This kind of camera was not first produced by Sony at all, but by Panasonic. Panasonic launched the first mirrorless camera, and mirrorless cameras do not actually have an electronic viewfinder, including Sony’s mirrorless cameras. There are also models without electronic viewfinders. In addition, judging from the current development trend, mirrorless cameras are not necessarily microscopic. Including Sony, professional mirrorless cameras have a tendency to become larger and larger. In short, a mirrorless camera is not necessarily microscopic, it does not necessarily have an electronic viewfinder, and it is not the first one produced by Sony.