An image pickup apparatus includes a detector configured to detect an in-focus direction based on a focus signal that results from an output signal of an image pickup device by reciprocating a focus lens in an optical axis direction, and a focus controller configured to provide focusing by moving the focus lens in the in-focus direction. The focus controller is configured to set an amplitude of the focus lens when moving a center of a reciprocation of the focus lens, to be less than that of the focus lens when the center of the reciprocation of the focus lens is not moved.