In the Smithsonian's Museum of Natural History, of all places, is the show to accompany the new book In Focus: National Geographic's Greatest Portraits. The most fascinating thing to me was the superb printing of many of the images, especially the Kodachromes circa 1940. Some of the best color work I've ever seen. I've never used National Geographic's lab, which sells its services to the public, but now I think I will. This link has a Macromedia Flash slide show of some of the images. If you're anywhere near DC between now and the first of the year, you might want to check it out. Here's a review.