To provide a drive made up of a smaller number of components, than conventional. [MEANS FOR SOLVING PROBLEMS] An autofocus camera (10) comprises a piezoelectric element (13a), a drive shaft (13b) driven by the piezoelectric element (13a), a movable section (13c) movable with respect to the driven shaft (13b) by the friction with the driven shaft (13b), and a microcomputer section (24) for controlling the supply of power to the piezoelectric element (13a). The microcomputer section (24) operates either in a pre-processing mode in which the microcomputer section (24) computes the amount of adjustment of the time required to supply power in accordance with the moving direction of the movable section (13c) or in a movement control mode in which the microcomputer section (24) controls the drive by adjusting the supply time according to the moving direction and the adjustment amount. In the pre-processing mode, the microcomputer section (24) carries out the control according to the result of detection by a root end sensor (15) to reciprocally move the movable section (13c) with the reference to the root end position (15a) and computes the adjustment amount from the supply time for the forward movement of the reciprocal movement and the supply time for the return movement.