NVC-401D-black User's manual version 2.0
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3.1.4. 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.
ENVIRONMENT Selects INDOOR or OUTDOOR. Their ATW is optimized for the
limited application.
INDOOR Optimized for indoor installation and compensates ATW for low colour
temperature such as incandescent lights.
OUTDOOR Optimized for outdoor sunlit applications and compensates ATW for
high colour temperature such as daylight.
PUSH Allows the camera automatically adjust the white balance under all conditions. Has no
limits between about 1,800˚K~10,500˚K but it may over-compensate the white balance
for the big object which has a single colour. In cases where it goes under 2,500˚K such
as halogen light, ATW may stop. If so, PUSH mode is recommended.
USER1 Fluorescent light fixed gain (3200K) white balance. May be adjusted by R-GAIN and B-
GAIN and useful only for the steady light.
USER2 Outdoor fixed gain (6300K) fixed white balance, May be adjusted by R-GAIN and B-
GAIN and useful only for the steady light.
ANTI CR (Anti Colour Rolling) can reduce colour rolling under the fluorescent light when the
camera operates in shutter control without an auto iris lens.
MANUAL Allows to set B and R gain value manually.
PUSH LOCK Used to find the optimal setting for the current luminance environment. Point the camera
towards a sheet of white paper and press the SET button. Whenever the condition
changes, readjust it.
If the camera is working in an area where energy saving lamps are the only source of light the
scene might be reddish in ATW mode. In these cases PUSH mode is recommended.
SETTINGS
