On a frigid day in March, an Acela Expess barrels south along the NEC passing "Old Glory" and ducking the signal bridge at Croydon, PA, bound for Philadelphia. A zoom-pan captured at 1/60th.
Pace and pan shots of trains from on the ground or in the air. If you're not in the locomotive cab or on-board the train, it's the next best thing to being there.