What do you do when a you're photographing a row of 800-year-old icons, and they insist that you make sure and get their good side? On his new blog, photographer Bob Krist, who has shot for National Geographic and Traveler magazines, explains the intricacies of shooting moai statues at Ahu Akivi on Easter Island, which he photographed while on a recent trip with National Geographic Expeditions. Using a million-candlepower flashlight, he "lightpainted" the structures to ensure that they were prop...