For those considering the Nikon 14-24mm lens, here's another peripheral selling point - infrared photography. In the infrared part of the spectrum, many wide angle lenses produce a hot spot in the center. I can't explain the technical details, but suffice to say a hot spot is a somewhat light circle in the center of the image. The hotspot can vary in size and intensity and is obviously a bit annoying. The good news is the 14-24mm produces no such hotspots - just a nice clean infrared image. Here's an example.