Toshiba ik-hd5e 用户手册
14
6. 4 Gain
When the image is dark even if the lens iris is open, change the gain (video gain) to get the desired video level.
For gain adjustment of the unit, AUTO (Automatic gain control), MANUAL (Manual gain control), OFF (0 dB) modes
are provided. Select the mode on the GAIN menu. (Refer to the item “7.2 (2) GAIN (Video gain)”.)
For gain adjustment of the unit, AUTO (Automatic gain control), MANUAL (Manual gain control), OFF (0 dB) modes
are provided. Select the mode on the GAIN menu. (Refer to the item “7.2 (2) GAIN (Video gain)”.)
1
AUTO (Automatic gain control)
When the output is low, gain is automatically adjusted to a suitable video level.
You can set a value for the maximum gain from 0 dB to 20 dB in 1 dB increments. You can set a value for the
minimum gain from -15 dB to 0 dB in 1 dB increments. (Refer to 7.2 (2) (2.1) "Changing settings in the AUTO
(AGC: automatic gain control) mode.")
Video level (LEVEL), exposure metering (PHOTOMETRY), peak average value ratio (PEAK/AVE), measurement
light area (AREA), and response speed (SPEED) are linked to the setting on the automatic shutter. (Refer to the
item “7.2 (1) (1.1) Changing the setting in AUTO mode”.)
You can set a value for the maximum gain from 0 dB to 20 dB in 1 dB increments. You can set a value for the
minimum gain from -15 dB to 0 dB in 1 dB increments. (Refer to 7.2 (2) (2.1) "Changing settings in the AUTO
(AGC: automatic gain control) mode.")
Video level (LEVEL), exposure metering (PHOTOMETRY), peak average value ratio (PEAK/AVE), measurement
light area (AREA), and response speed (SPEED) are linked to the setting on the automatic shutter. (Refer to the
item “7.2 (1) (1.1) Changing the setting in AUTO mode”.)
2
MANUAL (Manual gain)
Gain adjustment is performed on the GAIN menu. The adjustment range is from -15 to 20dB in 1dB steps.
(Refer to the item “7.2 (2) (2.2) Changing gain in MANUAL mode”.)
(Refer to the item “7.2 (2) (2.2) Changing gain in MANUAL mode”.)
3
OFF
Gain is fi xed at 0 dB.
Gain button
1
If the [GAIN] button is pressed, the current gain setting is displayed for approx. 3 seconds.
GAIN menu
:
OFF → GAIN OFF
:
AUTO → GAIN AUTO
:
MANUAL
dB → GAIN dB
* “ ” shows the setting gain in MANUAL mode.
2
If the [GAIN] button is pressed again while the current setting mode is displayed, the gain mode can be changed.
GAIN of MAX GAIN, MIN GAIN in AUTO mode and MANUAL mode can not be changed.
OFF
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䊲 AUTO 䊲
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䊲 MANUAL
Note:
White, red, green, or blue dots may occur when the gain is increased. This is not a malfunction, just certain
characteristics of the CMOS sensor becoming more visible.
White, red, green, or blue dots may occur when the gain is increased. This is not a malfunction, just certain
characteristics of the CMOS sensor becoming more visible.