Sony already supplies the main eight-megapixel iSight camera module on the back of your iPhone 5 and is likely to provide a thirteen-megapixel camera upgrade for the upcoming iPhone 5S, the rumor has it. There's a very good reason why Apple shops for iOS device cameras from Sony: the Japanese giant produces arguably the best CMOS sensors out there.
Case in point: a rumored lens camera accessories reportedly being worked on by Sony's engineers. These things will latch onto your iPhone or Android smartphone and provide your smartphone with a standalone sensor featuring Carl Zeiss optics, the same used by the Nikon 1 system...