A supporting apparatus includes a supporting member configured to support a movable member, an acceleration sensor configured to detect acceleration of the supporting member, an actuator configured to drive the supporting member, a memory configured to memorize offset data for the acceleration sensor, an offset unit configured to offset an output of the acceleration sensor in accordance with the offset data in the memory, a discrimination unit configured to discriminate whether the offset data should be renewed or not on the basis of an output of the acceleration sensor, and a renewing unit configured to renew the offset data on the basis of the result of the discrimination made by the discrimination unit.