Description of the operating-elements
Control panel - top side of the device
Brightness
By pressing the up and down Brightness keys, you control the brightness
of the image (intensity of the illumination).
If both keys are pressed simultaneously in the distance viewing mode,
the auto-exposure can be switched on/off:
Auto-Exposure on: depending on the current lighting conditions,
the brightness of the camera-image will be adjusted automatically.
Auto-Exposure off: the brightness of the camera-image will no longer
adapt automatically to the current lighting conditions.
Saturation and contrast
By pressing the Saturation keys, the contrast of the image changes.
In Full Colour mode, the Saturation buttons will control the intensity of
the colours.
In Artificial Colour mode, the Saturation buttons will control the degree
of contrast.
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