This is the least desirable set with Face Detection. When S, M, L, Center or Zone focus areas are assigned, the Face Detection square stays GRAY and inactive when outside of the assigned focus area. If you take a picture the focus will be established in the chosen focus area, not the Face Detection box. The Face Detection box becomes WHITE and active only when the face detection box and the face of the subject is within the assigned focus area. The outline of the box begins as white, when focus is achieved, it turns green. Until you understand what is going on, it is easy to get out of focus images in this setup – you believe face detection is active but it is actually the focus area chosen. It results in faces out of focus.