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NVC-401D, NVC-401D/IR, NVC-421D - User’s manual ver. 1.0
All rights reserved © AAT Holding Sp. z o.o.
11
SETTINGS
5.1.3. SHUTTER/AGC submenu
This menu offers how to control/select SHUTTER and AGC to get the best image for the high
luminance and the low luminance according to the scene.
In
AUTO
mode:
HIGH LUMINANCE
Settings on the medium - and high-brightness side.
MODE (SHUT) Specifies AE control - Shutter. This camera don’t have AUTO IRIS
mechanism, therefore that setting don’t affect on displaying screen.
BRIGHTNESS (0-255)
Sets brightness level.
LOW LUMINANCE Settings on the low-brightness side.
MODE (OFF/AGC)
Allows to switch Auto Gain Control to compensate the video
level when the scene is dim.
BRIGHTNESS Sets the brightness level which starts AGC from (x0.25/0.5/0.75/1.0) of full
video level. If set to x0.50, the camera will start AGC when the video level
goes down below the 50% level.
In MANUAL mode:
MODE (SHUT+AGC)
Defines available parameters for Manual Exposure mode,
SHUTTER (1/10000s - 1/50s) Sets the manual shutter. Manual shutter is only useful when
luminance is unchanged.
AGC (6.00-44.80)
Sets AGC gain in dB. Higher gain make a scene brighter, but noise
increases.
5.1.4. WHITE BAL submenu
This submenu allows to choose appropriate settings depending on various colour temperature
conditions. White balance can be set to 7 modes listed below.
ATW (Auto Tracking White balance) is continuously monitoring/analyzing the colour
temperature of the incoming light and correcting the white balance. ATW limits the
colour temperature range at about 2,500˚K~8,500˚K to reduce the excessive
compensation for the big object which has a single colour.
SPEED
Sets the AWB compensating speed. Lower value makes AWB faster. Too fast
an AWB may force colour oscillation.
DELAY CNT Adjusts the period between updates of AWB. The smaller value will
update AWB more frequently (faster).
ATW FRAME
Determines the ATW range with respect to the fundamental range. A
higher value than x1.00 extends the ATW range at lower and higher colour
temperature.