1. A digital camera comprising: an image capturing unit that photoelectrically captures an image of a subject including a face portion of the subject to obtain image data of the subject; a display unit that displays an image of the subject based on the image data obtained by the image capturing unit; a face portion detecting unit that detects face portion of the subject from the image data captured by the image capturing unit; face portion selecting means that selects a face portion detected by the face portion detecting unit as a main subject to which attention is to be paid; and a control unit that controls the display unit to display a face image of the face portion selected by the face portion selecting means, in enlargement.