• Adobe After Effects

  problem w/ removing pulldown with stretched footage

  Posted by Lisa Daly on February 21, 2008 at 1:24 am

  I’m removing pulldown on some footage, then stretching it to 200-400%. The problem is that SWWWS turns into SWWWWWWS, which looks very obvious. We can’t find high speed footage, so we’re hoping to find some way to make this work without having to speed it up.

  Do you have a suggestion?

  Steve Roberts replied 18 years, 7 months ago 3 Members · 2 Replies
• 2 Replies

• 

  Darby Edelen

  February 21, 2008 at 7:36 am

  [Lisa Daly] “I’m removing pulldown on some footage, then stretching it to 200-400%. The problem is that SWWWS turns into SWWWWWWS, which looks very obvious. We can’t find high speed footage, so we’re hoping to find some way to make this work without having to speed it up.”

  I’m confused about your process and your goal. If SWWWS is turning into SWWWWWWS then it sounds like you’re not removing the pulldown correctly before stretching it (we are talking temporally here right? making the footage play at 1/2 the speed?). Once you remove the pulldown the footage should be WWWW without any split frames, then you can stretch to your hearts content… unless I’m missing something about your process?

  Darby Edelen
  Designer
  Left Coast Digital
  Santa Cruz, CA
• 

  Steve Roberts

  February 21, 2008 at 1:54 pm

  First, import the footage.
  Next, alt-double-click on it.
  Next, select file>interpret footage>main.
  In that dialog, separate fields and guess pulldown.
  In the window showing the footage, step through it using PageDn. If you see any interlacing at all, go back and choose another interpretation.
  Repeat stepping and choosing until you see no interlacing.
  Now you can stretch the footage.

  Note: if the footage is made up of several cuts, the interpretation may be different for each cut. In that case, you’d have to a)cut the footage up in an NLE and import it, then find the pulldown for each cut, or b) duplicate the footage, re-interpret each dupe with its own pulldown appropriate to the desired segment of the footage. Add a comment in the comments column in the Project window to indicate which clip from the dupe has the correct pulldown.

  If that didn’t work, tell us more about the footage, where it came from, how it was shot, was it film, is it stock, and so on.

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