There was some SWEET light all over the north bay last evening, and as Miguel and I chased around looking for a spot, the fog rolled in and it suddenly got dark. Bust! So, we made our way over to the Benicia Bridge to shoot the trains. We were coming up empty after waiting a good while in the mosquito-ridden, thick brush on this steep hillside and finally decided to pack it up and call it a night.
Just as we were leaving, we heard a very welcome "WOOOOOOO" echo through the strait, and quickly started to setup again. I had no time to check comp nor focus and didn't realize my thumb had changed my aperture from the earlier sets...the train was already hitting the bridge on the far side. Only one chance to get it right, lol.

About the bridge:
The Benicia-Martinez Bridge consists of two automobile and a railroad bridge spanning the Carquinez Strait west of Suisun Bay. Between the two vehicle bridges is a railroad bridge owned and operated by the Union Pacific Railroad. The railroad bridge was the first bridge at this location, built between April 1929 and October 1930 by the Southern Pacific Railroad. It is used by Union Pacific and BNSF (trackage rights) freight trains, as well as 36 scheduled Amtrak passenger trains each weekday. Passenger trains include the long-distance trains California Zephyr and Coast Starlight as well as Capitol Corridor inter-city commuter trains.(from Wikipedia).

This is a single, 130-sec exposure, shot with the Pentax 645D medium format. To keep from burning the lights too hot while waiting for the train to cross the bridge, i covered the lens with my hand for a bit to "pause" the exposure. I don't remember which lens I was using but I think it may have been the old Pentax A 75/2.8.