An imaging apparatus (1) includes an illumination optical system (100) that includes a light source (110) and is configured to guide light from the light source to a target(B), an imaging optical system configured to capture an image of the target, and a plurality of image sensors (430) arranged on an image plane of the imaging optical system. The illumination optical system includes a plurality of integrators (121,122). Light flux exits from one of the plurality of integrators illuminates at least one of the plurality of image sensors, and light exits from the other integrators illuminates at least one of the plurality of image sensors other than the image sensor illuminated by the light exits from the one of the plurality of integrators.