1. A camera apparatus, comprising: circuitry configured to output first image signals for displaying a first image corresponding to an image by captured image signals; and output second image signals for displaying a second image including imaging information simultaneously with the outputting of the first image signals, wherein the second image signals include a modification of the captured image signals and are image signals transmitted as return signals, the return signals being image signals that are transmitted and then returned to the camera apparatus from an off-camera apparatus, and the second image is an image that includes one of a location of a focus adjustment in the first image and an enlarged image corresponding to a part of the first image.