Patent ID: 8485742

Claim:
A focal plane shutter, comprising: a board including an opening; blades capable of opening and closing the opening; a drive lever swingably supported, holding a movable iron piece and driving the blades; a self-holding type solenoid capable of adsorbing to the movable iron piece by a given attraction force in a non-energized state, and reducing the given attraction force in an energized state, wherein: the self-holding type solenoid includes: a yoke; a coil wound around the yoke, and a permanent magnet secured to the yoke such that the yoke has the given attraction force, the given attraction force is ensured in the non-energized state where the coil is not energized, and the given attraction force is reduced in the energized state where the coil is energized; a biasing member biasing the drive lever to move the drive lever away from the self-holding type solenoid; and a set member moving the drive lever to abut the drive lever with the self-holding type solenoid, wherein the self-holding type solenoid is energized to reduce the given attraction force before the movable iron piece abuts the self-holding type solenoid, and the drive lever is swung by the set member to abut the movable iron piece with the self-holding type solenoid, while the self-holding type solenoid is energized to reduce the given attraction force.