Apple announced its long-awaited iPhone 4S update on Tuesday. While the hardware is a relatively small iteration on the previous iPhone 4—especially externally—the device's new camera hardware and software improvements in iOS 5 give mobile photographers a lot to like.
The updated camera module in the iPhone 4S includes both a new sensor and a new lens. The sensor is 8 megapixels, as was widely rumored before the Apple announcement. At 3264x2448 pixels, it records 60 percent more data than the 5MP sensor in the iPhone 4. While jamming 3 million more pixels on a CMOS sensor generally results in reduced sensitivity and increased noise, Apple stated during its presentation that the iPhone 4S sensor is actually 73 percent more sensitive.