”

  1. Ahmed

    24. Sep, 2007

    Very easy and good solution for slowing time down… Maltaannon, I’m sure you know such an easy mothod for deinterlacing PAL footage!!!…

    Reply to this comment
  2. goemon

    28. Sep, 2007

    Very clever as usual.

    Reply to this comment
  3. david

    30. Sep, 2007

    first of all i wanna say thank you for all the great tutorials. in this case, i think i have a slightly easier solution.
    if you import interlaced pal footage into ae7 and interpret it lower field first into a composition, then enable time stretch 200%, ae automatically uses upper and lower field alternating. just try it.

    i think this works good for hd 50i footage, especially if you key something or if you have a defocus background. for sharp objects i find the flickering a little to much.

    thanks malt. hope for new tuts.

    Reply to this comment
  4. Violent wisdom

    18. Oct, 2007

    The only weapon we have to oppose the bad effects of technology is technology itself. There is no other. We can’t retreat into a nontechnological Eden which never existed…It is only by the rational use of technology, to control and guide what technology is doing, that we can keep any hopes of a social life more desireable than our own: or in fact of a social life which is not appalling to imagine.

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  5. Jordi

    13. Nov, 2007

    Combustion do that for it self, but It’s good to know how to do slow motion without combustion :)

    Reply to this comment
  6. Ray

    03. Jan, 2008

    Thank you For this tutorial! This is my new favorite website for After Effects.

    Reply to this comment
  7. jorge

    20. Jun, 2008

    Thanks for this tutorial!!

    Reply to this comment
  8. jorge

    20. Jun, 2008

    hey man i dont know if can simulate the new BACARDI MIX AD water and dancer
    using only after effect
    here is the link
    thanks for all the great tutorials!

    Reply to this comment
  9. jorge

    20. Jun, 2008

    Reply to this comment
  10. cemo

    15. Jul, 2008

    you rock man ! great help priceless.

    Reply to this comment
  11. Marek

    17. Aug, 2008

    I was trying to add more slow motion by adding timwrap>pixel motion, but I had problems with making footage in composition 2 times longer as it was done automaticly during your tutorial. Does anybody know how to use timewrap properly? cheers.

    Reply to this comment
  12. Anders Hattne

    24. Jan, 2009

    Hello! Great technique!
    I just decided to use the loopOut expression on the opacity- have every two frames 100% other two 0%(with hold keyframes). Easy and no calculator needed!!

    Reply to this comment
  13. Adam

    26. Jun, 2009

    Hi Maltaannon,

    The link to the project file no longer works! Any chance of re-uploading this one? No worries if not, I’m sure your tutorial will tell me all I need to know!

    Thanks!

    Reply to this comment
  14. [...] Slow Motion Create a slow motion video footage without use of high speed camera. [...]

    Reply to this comment
  15. [...] Slow Motion Create a slow motion video footage without use of high speed camera. [...]

    Reply to this comment
  16. bruno

    12. Sep, 2009

    im just watching your live streaming tv first episode and i want to say thank to you for your work, form the first tut to the last.

    Reply to this comment
  17. Marcello Mazzilli

    11. Oct, 2009

    What I would like to do is to take fields and merge them in a different way…. I think it will come even better but I don’t know with what software to do it.

    Let’s say you start with this footage at 50i
    1+2, 3+4, 5+6, 7+8, etc…
    Each frame is made by two fields
    Then you create a 100i footage in this way…
    1+2,2+3,3+4,4+5,5+6,… etc
    And then you just interpolate..
    (1+2), (2+3), (3+4), (4+5), etc…
    The result is the same quality as normal 50i–>25p interpolation (merging two fields) but you have double amount of frames for slow motion

    Reply to this comment
  18. Rob

    06. Nov, 2009

    While playing with this technique in Premiere Pro CS4 I noticed that the Timewarp filter (as used in this tutorial in After Effects, I’m pretty sure they are the same) when set to Whole Frames and Speed at 50.00 is actually seperating the fields and using them one after the other anyway to create a smooth slow motion. I don’t think you need to do all the duplicate clips and Strobe Light steps. Just use the Timewarp filter. Unless of course the Timewarp filter in this tutorial is an older version which doesn’t work the same as the CS4 version.

    Reply to this comment
  19. sung ock

    21. Apr, 2010

    thank you. 영상 따라하면서 잘보고 갑니다.

    Reply to this comment
  20. Florin

    05. Aug, 2010

    People like you can make the world better, really ! And it does! Thanks for your work and enthusiasm.

    Reply to this comment
  21. [...] There is a technique for slow motioning interlaced footage, but I’ll leave this one to Maltaannon. [...]

    Reply to this comment
  22. [...] There is a technique for slow motioning interlaced footage, but I’ll leave this one to Maltaannon. [...]

    Reply to this comment
  23. [...] There is a technique for slow motioning interlaced footage, but I’ll leave this one to Maltaannon. [...]

    Reply to this comment
  24. yusuphhamid

    07. Sep, 2010

    Maltaannon, I can wait to be like you. Please succour

    Reply to this comment
  25. [...] There is a technique for slow motioning interlaced footage, but I’ll leave this one to Maltaannon [...]

    Reply to this comment
  26. [...] Slow MotionCreate a slow motion video footage without use of high speed camera. [...]

    Reply to this comment
  27. [...] Slow MotionCreate a slow motion video footage without use of high speed camera. [...]

    Reply to this comment
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    how slow can you go, for example is 220 fps feesable?

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