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Auto: If you set Exposure mode as Auto, the Exposure time and Gain control will not be
configurable since the sensor library will automatically adjust the value according to the ambient
light. Then you can configure iris mode as "indoor" or "outdoor" to reach the best image quality.
■ Iris mode
(When the Auto Exposure mode is
adapt to the installation. The preset iris aperture setting will apply.
■ Iris adjustment
(When the Manual Exposure mode is
from Close to Open.
■ Iris Adjustment (this option is available when the Manual mode is selected):
The camera comes with a P-iris lens, which controls the iris opening with extreme precision by
its built-in stepping motor. Via software controls, the lens maintains the iris opening at an optimal
level at all times, resulting in superior sharpness and depth of field as well as image quality.
Once set, the iris will stay at current position as long as the lighting condition allows. When
external lighting conditions exceed an acceptable range, the P-iris mechanism adjusts itself.
selected): Select Indoor or Outdoor iris mode to
selected): Manually tune the aperture size
VIVOTEK
User's Manual - 55
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