The present invention provides an imaging device including an electric light control device disposed between lens groups, a CCD photosensitive surface and including a liquid crystal cell which contains at least a dye pigment for providing a predetermined light control range, a CPU for supplying an applied voltage to place the electric light control device in the predetermined light control range based on amount-of-light information obtained from the CCD, and a numerical parameter value table for storing a numerical parameter value relative to a threshold value for a transmittance of the electric light control device in order to generate the applied voltage to be supplied from the CPU to the electric light control means.