View through Caltrain tunnel #2, from just south of the 22nd Street station. In the distance you can actually see daylight on the other end of tunnel #3, a couple of miles away. Through the magic of telephoto optics, these tunnels look a lot shorter here than they feel when you’re going through them riding the train.

Shot with the Nikon D70s and the 18-70mm f/3.5-4.5 zoom at 70mm, ISO 400, f/5 shutter 1/400 sec. White balance, exposure, contrast, and highlights adjustments in Aperture.