To solve the problem in which when centering processing of a shake correction unit is executed in synchronization with a photographing instruction from a user, the start of exposure needs to be delayed by a time required for the processing, so that a release time lag increases.

An imaging device comprises: a position acquisition unit that acquires the position of a correction unit for optically correcting a shake; a change unit that changes shutter speed on the basis of the position acquired in starting exposure; and a photographing control unit that executes a photographing operation based on the changed shutter speed.