Never know why people like it blurry last time I looked over a vast landscape with my eyes it didn't look blurry but maybe that just my tastes
Well that's it. Your eyes do this, you just don't see it as blur. But then your eyes see in 3D (because you have two, each seeing the same thing from a different perspective) whereas a PC screen is 2D so blur is really all one can do to achieve a 'focus' effect like your eyes. Watch a 3D film without your glasses on - look at the distant out of focus objects. They're blurred. This blurred ENB DOF effect might not be dead realistic but it looks great and improves the graphics vastly in game IMO. Besides, it always looks more exaggerated in still images, especially when I purposely set the two characters as the subject of the screen shot
Just looking out of my window, if I focus on the window frame, the houses opposite go out of focus and sort of blur. This is all the ENB DOF tries to emmulate.