A camera includes: a photographic optical system that comprises a plurality of lenses; an image sensor that captures an image of a photographic subject formed through the photographic optical system; a projection lens unit that projects an image for projection via a projection lens unit, with at least one lens being common to the plurality of lenses of the photographic optical system and to the projection lens unit; and a shift mechanism that sets the at least one common lens to one of a first position upon an optical axis of the photographic optical system and a second position upon an optical axis of the projection lens unit.