A digital camera of the present invention comprises a control circuit executing an initialization processing of a recording medium mounted thereon and a series of photographing processings. The control circuit starts the initialization processing of the recording medium when a power of a camera body is turned on, and thereafter, determines presence/absence of an image recording operation regardless of whether or not the initialization processing has been completed. The control circuit starts the series of photographing processings when it is determined that the image recording operation has been performed, then, when either the exposure processing or one or more steps of signal processing is completed, suspends the series of photographing processings to determine whether or not the initialization processing of the recording medium has been completed, and resumes the series of photographing processings when it is determined that the initialization processing of the recording medium has been completed.