Patent ID: 7801432

Claim:
An imaging apparatus comprising: object information holding means for holding a size of a predetermined object included in a subject; imaging means for converting incident light from the subject to a captured image; object detecting means for detecting the object included in the captured image and a size of an object image, the size of the object image being a size of the object in the captured image; object-autofocus-range calculating means for calculating an object-autofocus-range that is a limited movement range of a focus lens based on the detected size of the object image and the size of the object held in the object information holding means; use determination range calculating means for calculating a use determination range that is a range to determine whether detection of an in-focus position of the detected object is to be performed in the object-autofocus-range and that includes the object-autofocus-range; and autofocus control means for detecting the in-focus position by setting the object-autofocus-range as the movement range of the focus lens and moving the focus lens in the object-autofocus-range if a current position of the focus lens is within the use determination range.