Jeff Wignall (http: //www.jeffwignall.com) is a writer and photographer and author of numerous bestselling books on photography, including: "The Joy of Digital Photography" (Lark Books, 2006), "The Kodak Most Basic Book of Digital Photography" (Lark Books, 2006), "The Kodak Guide to Shooting Great Travel Pictures" (Fodor's Travel Publications, 2003) and the million-copy bestseller "The Joy of Photography" (3rd edition). He has been writing about photography for more than 30 years and is a former "Camera" columnist for the Sunday New York Times and the former technical editor of Photo District