Nokia Lumia 1020: smartphone photos to appear in National Geographic "When they called and said, "we're going to give you a phone and run one of the images in National Geographic," I almost hung up," Alvarez told The Telegraph. The biggest challenge of using a camera phone initially was a mental one. But the results have been incredible. Getting these results from a smartphone, at a magazine resolution, is stunning," he said. Of his visit to the Horseshoe Bend of the Colorado River in Arizona, he added: "Boaters were camped all the way down on the Slickrock, and in my pictures you can count their sleeping bags even though they were 800 feet below me." The pictures are on display now for a week at the National Geographic shop in Knightsbridge, London, and an image from the shoot will feature on the inside front cover of National Geographic's 125th anniversary edition in September. The full set of images are available here. Stephen Alvarez" starter tips for shooting with a camera phone: Think about perspective and what you have in the background. Changing perspective doesn't have to mean running over to a completely different spot; it could just be a small movement with the phone so the background is altered slightly. Notice the light. As a photographer you don't want to sit in the good light but where you can see it. Shoot often and don't stop after your first picture. Look at your subject more than the screen.