Abstract: An imaging apparatus comprising: a body to and from which an optical system is configured to be attachable and detachable; an imaging sensor configured to capture a subject image via the optical system to generate image data; an input interface configured to acquire a zoom amount indicating a degree of a zoom operation by a user for the optical system; and a controller configured to scale a cropped image from the image data so as to implement a hybrid zoom operation which changes, from a first focal length, a second focal length, according to the zoom amount acquired by the input interface, the first focal length being formed by the optical system and the second focal length corresponding to an angle of view of the subject image in the image data. The controller is configured to maintain a characteristic of the second focal length with respect to the zoom amount before and after the optical system is changed.