A camera includes a movable lens barrel arranged to be moved by a driving force of a drive source, a barrier arranged to be shiftable between a closed state and an open state on a locus of movement of the movable lens barrel, a control part arranged to cause the movable lens barrel to be forcibly moved from an initial position to a predetermined position in response to an operation to open the barrier, and a blocking part arranged to allow the movement of the movable lens barrel from the initial position to the predetermined position when the barrier is open, and to block the movement of the movable lens barrel from the initial position to the predetermined position when the barrier is not open.