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By Software

For small systems (a single light canon as we have been discussing so far), software white balance adjustment could prove more convenient because it simplifies the circuitry.

It is done by establishing upper limits for variables R, G, and B (that is less than 255) in software. Once these limits have been set, the program will never attempt to set values beyond those so saturated R, G and B will result in an acceptable white beam.

White balance adjustment must be done using the controls available to the user. The exact procedure has not been designed yet.