To prevent shutter blades from overrunning due to inertia during shutter charge, without having an effect upon shutter precision in a shutter device for a camera.

The shutter device is provided with a plate having an opening for exposure, a blade group which is moved forward and backward between a superposition position where the shutter blade is retracted from the opening for exposure by operation of at least two arms axially supported by the plate and an expansion position where the blade group covers the opening for exposure before the start of exposure, a blade driving member which is axially supported on a side of the opening for exposure of the plate and drives the arms, a charge lever which charges the blade driving member to move the blade group up to the expansion position before the start of exposure, and a cover plate which has an opening for exposure and is arranged so as to be opposed to the plate with the blade group between them, and the cover plate is provided with a blade restraining member which restrains the blade group being in the expansion position from overrunning due to inertia after charging of the blade driving member is terminated by the charge lever.