As a frequent landscape photographer, I've enjoyed exploring HDR (High Dynamic Range) imaging for quite some time. With HDR, your camera takes multiple images, usually at different shutter speeds, to capture both bright and dark areas at their best. Then the images are combined with software. Although most of my work is with a Canon DSLR, I've been impressed with some of the iPhone HDR apps that can help you get some really nice pictures under difficult lighting conditions.
Although Apple includes HDR software in the iPhone 4, I've found that both Pro HDR and TrueHDR can give superior results.
