Patent ID: 7918616

Claim:
An image sensing apparatus comprising: an image sensing unit having one or more image sensing regions adapted to receive an object image via a lens unit detachably connected to the apparatus and accumulate the received image as an electric charge; a mechanical shutter unit adapted to travel so as to shield the one or more image sensing regions against light; a scanning unit adapted to perform scanning for sequentially starting the accumulation of the electric charge for each one or more image sensing regions of said image sensing unit; a controller adapted to control the scanning of said scanning unit and said mechanical shutter unit; and a changing unit adapted to change a settable minimum exposure time on the basis of the type of the connected lens unit; and wherein said changing unit makes the settable minimum exposure time longer in the case that the connected lens unit is a type of which information on a pupil position of the connected lens is not obtainable by the apparatus rather than the case that the information is obtainable.