Re: [Avid-L2] Rookie TC question

The confusing thing here is that there's really no such thing as 30fps
except on the web. In NTSC it's ALWAYS 29.97.
I know there's such a thing as true 30fps, but this statement in your
post, when describing drop vs. non-drop - which is what the thread is
- about is deceiving:

> "The difference in the total number of frames between 29.97fps NTSC
> video and exact 30fps video is approximately 108 frames per hour"
>
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:

If you count the number of frames in a realtime hour of drop frame
time code and the number of frames in a realtime hour of non-drop
frame time code, they are identical, but 108 of them don't get named
in DF.

[Non-text portions of this message have been removed]

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