An imaging device includes an optical system, a camera housing defining an opening with an interior storage space, and a flash mechanism connected to the housing. The flash mechanism is movable between an exposed state and an unexposed state. The flash mechanism has a first arm, a second arm, and a light emitting component attached to the second arm. The first arm is located at a first rotational position in the exposed state and is configured to rotate around a first axis located within the interior space. The second arm is located at a third rotational position in the exposed state and is configured to rotate with respect to the first arm around a second axis located closer to the subject than the first axis in the exposed state.