PURPOSE: To prevent an accident that an exposure is not attained regardless of the completion of photographing.

CONSTITUTION: The camera is provided with detecting means 2, 4a and 4b detecting the state of a pawl folded part 1a and an operation control means not to output a signal for closing a cartridge chamber cover 3, regardless of its state when the folding of the pawl folded part 1 is detected and when the pawl folded part is folded, it is judged that the exposed film cartridge is loaded and an operation for getting ready for photographing is not started.