Camera showdown: iPhone 5s vs. iPhone 5 tested in the wilds of Patagonia

One of our favorite travel photogs, Austin Mann, snapped up an iPhone 5 and flew to Iceland last year in order to pit Apple's latest flagship against its prior king in a bitterly cold camera test. This year, Mr. Mann hopped a flight down to Patagonia in order to pit the iPhone 5s' sensor against ...