An image pickup apparatus 10 includes an optical unit 50 in which a plurality of lenses 21 have relative positions fixed by a transparent resin 22 that fills spaces among the plurality of lenses 21, and an image pickup substrate 60 in which a light receiving section 61 configured to receive light that is caused to be incident from the optical unit 50 is formed on a principal surface 60SA, the optical unit 50 being bonded to the principal surface 60SA via an adhesive 25.