Sumix SMX-160x - Manual (Page 52)

When to Use
52 SMX-160 Series USB2.0 Camera User Guide
When to Use
The IR-cut filter is meant for color cameras but can be used for monochrome models as
well. It is a color filter that blocks infrared light. Since the SMX-160C cameras are
sensitive to the IR light, use the filter with color cameras to make image colors more
realistic.
Many light sources, including the sun, emit infrared light, so the color camera in daylight
will “see” significant amount of infrared light without the IR-cut filter. As a result,
strange, non-realistic colors appear.