Your image looks fine to me John, no problems. I've thought about getting a 35mm Prime just like yours for my D5100. I am not sure I'd use it enough to justify the cost, but having a f/1.8 lens in my kit would be nice in the evenings when loss of light is a concern. I'd have guessed it'd be a fine choice for trains, though to capture a certain composition, it might nudge a photographer to stand in a unsafe spot.