Patent US 5,852,467

An image signal recording apparatus controlling the transfer of image data from temporary memory to non-volatile memory obtains an image of an object, inputs an image signal corresponding to the obtained image, and temporarily stores the input image signal. When it has been detected that an image signal corresponding to a storable capacity of the temporary storage has been input, the subsequent photographing operation is prohibited. It is thereby possible to securely store an image signal corresponding to an obtained image of an object.