Note: This experienced behavior is not caused by a wrong usage or defect, but result of a not optimal factory calibration.
Note: Before start, it might be handy to activate "crosshairs", not all camera models have this. For example you can activate this on a MIC9000i (see below), but not on a AUTODOME IP starlight 5000i IR
In the attached example video we used:
AUTODOME IP starlight 5000i IR
First step is to calibrate the camera:
In the "Camera Calibration" video attached you can see an example of camera’s calibration.
Next step is to properly draw the mask(s):
In the "Draw the mask" video attached you can see how to draw the mask.