I really admire this Sony add-in, because it addresses a huge problem, conveniently. Although the iPhones have successively and dramatically improved their camera quality in the past years, there is no comparison to the capacity of a lens from a professional camera. Nevertheless, these professional cameras are more often than not bulky and cumbersome to carry. This tool therefore conveniently marries the two best features of the iPhone and the professional camera: the iPhone’s portability/mobility and the professional camera’s quality.