User Manual CONVISION CC-8xxx Cameras – Firmware 1.2.0
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IR-Cut Filter
The IR-Cut Filter has a several settings, and most are self explanatory.
The Auto Mode (AE) allows adjusting the light sensor’s sensitivity to day/night conditions to fine tune the IR
cut filter operation when the Auto Mode (Light Sensor) isn’t optimal for a specific environment.
In Transfer Threshold are 2 settings:
From Day to Night
and
Back to Day
.
From Day to Night
has a range (+10 Bright to -10 Dark) which can be used to adjust the sensitivity of
switching from day to night. A larger
From Day to Night
value will result in a switching to Night mode in
lighter conditions, a lower value requires darker conditions to switch.
Back to Day
also provides a range (+2-+12) which adjusts the sensitivity of the switch from night to day.
This value relates to the
From Day to Night
; the switch to day mode is based on the
From Day to Night
+
Back to Day
values.
NOTE
:
Auto Mode (AE)
doesn’t differentiate between IR light and visible light. Subsequently, IR light can
cause the IR-Cut filter to switch back to Day mode.
While in night mode, if an object is close the image will appear bright from the IR light and result in the
Luminance Metering
to register a high value which can switch the camera back to Day mode. This is due
to
Auto Mode (AE)
using image brightness.
So, the camera shouldn’t use this setting in environments where objects are close creating a “bright” image.
Alternatively, set the
Back to Day
to a high value to counteract this behavior.
