• Adobe After Effects

  OMF – 25P vs. 25i

  Posted by Stephen Abbott on November 14, 2005 at 8:49 am

  Hi,

  I’ve been trying to get 25P DV PAL OMF files into AE 6.5 from Avid Express Pro HD, with little success. AE doesn’t seem to handle 25P DV PAL OMFs properly – they come out vertically squashed as discussed in a previous post. Now a new question:

  In looking for alternatives, I’ve re-captured some 25P PAL DV media within a 25i PAL Avid project, and have imported to AE – with success. Setting AE’s Interpret Footage to “No Fields” produces footage identical to the Avid 25P PAL project’s uncompressed QT export – at least visibly.

  So, my question: anyone got any alarms going off saying “Don’t use 25P PAL material in a 25i project/OMF!”. Exactly how different is 25i from 25P PAL, considering all it’s playing out on my 25i monitor nontheless? Anything else I haven’t thought of?

  Regards,

  Stephen Abbott

  Stephen Abbott replied 20 years, 8 months ago 2 Members · 2 Replies
• 2 Replies

• 

  Steve Roberts

  November 14, 2005 at 7:06 pm

  … and if you broadcast progressive footage or CG, it is sent out as two fields … but the two fields are sampled from the same frame: there is no change of motion between them.

  It’s a different look.

  Steve
• 

  Stephen Abbott

  November 15, 2005 at 9:20 am

  Thanks for the replies.
  That clarifies my understanding of PAL 25P perfectly, and answers my workflow problems at the same time.

  Regards,

  Stephen Abbott

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