How to Improve Your Wide-Angle Digital SLR Shots
Use the vertical.
Don't be afraid to switch your camera to a vertical (portrait) orientation, even when shooting wide-angle shots. This HDR shot (10mm/15mm) was taken as the photographer was walking down the north ramp toward the entrance to the Gateway Arch in St. Louis, Illinois. The entire arch extends up, travels overhead, and then comes down behind the photographer, which is at the top of the photo.