Hole in the roof

Framing a shot like this is never easy - not only do you have problems with exposure, but the dark areas of the cave are liable to fool the camera's exposure meter into under- or over-exposing the shot. For this shot, I actually took two exposures -- one at the camera reading (which got the sky properly exposed but everything else a little under-exposed) and another shot with an EV+1 exposure to get just a little more of the cave walls (while not exposing TOO much). In the end, I merged the sky of the first shot with the cave walls of the second shot so I could get just a little bit of blue in the sky instead of having it completely white. Slightly cropped on the left for balance. Nikon D200, AF-S Nikkor 12-24mm f/4