A medical apparatus (1) includes: a first illumination window (17) through which a first illumination light from a first light source (3) is irradiated to a subject a second illumination window (23) at different position than the first illumination window, through which a second illumination light from a second light source (16) is irradiated to the subject an electronic image pickup section (15,14) which picks up subject images an image creation section (64) which generates observation images based on image pickup signals obtained by the electronic image pickup section a light adjustment section (51) which synchronously adjusts respective amounts of illumination lights irradiated from the first and second illumination windows and a control unit (50) which controls the light adjustment section or image creation section to maintain color tone of the observation image to a predetermined one according to increase/decrease of the illumination light amount from the first illumination window.
