A control method for an electronic device such as a digital camera, having
a mechanical driving member comprising a collapsible barrel, a lens
barrier and the like, which performs mechanical operations, and a system
controller which controls the overall device including the mechanical
driving member is provided. In accordance with turning on of power supply
to the system controller, the mechanical driving member is driven until
the device enters a main-operation stand-by status, in parallel to start
of an OS by the system controller.