37
Recording and Playback: Normal Recording
Recor
d
in
g an
d Pl
ayb
ack
REC button 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 (referred to
as 60i). Images at 25P are recorded as 50i with 2:2 pulled
down. 24PA (2:3:3:2 Advanced Pull down) is supported as
well.
AVC-Intra does not support pull-down recording.
Example of 24P Over 60i
This recording method extracts and records effective frames
at the frame rates of the AVC-Intra recording in 1080i.
Even in Native recording, the rate for outputting camera
images and playback images is 59.94i or 50i that are pulled
down.
Example of 1080-24PN (Native)
Notes
z
The recording will start from the top frame of a five-frame
cycle for 24P/24PA recording or a four-frame cycle for 24P
native recording, respectively. Therefore, the time code may
be discontinued when recording clips continuously in
different modes during the recording cycle.
z
Even if a P2 card has just been inserted, or the power has
been just turned on, you can start recording using the
internal memory of camera-recorder. In this case, recording
cannot be stopped until the P2 card is recognised. If the
inserted card is not recognized as a recordable P2 card, the
record in internal memory is instantly discarded, and the
message “CANNOT REC” message is displayed on the
viewfinder. Pull the MARKER SEL, MODE CHK / MENU
CANCEL switch to check P2 card status (displayed in
viewfinder).
Normal Recording
Normal Recording and Native Recording
Normal recording (Pull-down recording)
Native recoding
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
Ao Ae Bo Be Bo Ce Co De Do De
B
A
D
C
Camera
recording
2:3 pull down
Recording
MARKER SEL, MODE CHK /
MENU CANCEL switch
REC button
AJ-HPX3100G(VQT3A79)_E.book 37 ページ 2010年9月17日 金曜日 午後9時21分