Wow, you described my issue exactly, when I look down I can see the effect on the top of the screen which doesn't make any sense because I'm not changing my position, only rotation/camera direction. And what good does it make if the effect shows only on the top of the screen that I can barely see it, almost off the camera. It's not normal, not realistic and not even logical. It should be a bug or at least a feature that has been done in the most wrong way. Not sure if the game is supposed to behave like this regarding DoF with everybody, but like you mentioned, I too have been seeing videos with this feature working properly, so IDK. Waiting for a reply.