34
Recording and Playback
：
Normal Recording
REC START/STOP button, REC button on the handle or VTR button at the lens starts recording of video and sound on the
P2 card. A cluster of data that consists of video and sound generated through a shooting action, together with such added
information as meta data, is called a “clip”.
In the unit, the camera’s recording method is selectable
between the Native recording method with the frame rate
unchanged and the normal recording method pulling the
frame rate down to 59.94 or 50 frames.
Images at 24P (23.98P: referred to as 24P) are pulled down
in 2:3 mode. Images at 30P (29.97P: referred to as 30P) are
pulled down in 2:2 mode and recorded as 59.94i or 59.94P
(referred to as 60i and 60P). Images at 25P are recorded as
50i or 50P with 2:2 pulled down. 1080i and 480i support
24PA (2:3:3:2 Advanced Pull down) as well.
AVC-Intra (optional) does not support pull-down recording.
Example of 24P Over 60i
Example of 720P 24P Over 60P
This recording method extracts and records effective frames
at the frame rates of the AVC-Intra recording (optional) in
1080i, and DVCPRO HD and AVC-Intra recording (optional)
in 720P.
For 720P, it is possible to record images where the length is
2 to 2.5 times longer than the pull-down recording.
Even in Native recording, the rate for outputting camera
images and playback images is 59.54 or 50 frames that are
pulled down.
Example of 1080-24PN (Native)
Example of 720-24PN (Native)
Normal Recording
Normal Recording and Native Recording
Normal recording (Pull-down recording)
B
A
C
D
Ao Ae Bo Be Bo Ce Co De Do De
Camera
recording
2:3 pull down
= recording
B
A
C
D
A
B
B
C
D
D
Camera
recording
2:3 pull down
= recording
Effective frames
Native recoding
B
A
C
D
Ao Ae Bo Be Bo Ce Co De Do De
B
A
D
C
Camera
recording
2:3 pull down
Recording
B
A
C
D
A
B
B
C
D
D
B
A
D
C
Camera
recording
2:3 pull down
Recording
Effective frame
AJ-HPX2000P(VQT1D27-1)E.book 34 ページ ２００７年７月３０日 月曜日 午後１時３１分
