6/3/12: On the ride home after an eventful, pain-driven awesome day of Railfanning. I see high mounted headlights and catch a cool combo, C40-8 7569 and SD40-3 4011.
I think when I'm on full telephoto they have a dark effect if there is no sun or it is behind a cloud or something. I kinda dig playing around with those in PS.
I guess Chicago is the Cloudy Onion!