K850i using Cybershot and it has Xeon Flash module in it. But the camera itself quite laggy while the picture quality is not much different in day time to N95 or N900. But Night time the Xeon Flash would make it better. Cybershot is best of picture but not so good with Video, while Carl Zeiss is one of the top lens maker in the world (german) is good on all Picture and Video. All Cybershot camera using Carl Zeiss lens while the SE phones its only just Cybershot without Carl Zeiss lens, that because Nokia has licensed to use Carl Zeiss in its phones.