1. An imaging apparatus, comprising: circuitry configured to: adjust a focus position of a camera based on at least one autofocus operation on a real subject of a real space in user's view, wherein the at least one autofocus operation includes mechanical adjustment of a lens system of the camera, and wherein the camera is configured to capture an image of the real subject based on the adjusted focus position; acquire focused-position information that indicates the adjusted focus position of the camera; and control, based on the adjusted focus position of the camera, at least one of a binocular disparity or a convergence angle of a stereoscopic image displayed in at least one see-through display.