JVC GY-HM150U, Инструкция по эксплуатации

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35
Applicable to: Manual shooting mode
M
You can select the gain of the video amplifier using the
[GAIN] switch on the camera recorder.
The default positions of the switch are as follows.
The light sensitivity can be electrically boosted using the
[GAIN] switch when there is insufficient illumination on the
object. (
3 positions)
Memo :
●
The gain value of each position can be set to
A
AGC
B
and
within the range of
A
0dB
B
to
A
1 8 dB
B
(in increments of 3
dB) using [Switch Set]
B
[GAIN L]/[GAIN M]/[GAIN H] in
the [Camera Function] menu. (
A
Page 66)
●
Boosting the sensitivity causes the screen to appear
grainier.
Automatic Gain Mode (Automatic Gain
Adjustment)
Set the camera recorder to the Full Auto shooting mode to
activate the Auto Gain Control mode (
A
AGC
B
fixed). The gain
of the video amplifier is automatically set according to the
brightness of the object.
In this case, the [GAIN] switch on the camera recorder is
disabled.
Memo :
●
When Program AE is set to [Twilight], the automatic gain
mode is disabled and gain value is automatically set to
A
0dB
B
.
Applicable to: Manual shooting mode
M
The shutter speed can be set to a value according to the
user
’ s preference. When this is set to Auto, the shutter speed
is automatically controlled.
1
Set to the Manual shooting mode.
2
Set to the shutter speed adjustment mode.
●
Press the [SHUTTER] button.
●
The shutter speed that is set in the manual mode is
displayed.
3
Select a shutter speed value.
●
Operate with the [ADJ./VOL.] knob.
●
The selected value is displayed.
4
Confirm the shutter speed value.
●
Press the [ADJ./VOL.] knob.
●
Doing so exits the adjustment mode and the shutter speed is
displayed.
Note :
●
When in the Lolux mode, shutter speed cannot be adjusted
manually.
Setting values
Frame rate 60
1/ 3 .75, 1/7.5, 1/15, 1/ 3 0, 1/60, 1/ 8 0, 1/100,
1/250, 1/500, 1/1000, 1/2000, 1/4000, 1/10000
Frame rate 50
1/ 3 .1 3 , 1/6.25, 1/12.5, 1/25, 1/50, 1/ 8 0, 1/120,
1/250, 1/500, 1/1000, 1/2000, 1/4000, 1/10000
Frame rate 24
1/ 3 , 1/6, 1/12, 1/24, 1/4 8 , 1/60, 1/100, 1/250, 1/500,
1/1000, 1/2000, 1/4000, 1/10000
Setting shutter speed to AUTO
1
Press the [SHUTTER] button twice to clear the display.
Adjusting Manual Gain
[GAIN] Switch Description
[L] 0 dB (No boosting is applied.)
[M] 9 dB (Boosts sensitivity by about 3 times.)
[H] 1 8 dB (Boosts sensitivity by about 8
times.)
USER1
A B
FOCUS
ZOOM
ON
ND
FILTER
OFF
USER2
AF/MF FULL AUTO
GAIN
L-
M-
H-
B-
A-
PRST-
WHT.BAL IRI S A/M
[GAIN] Switch
Adjusting the Shutter
Speed
SHUTTER
ADJ
./V
OL
ADJ
./V
OL
DC
OPEN
REC
PUSH
OI S
SHUTTER
AE ±
ADJ
./ V
O
L.
CLOSE
ACCESS
CAM
MEDIA
[SHUTTER]
[ADJ./VOL.]
Knob
GY-HM150U.book Page 35 Monday, September 5, 2011 1:48 AM