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81
13. FEATURES OF THE CAMERA SECTION
Ⅲ Outline
The following operation allows the alignment of the shutter
speed of the camera with the variable scanning rate of a
computer monitor or display.
When a computer monitor screen or display is shot with the
camera, a bright horizontal line indicating excessive exposure
is displayed in cases when the scanning rate of the monitor
is faster than the shutter speed of the camera. A dark
horizontal line indicating insufficient exposure is displayed in
cases when the monitor's scanning rate is slower than the
camera's shutter speed.
The scanning frequency of a monitor varies due to various
reasons during the computer operation. Adjust the scanning
rate to obtain a stable image while observing the image in
the viewfinder.
Ⅲ Variable Scan [V.SCAN]
• Basic operation
Set the SHUTTER item on the OPERATION MENU screen
to VARIABLE. Then move the SHUTTER knob upwards or
downwards to change the shutter speed.
(The speed is displayed on the viewfinder screen.)
• Compatible frequencies
The variable scan function is compatible with scanning
frequencies in the following range.
60.1 to 2084.6 Hz (U-ver.)
50.1 to 2067.8 Hz (E-ver.)
This function is not compatible with slow-speed computer
monitors with a vertical scanning speed of 60 Hz (U-ver.)/
50 Hz (E-ver.).
Video monitor
Band
PAGE BACK
--- OPERATION ---
SCENE F I LE A
SHUTTER :VARIABLE
:NONE
:0dB
dB
FAW
GA IN L
GA IN M :9dB
GA IN H : 18
:OFF
SMOOTH TRANS
13-3 Shooting the Screen Image on a Computer Monitor
CAUTION:
OPERATION MENU screen
LIGHT
ON
OFF
COUNTER
CTL
TC
UB
RESET
OPERATE/WARNING
MONITOR
SELECT
STATUSSHUTTER
MENU
FILTER
1 3200k
2 5600k
3 5600k+ND
POWER
NG
G
A
IN
O
U
T
P
U
T
W
H
T
.B
A
L
V
T
R
ON OFF
ALARM
MONITOR
S
A
V
E
S
T
B
Y
H
M
L
B
A
R
S
C
A
M
A
U
T
O
K
N
E
E
P
R
S
T
A
B
O
N
O
F
F
CH-1
CH-2
AUDIO
LEVEL
AUTO IRIS LOLUX
BACK L
NORMAL
SPOT L
STRETCH
NORMAL
COMPRESS
FULL AUTO BLACK
SHUTTER dial
82
13. FEATURES OF THE CAMERA SECTION
This switch allows the gain to be boosted when the illumination
of the subject is insufficient.
The gain should be switched when the brightness is insufficient due to poor lighting conditions.
GAIN SWITCHING
When the GAIN switch is switched, the newly set gain is
displayed for about 2 seconds on the Status 0 or Status 1 screen
in the viewfinder.
Set it to L (0 dB) in normal use.
Ⅲ The gain set for each of the switch positions can be changed
with "GAIN" on the OPERATION MENU screen.
Ⅲ It is also possible to use the ALC function that varies the gain
automatically.
☞ See page 73 for details.
Ⅲ To make the gain transition smoother, set “SMOOTH TRANS”
on the OPERATION MENU to “ON”.
☞ See page 73.
However, note that the SMOOTH TRANS function is not
available if gain is set to ALC.
Switch Position Factory-Set Gain
L 0dB
M 9dB
H 18dB
The LOLUX button is used when the illumination is still
insufficient after compensating with the GAIN switch.
Press the button to enter the LOLUX mode in which the gain is
boosted by about 33 dB.
"LOLUX ON" is displayed for about 2 seconds on the Status 0
or Status 1 mode screen in the viewfinder.
Pressing the button again cancels the LOLUX mode.
"LOLUX OFF" is displayed for about 2 seconds.
Ⅲ When the LOLUX function is in use, the image definition on
the screen will degrade to increase residual images, but this
is not a malfunction.
GAIN BOOST UNDER LOLUX CONDITION
[Relationship between gain, iris and shutter]
POWER
NG
G
AIN
O
UTPUT
W
HT.BAL
VTR
ON OFF
AUTO IRIS LOLUX
BACK L
NORMAL
SPOT L
STRETCH
NORMAL
COMPRESS
FULL AUTO BLACK
H
M
L
S
AVE STBY
BARS C
AM
ON
O
FF
AUTO KNE
E
PRS
T A
B
GAIN switch
F1.4 F11 F16
LOLUX
FULL AUTO SHOOTING
ALC AUTOMATIC IRIS EEI
33 dB 12dB 0 dB 1/50 (E-ver.) 1/200 (E-ver.)
1/60 (U-ver.) 1/240 (U-ver.)
0.7 Lx 32 Lx8 Lx 2000 Lx 4200 Lx 18000 Lx
13-4 Gain (Sensitivity) Adjustment
When gain is set to "ALC", gain is boosted automatically
as the illumination becomes darker. However, noise will
increase a little because the screen becomes brighter as
the ALC (Auto Level Control) function boosts the gain more
than in the case of manual adjustment.
CAUTION:
POWER
NG
GAIN
OUTPUT
W
HT.BAL
VTR
ON OFF
AUTO IRIS LOLUX
BACK L
NORMAL
SPOT L
STRETCH
NORMAL
COMPRESS
FULL AUTO BLACK
H
M
L
S
AV
E STBY
BARS CAM
O
N
O
FF
AUTO KNEE
PRST A B
LOLUX on/off button