Apple Final Cut Pro 5 - Manual (Page 27)

26 Part I An Introduction to Final Cut Pro
About Drop Frame and Non-Drop Frame Timecode
With the exception of timecode used with NTSC video, all video formats use non-drop
frame timecode, which simply counts at the frame rate of the video itself. For example,
PAL video runs at 25 fps, and it uses 25 fps timecode.
When working with NTSC video, you have the option to use drop frame timecode to
compensate for the fact that NTSC video has a frame rate of 29.97 fps, while the
timecode runs at 30 fps. Timecode can only be represented by whole numbers, so drop
frame timecode periodically skips numbers so that the timecode count and the
amount of actual time passed stays in sync. This way, the timecode count matches the
the number of hours, minutes, and seconds that it takes for your video footage to play.
NTSC video can use either drop frame or non-drop frame timecode.
Important: No video frames are dropped when you use drop frame timecode. Only the
associated timecode numbers are skipped.
To determine the type of timecode used in Final Cut Pro:
 Non-drop frame timecode has a colon (:) between the seconds and frames fields, and
no numbers are dropped from the counter.
01:16:59:29, 01:17:00:00
 Drop frame timecode has a semicolon (;) between the seconds and frames fields, and
two timecode numbers are skipped from the frames counter each minute (except
every tenth minute).
01:16:59;29, 01:17:00;02
A clip’s timecode comes directly from its media files. To set sequence timecode, you can
use the Drop Frame checkbox in the Timeline Options pane of Sequence Settings. For
more information, see “
Changing Timeline Display Options ” on page 122
How Drop Frame Timecode Works
When you use drop frame timecode, numbers :00 and :01 are skipped at the
beginning of each minute, unless the minute number is exactly divisible by 10. The
dropped numbers do not appear in the timecode fields in Final Cut Pro because
they’ve been dropped and are not on your tape.
If you’re entering timecode to navigate and inadvertently type a timecode number
that doesn’t exist in drop frame timecode, Final Cut Pro automatically moves forward
to the next available timecode number.