Instructions
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wished to view, resulting in the area being too dark and difficult to see. In this case, users may set the area corresponding
to the portion they wish to see.
FIGURE 2-27: BLC SETTINGS ILLUSTRATIONS
DC Iris Control
DC Iris Control, driven by electric currents, is one of the auto iris modes that helps the surveillance camera to
automatically adjust its iris opening, for better adaptation to environments with constant changes in light levels. There are
2 options below for selection:
1. Auto: Iris opening will alter itself in accordance with the changing light levels within the applied environment to
present a better image quality.
2. Full: Iris opening will be kept within the maximum value regardless of light levels in environment.
NOTE: The DC Iris Control function is available in DC Iris equipped models only.
True WDR
Select On to enable True WDR. This technology is intended to provide a clear image even under the backlight
circumstance where intensity of illumination can vary excessively; namely both extreme bright and dark areas exist
simultaneously in the field of view. True WDR is a sensor-based technology that achieves proper exposure levels by
capturing short and long exposures individually and combining them into a single frame to render a superior detail of
image quality. Note that when True WDR is enabled, the maximum frame rate will be forcibly decreased to 30fps if it was
selected above 30fps originally. NOTE: True WDR is only possible when the Exposure Priority setting is set to Motion.
Day/Night
The Day Night Auto mode setting automatically controls the IR cut filter depending on the Transition Level and Transition Detect
Time settings.
Auto
1. Transition Level: Determines when the camera changes from day mode (color) to night mode (black-white). Select
the “Lighter” transition level setting if you want the camera to change modes at a high lux setting. Use the “Default”
setting for normal day/night operation. Use the “Darker” transition level to change modes at a low lux setting.