An optical finder unit includes: light guide means for guiding an optical image of a subject to a finder window through an internal space formed in the optical finder unit; and a display unit capable of displaying information on the finder window through the internal space when the display unit is in a set state in which the display unit is set in a predetermined position, wherein the display unit in the set state blocks an opening communicating with the internal space, and the display unit can transit from the set state to a non-set state in which the display unit is not set in the predetermined position but unblocks the internal space.