JVC JY-HM360AG, Instructions Manual

Page: 49 / 136

4
Turn the iris dial to adjust the iris manually.
The open F-number of the aperture varies
according to the zoom position.
Wide [W] end : F1.2
Tele [T] end : F2.8
F-number Description
Decrease The subject appears brighter.
The focused range becomes
sharper, while the background is
blurred to produce a soft image.
Increase The subject appears darker.
Background of image becomes
focused as well.
Memo :
0
Pressing the [PUSH AUTO] button during
Manual Iris mode activates One Push Auto Iris
mode. And holding down the [PUSH AUTO]
button activates Push Auto Iris mode.
One Push Auto Iris
When the camera recorder is in Manual Iris mode,
press the [PUSH AUTO] button to adjust the iris
according to the brightness of the object.
Push Auto Iris
When the camera recorder is in Manual Iris mode,
hold down the [PUSH AUTO] button to change to
Auto Iris mode temporarily. The iris will be
automatically adjusted according to the brightness
of the object.
Setting the Gain
This function electrically boosts the light sensitivity
when there is insufficient illumination on the object.
You can set the gain of the video amplifier
according to the brightness of the object. Select the
setting mode according to your shooting
conditions.
.
TIME CODE
GAIN
L
M
H
FULL AUTO
ON
OFF
Automatic Gain Mode (Automatic Gain
Adjustment)
1
Set the [FULL AUTO ON/OFF] switch to
“OFF” to turn off the Full Auto mode.
2
Set the [SCENE SELECT] switch to “OFF” to
turn off the Scene Select mode.
3 Press the [GAIN] button to set to the
Automatic Gain mode.
The sensitivity value (in dB) will not be displayed
in the Auto Gain mode.
Memo :
0
Set the [FULL AUTO ON/OFF] switch on the
camera recorder to “ON” to enter the Automatic
Gain mode ([AGC] 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.
0
The upper limit of the gain setting value during
AGC operation can be set in [Main Menu]
B
[Camera Function]
B
[AGC Limit].
(
A
P87 [ AGC Limit ] )
Manual Gain Mode (Manual Gain
Switching)
1 Set the [FULL AUTO ON/OFF] switch to
“OFF” to turn off the Full Auto mode.
2 Set the [SCENE SELECT] switch to “OFF” to
turn off the Scene Select mode.
3
Press the [GAIN] button to set to the Manual
Gain mode.
0
Use the [L/M/H] switch to set the gain of the
selected video amplifier.
0
The gain level appears on the screen.
0
The default positions of the switch are as
follows.
[L] : 0dB
[M] : 6dB
[H] : 12dB
Memo :
0
You can change the gain value of each position
in the menu. Increasing the sensitivity causes
the screen to appear grainier.
(
A
P87 [GAIN L, GAIN M, GAIN H] )
Adjusting the Iris
49
Sh
ooting