A photographing system comprising a photographing-method input unit, a
temporary exposure time setting unit, and an actual exposure time setting
unit. The photographing-method input unit receives input of a
photographing method. The temporary exposure time setting unit stores a
look-up table in which the kind of photographing method is caused to
correspond to a temporary-photographing exposure time that is used to
obtain an appropriate actual-photographing exposure time. The temporary
exposure time setting unit also obtains the temporary-photographing
exposure time in accordance with the kind of input photographing method by
making reference to the look-up table and inputs the obtained
temporary-photographing exposure time to a camera controller. The actual
exposure time setting unit sets an actual-photographing exposure time,
based on a temporary-photographing image signal obtained in temporary
photographing controlled by the camera controller in accordance with the
temporary-photographing exposure time.