I have set my camera back button AF-AE Lock button for AF-On and now i focus my pictures by holding that button and not the shutter button and I have assigned my Fn button for AE-Hold as i want my exposure to lock but I am getting confused here that do I have to set my focus and exposure lock at only one point only or I can set my focus on one point and lock my exposure at some other point ? I have attached picture with this post where i lock my focus and exposure on the eyes and you can notice that highlights are blown out on the face so should I have focus on his eyes and lock exposure on his face to get rid of this highlights blown out problem on his face ? Plz Help