1. A calibration system for calibrating at least one of a gray scale, a color scale, and a magnification scale of a first camera sensor of a first digitizer with a second camera sensor of a second digitizer, said calibration system comprising: a test frame comprising at least one of a gray field reference pattern, a color reference pattern, and a magnification reference pattern; said first digitizer for digitizing said at least one of a gray field reference pattern, a color reference pattern, and a magnification reference pattern; said second digitizer for digitizing said at least one of a gray field reference pattern, a color reference pattern, and a magnification reference pattern; and a computer system for compensating for fluctuations in said at least one of said gray scale, said color scale, and said magnification scale between said first camera sensor of said first digitizer with said second camera sensor of said second digitizer in response to said at least one of a gray field reference pattern, a color reference pattern, and a magnification reference pattern digitized by said first and second digitizers.