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Frame recording and field recording
With frame recording, the image of one camera is
recorded in two fields, and after leaving a fixed
interval, the image of the next camera is recorded.
With field recording, the image of one camera is
recorded in one field, and after leaving half of the
interval for frame recording, the image of the next
camera is recorded.
The gaps between the recorded images are shorter
which enables the cameras to be switched in half the
time taken by frame recording.
Example where cameras 1 to 4 are connected
A
B
Actual image
Camera
No.1
Frame
REC REC
recording
Camera
No.1
1/2
Field
REC
recording
C
D
E
F
G
Camera
No.2
1
REC REC
Camera
Camera
Camera
No.2
No.3
1/2
1/2
REC
REC
H
I
J
K
L
Camera
No.3
1
REC REC
Camera
Camera
No.4
No.1
No.2
1/2
1/2
REC
REC
REC
17
M
N
O
P
Q
Camera
No.4
1
1
REC REC
Camera
Camera
No.3
No.4
1/2
1/2
REC
REC
R
1/2
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