A camera body allows the mounting of a lens unit configured to form an optical image of a subject, and includes a body mount, an imaging element, a capacitor, and a housing member. The body mount allows a lens unit to be mounted. The imaging element includes a light receiving face arranged to receive light passing through the lens unit, and converts an optical image of the subject into an electrical signal. The capacitor is disposed above the imaging element and more to the imaging element side than the body mount in a direction of the light passing through the lens unit. The housing member accommodates the imaging element and the capacitor. When viewed in a direction perpendicular to the light receiving face, at least part of the capacitor is disposed within a region bounded by the outer edge of the body mount.