Lumens Technology VC-B20DU - Manual (Page 13)

English - 12
4.2.1.4 Precautions for installation
1. Before installation, please confirm the orientation of the
machine relative to the object to be captured
2. It is recommended that the machine should be set at a distance
of more than 1 meter away from the object to be captured.
Please adjust for a best distance according to the magnification
of the lens