While looking at the preceding image, I thought that this really should be somewhat tighter. So I used the 300mm f4.0 and made a 3 image stitch (I love those 18MP images:-) I really think this was my single best image of the trip. The photographer in the image is using a 4"X5" view camera (rails are visible in the full image) to take a classic "Knife Edge" shot of a dune: http://images.google.com/images?q=sand+dune&hl=en&lr=&sa=N&tab=ii&oi=imagest

This image was take just seconds before the sun started to dip under the horizon and the colors are vary accurate though many do not believe me.