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An infrared (IR) Cut-Filter can be disengaged from the image path for increased
sensitivity in low light environments. The ICR will automatically engage depending on
the ambient light, allowing the camera to be effective in day/night environments.
When the auto ICR mode is set to On, the image becomes black and white.
Auto ICR Mode automatically switches the settings needed for attaching or removing
the IR Cut Filter.
With a set level of darkness, the IR Cut Filter is automatically disabled (ICR On), and the
infrared sensitivity is increased.
With a set level of brightness, the IR Cut Filter is automatically enabled (ICR Off).
The setting of ICR On -> Off (Threshold) can be set when Auto ICR is on.
The setting range is 0 dB (00h) to 54 dB (1Ch).
The conditions for determining whether to enable or disable are as follows.
(When AutoICRAlarmReply is Off)
- ICR Off -> On: When the gain remains at the maximum value (Gain Limit value) for
5 seconds.
- ICR On -> Off: When the gain remains below "maximum value - threshold value"
for 5 seconds
AutoICR is exclusive with AE Manual. AE Manual cannot be set when AutoICR is on, and
AutoICR cannot be set on in AE Manual.
Tamron Co., Ltd.
3.22 ICR (IR Cut-Removable) Mode
3.23 Auto ICR Mode
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