I am not the least bit bothered with what you believe.LOL . I know I am correct and so does anyone who knows about exposure. F11 at 4000th of a second at ISO 200 is at least 4 EV over full sun clear sky anywhere on this planet..That is unless I have missed something and we have moved 60 million miles closer to the light source.Correct exposure does not change with the colour of an object if you photograph a grey card on a sunny day and it is f5.6 at 500th second at ISO 100 it is the same exposure for a white card and a black card the amount of light hitting the object is the same in all cases only the exposure meter reads differently.But then those who know nothing about exposure think the light meter tells them the correct exposure..no..no.
Unless you are pointing directly into a light source, the Camera is either faulty or it is not set at ISO 200.
45 years photography,printing and developing my friend so I could not care less weather you believe me or not.However I am interested in helping the OP with his question.YOU might have learned something as well eh.LOL