The imaging apparatus includes a focus lens, a front zoom lens disposed on a subject side of the focus lens, a rear zoom lens disposed on an image side of the focus lens, a focus drive unit configured to drive the focus lens, a zoom drive unit configured to drive the front and rear zoom lenses, a focus origin point detector provided in a movable range of the rear zoom lens, configured to detect a focus origin point of the focus lens, and a controller configured to control the focus drive unit and the zoom drive unit. When the controller loses track of a position of the focus lens, the controller drives the focus lens in accordance with a relative movement amount of the front and rear zoom lenses by the zoom drive unit to move the focus lens to the focus origin point.