Apple Cinema Tools 3 - Manual (Page 25)

Chapter 1 Before You Begin Your Project 25
24&1 Method
Adding two extra video fields per second (the 24&1 method) has the advantage of
maintaining the original film speed, at the expense of losing the one-to-one film-to-video
frame relationship. This method records an extra video field every twelfth film frame.
Working With 24P Video
With its frame rate, high quality, and progressive scanning, the 24P video standard is
well suited for use with telecine transfers. It uses the same frame rate as film, providing
a one-to-one relationship between the film and video frames without requiring a frame
rate conversion.
Your Final Cut Pro system needs to be equipped with specialized hardware to capture
24P video, either as compressed or uncompressed clips. Alternatively, some DV
cameras, such as the Panasonic AG-DVX100 camcorder, can shoot 24P video and use
the 2:3:3:2 pull-down method to record it to tape as 29.97 fps (the NTSC standard).
Using Final Cut Pro and Cinema Tools, you can capture this video and remove the
2:3:3:2 pull-down so that you can edit it at 24 fps. See “
Adding and Removing Pull-
Down in 24P Clips ” on page 187 for more information.
Be aware that, when used as part of an NTSC system, the 24P videotape recorder’s
(VTR’s) frame rate is actually 23.976 fps (referred to as 23.98 fps)—the same rate the
telecine speed would be with a normal NTSC transfer.
Timecode Considerations
There are several general issues related to timecode that you should be aware of. If
you’re using NTSC video, you can also choose between two timecode formats.
General Timecode Tips
When using video or audio equipment that allows you to define the timecode setting,
it is recommended that you set the “hours” part of the timecode to match the tape’s
reel number. This makes it much easier to recognize which reel a clip originated from. It
is also strongly suggested to avoid “crossing midnight” on a tape. This happens when
the timecode turns over from 23:59:59:29 to 00:00:00:00 while playing.
Film frames
PAL video frames (divided into fields) Extra fields
One second
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