Wednesday, October 21, 2009

Re: [Avid-L2] Rookie TC question

On Oct 21, 2009, at 4:46 PM, Steve Hullfish wrote:

>>
> If, by "30fps video" you mean NDF timecoded NTSC video, the number of
> frames in a "non-realtime, 30fps counted NDF hour of video" then there
> are 108 more frames, because the "hour" of non-drop frame time code is
> not really an hour, it's just a naming convention. That's why I said
> you were mathematically correct but semantically incorrect. An hour
> (as a unit of time) has an identical number of frames whether it's
> drop from or non-drop frame. It has 108 frames less than 30 (frames)
> times 60 (seconds) times 60 (minutes). If you mean real 30fps video,
> which is really not an acceptable form of video at all - unless you're
> Canon - then there are more frames in 30fps video, but the discussion
> is really about how 29.97 is named in terms of timecode. Bringing a
> different frame rate into it just confuses things, like saying "There
> are fewer frames in an hour of 24fps film than in an hour of 29.97
> video." It just confuses the argument by measuring apples and oranges.
> The point to remember is:

*This* is why I had to do the drawing for my own sanity :)


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