Method of monitoring digital camera capable of informing user of inadequate photographing

摘要

A method of controlling a digital camera includes performing photographing of an object, determining whether the amount of exposure is appropriate and shakiness is present, and notifying a user of such information if the amount of exposure is not appropriate or shakiness is present. The determination step includes reading a focus value of the object, reading a lower limit value of a compressed file size set to correspond to the read focus value of the object at a compression rate and a resolution set by the user, and determining that the amount of exposure is not appropriate and shakiness is present if the size of a present compressed file of image data obtained from the photographing is smaller than the lower limit value of the compressed file size.