A digital camera provided with an optical zoom function and an electronic zoom function. In accordance with a specified photographic magnification, a magnification setting section selects a first magnification from a plurality of fixed magnification values which has been set in advance and sets the optical zoom function thereto, and sets a second magnification at the electronic zoom function such that, when the optical zoom function and the electronic zoom function are combined, an image of the specified photographic magnification is obtained. A settable range of magnifications that can be provided by the optical zoom function is constituted by a plurality of sub-regions which form portions of that range. For each sub-region, one magnification value included in that sub-region is selected in advance to serve as the fixed magnification. Consequently, power consumption during zooming can be reduced, and a time difference between a time of instructing photography and a time of actual photography can be shortened.