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Activity Forums Adobe After Effects HDTV 29.97 to PAL 25p

  • HDTV 29.97 to PAL 25p

    Posted by John Dean on September 4, 2010 at 6:26 am

    I built an animation using After Effects in the following format: HDTV 1080 29.97, 1920×1080 square pixels 16:9. I have now been told that the project my animation is going into was shot in PAL and is being edited in 25p.

    Canmy animation be converted to 25p, or does it need to be rebuilt and rendered at 25p to be usable? Is the pixel ratio (1920×1080) the same for both formats?

    Thanks for your help.

    John Dean replied 15 years, 8 months ago 2 Members · 2 Replies
  • 2 Replies
  • Nick Hill

    September 4, 2010 at 2:34 pm

    Yes, it can – just create a PAL comp, drag your 1080p comp into it and then scale it down. AE “thinks” in seconds, so it doesn’t really matter that you’re comverting from 29.97 frames/sec to 25 – it’ll reinterpret the keyframes on the fly.

    Regarding aspect ratios, it depends: is the PAL destination widescreen or 4:3? Adobe changed the default aspect ratios in CS4, so a 1920×1080 comp dragged into a 16:9 PAL comp will either have black bars either side, or crop a small amount off the top and bottom. It’s up to you which of these is more acceptable.

  • John Dean

    September 4, 2010 at 8:27 pm

    Thanks Nick!

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