I took this picture this morning with my D600. I was using a tripod, shot it with my 50mm f/1.8D lens at ISO 200, f/8.0, 3.0 Sec., 0 EV, no flash. I did a bit of clean up in post processing, mostly to emphasize the detail inside the tunnel... I'm still learning, so I'd love some thoughts from some of you who know what you're doing (unlike me)...
Here is the shot:
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Here is the shot: