Working with 2:3:3:2 pull-down, Working with 2:3:3:2 pull, Down – Apple Cinema Tools 3 User Manual
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Chapter 11
Working With 24P Video and 24 fps EDLs
Working With 2:3:3:2 Pull-Down
Some camcorders, such as the Panasonic AG-DVX100, are designed to shoot in
progressive mode at 24 fps (literally 23.98 fps), and then record the video to a tape as a
60-field interlaced signal by applying 2:3:3:2 pull-down to it. The 2:3:3:2 pull-down is
similar in concept to 3:2 pull-down, but has a different pattern of field repetition, as
illustrated below.
A
B
A
B B
C
C
C D D
Before 2:3:3:2 pull-down
24 fps frames
One second
A
B
C
D A
D A
B
C
D A
B
C
D A
B
C
D
A B
C D
B
C
After 2:3:3:2 pull-down
NTSC frames (divided into fields)
A A B B B C C C D D A A B B B C C C D D A A B B
C C C D D A A B
B
B
C
C
C D D A
B
A
B B
C
C
C D
B
D
A
B
C
D
A A
B
B
B
C
C
C
D
D
Field
1
Field
2
Field
1
Field
2
Field
1
Field
2
Field
1
Field
2
Field
1
Field
2
UP01101.Book Page 188 Thursday, March 10, 2005 3:16 PM