VIVOTEK - A Leading Provider of Multimedia Communication Solutions
User's Manual - 57
Exposure Settings
User can choose Auto, or manually set Shutter Priority, Iris Priority, AGC priority, and BLC�
Auto: Select the sensitivity of IR cut lter (Low, Medium, or High).
The Network Camera automatically adjusts the iris and gain in response to different environments�
Depending on ambient lighting conditions, select either to enable WDR or the back light compensation�
Enable WDR (Wide Dynamic Range): Select this option to enable the WDR function� With WDR, the
Network Camera can cope with very challenging lighting conditions by combining the dark and bright
parts of an image to generate a realistic image representative of what is seen with the human eye� Note
that if you select this function, Back light compensation and Enable image stabilizer will be disabled�
Shutter Priority: Select a proper maximum exposure time according to the light source of the
surroundings� The exposure times are selectable for the following durations: 1/30000 ~ 1/2 second�
Shorter exposure times result in less light�
Select this option to adjust the desired shutter speed and allow the Network Camera to select an
appropriate iris and gain to obtain the correct exposure� Adjust the shutter speed from 1/2 second
(slowest) to 1/30000 second (fastest)�
Iris Priority: Select a proper F-number (F1�4 ~ F32) according to ambient light�
F-number = Focal length / Iris diameter (lens aperture)
The greater the F-number, the shorter the iris diameter, and thus the less light admitted to the sensor�
Therefore, smaller F-number would be recommended for low-light applications�
AGC Priority (Auto Gain Control):
You can manually set the Max gain (0 dB ~ 30 dB)�
Back Light Compensation: Select "ON" and set a level (-5 ~ 5) according to the ambient light�
Day/Night Settings
Switch to B/W in night mode
Select this to enable the Network Camera to automatically switch to B/W during night mode�
IR cut lter
With a removable IR-cut lter and built-in IR illuminators effective up to 15m, this Network Camera can
automatically remove the lter and turn on the IR illuminators to let IR light into the sensor during low
light conditions�
■ Auto
The Network Camera automatically removes the lter by judging the level of ambient light.
■ Day mode
In day mode, the Network Camera switches on the IR cut lter at all times to block infrared light from
reaching the sensor so that the colors will not be distorted�
■ Night mode
In night mode, the Network Camera switches off the IR cut lter at all times for the sensor to accept
infrared light, thus helping to improve low light sensitivity�
■ Schedule mode
The Network Camera switches between day mode and night mode based on a specied schedule.
Enter the start and end time for day mode� Note that the time format is [hh:mm] and is expressed in
24-hour clock time� By default, the start and end time of day mode are set to 07:00 and 18:00�