A system includes a plurality of cameras and a waterproof housing. The plurality of cameras include a first camera including a first operating member, a second camera including a second operating member which is superposed to the position of the first operating member in the waterproof housing upon storing the second camera in the waterproof housing. The waterproof housing can store whichever one of the first camera and the second camera. The waterproof housing includes a third operating member and a fourth operating member. The third operating member operates the first operating member upon storing the first camera in the waterproof housing, and the fourth operating member operates the second operating member upon storing the second camera.