1.14 Histogram Backlight compensation
This method is best used in cases where the main subject moves about within
the screen image.
1.15 The combination of two types of Backlight makes it easier to arrange
the compensation operation to match the imaging conditions and installation
location.
Note
: Compensation may be insufficient under extremely bright conditions.
8. Infra-Red projection
In a low light environment, a standard color camera cannot obtain a clear picture
with an IR illuminator. This camera has been specially designed with the capability
to accept most IR projection, delivering a clear black and white picture under
absolute darkness.
The Infrared wavelength is from 800nm to 1000nm.
The focus may vary slightly with IR wavelength due to lens diffraction to long-wave.
When installing the camera with an IR projector, please check the focus under IR
illumination and normal light conditions, to find an adequate medium focusing
position.
It is recommended to close the lens aperture one or two stops to increase the depth
of field and compensate for the lens diffraction.
