PHOTOGRAPHING OPERATION CONTROL DEVICE

A photographing operation control device has an electro-developing recording medium to electronically develop an image formed thereon. An exposure calculation is performed based on a photometry value corresponding to an object to be photographed, so that the exposure period of the electro-developing recording medium is determined. When the exposure period is longer than an output period for which a recording medium activating signal for enabling the electro-developing recording medium to develop the image is outputted, it is determined that the exposure of the electro-developing recording medium is impossible, and the photographing operation is prevented and a warning indicating that the photographing operation is impossible is performed.