To obtain on adequate exposure in the case of the photographing in a daylight synchronized mode.

By selection performed by a selecting means 13, a first mode in which an opening member 7 opens/closes a shutter blade by a first control part 3b in accordance with the normal and reverse rotation of a motor (m) can be switched to and a second mode in which the member 7 opens the shutter blade in the case of operation for opening and closing the shutter, and a closing member 10 closes the stop blade from a stop position set by a second control part 3d and the selecting means switches the mode from the first one to the second one when operation starts by selecting the daylight synchronized mode.