Patent ID: 7782385

Claim:
An AF-area display apparatus integrated in a lens unit, comprising: an AF-area obtaining device that obtains an AF area currently set in an automatic focusing device; a video signal generating device that generates a video signal for displaying the AF area obtained through the AF-area obtaining device; a video signal outputting device that outputs the video signal generated by the video signal generating device; and a connected image processing apparatus, wherein the lens unit containing the AF-area display apparatus is interchangeably mounted on a camera and has the automatic focusing device for controlling focusing in such a way that the camera is focused on a photographic subject within the AF area in an imaging area of the camera, and the video signal for displaying the AF area, generated by the video signal generating device and a video signal for a picked-up image, outputted from the camera to a viewfinder are introduced to the image processing apparatus, and the image processing apparatus synthesizes the video signal for displaying the AF area and the video signal for the picked up image, superimposes an AF frame indicating the AF area on the picked-up image, and outputs the synthesized video signal to the viewfinder.