American Dynamics illustra 600 Installation & Operation Manual page 38

4. Using illustra Utility
low light, but will increase image noise.
About Frame Rate and Exposure Time
In low light conditions, when exposure time is set to a longer interval, the camera's actual frame rate
might drop.
For example, if exposure time is 1/10 and frame rate is set to 30 fps, then under the poorest light
conditions actual frame rate might drop to 10 fps. If exposure time is 1/3.75 and frame rate is set to 7 fps,
actual frame rate might drop to 3.75 fps
IR Filter Control
The camera incorporates an IR filter. On the IR Filter Control page you can specify how the camera
switches between color and black/white modes.
 Auto: Allows the camera to automatically switch between color and black/white modes.
-
Levels: Choose a level that best meets the illumination in your environment. The camera will
automatically switch between B/W and color modes according the system pre-defined Day to
Night and Night to Day thresholds:
Threshold
Levels
Auto High
Auto Mid
Auto Low
-
If you need to customize the thresholds, chose Manual and adjust the thresholds:
-
Day to Night: When the ambient light drops below a user-defined threshold, the IR cut
filter is removed and the camera switches from color to B/W mode.
-
Night to Day: When ambient light increases above a user-defined threshold, the IR cut
filter is utilized and the camera switches from B/W to color mode.
-
Default Threshold Value: Choose if you want use the default Auto Mid level.
30
Day to Night Night to Day
3 8
2 7
1 6
Applications
To switch at higher light
To switch at intermediate light
T switch at lower light
Installation & Operation Guide