An imaging apparatus includes: an image sensor having a plurality of light receiving elements arranged therein; a light shielding member disposed between an imaging optical system and the image sensor, the light shielding member configured to make only a light flux, which has passed through a predetermined area of the imaging optical system, incident on a first light receiving element which is a part of the plurality of light receiving elements; and an image generation device configured to generate an image of a subject from an imaging signal of the first light receiving element, in which the light shielding member is a plate-shaped member having a first light shielding material configured to shield a light flux, which has passed through an area other than the predetermined area, formed therein.