Patent ID: 7646420

Claim:
A digital camera comprising: a first photographing system that includes a first image pickup device which picks up an image of a subject, and a first lens which forms the image of the subject on the first image pickup device; a second photographing system that includes a second image pickup device which is substantially identical to the first image pickup device, and a second lens which is substantially identical to the first lens; and a focus adjustment control unit that performs a focus adjustment when photographing the subject by at least one of the first photographing system and the second photographing system, by utilizing both the first photographing system and the second photographing system, wherein: the focus adjustment control unit drives the first lens so as to move from a first predetermined position side at which the first lens is to be located when a focusing position is one end of a predetermined photographing distance range, toward a second predetermined position side at which said first lens is to be located when the focusing position is the other end of the photographing distance range, and drives the second lens so as to move from the second predetermined position side toward the first predetermined position side, and performs the focus adjustment on the basis of the image of the subject obtained by the first image pickup device during the movement of the first lens and the image of the subject obtained by the second image pickup device during the movement of the second lens, and the focus adjustment control unit calculates, as a first evaluation value, contrast of the photographed image of the subject formed by the first image pickup device during the movement of the first lens, and calculates, as a second evaluation value, contrast of the photographed image of the subject formed by the second image pickup device during the movement of the second lens, and moves the first lens and the second lens to a focal position at which at least one of the first evaluation value and the second evaluation value is maximized.