1. An electronic camera comprising: a zoom changing unit configured to change a focal length of a zoom lens; an image-capturing unit configured to execute photoelectric conversion for a subject image projected by the zoom lens onto an image-capturing area; a range finding unit configured to detect a distance to a subject; an input unit configured to input a printing size; a zoom control unit configured to control the zoom changing unit based upon the printing size that has been input and the subject distance; and a display monitor at which a range indicator mark indicating a range substantially corresponding to the printing size superimposed on the subject image are brought up on display when the focal length of the zoom lens is at a maximum and a size of a range of the subject projected almost over an entirety of the image-capturing area is larger than the printing size.