COMPRO NC420, User Manual, Page: 41 / 80

Camera Settings 6-5
Chapter 6: Configuration
There are two adjustable parameters for low light behavior.
•
Maximum Exposure - Adjust the shutter speed by selecting between "Disable" and "30 fps". Lower frame
rate means longer exposure time, which allows more light to be captured by the image sensor. However if
there is fast motion in the scene, increased exposure time will result in motion blurs in the captured image.
Choosing [Disable] will use the default value of max. exposure and max. gain in low-light setting, which are
30 fps and 7.5 respectively.
• Maximum Gain
- This allows you to adjust the gain level between 1 and 8.5 dB. Higher gain level increases
the brightness of the picture but also increases the noise in the picture.
IR Light Control
The network camera is equipped with an IR light sensor (appearing green) and 18 IR LEDs located at the front
of the camera. Therefore it is capable of fitting different lighting situations and providing 24/7 monitoring.
Light Sensor
IR LEDs
Normal lighting
(Indoor lights on)
Without IR LEDs illumination
(Indoor lights off)
With IR LEDs illumination
(Indoor lights off)
Figure 6-4. Effect of IR LEDs
The IR light sensor allows the camera to detect the lighting condition of the environment and to turn on/
off the IR LEDs accordingly; you can configure the IR light operation mode to be [Auto], [Always On], [Always
Off], or [By Schedule].
Figure 6-5. IR light control
For scheduling on/off time of the IR LEDs, you can directly input the desired open and close time, and set the
repeat option to be [always] or [only during time frame]. (In this example above, the system will leave the IR
LEDs on between 19:00 to 23:00 from Monday to Friday.)