Current flagship phones from Android manfacutres, are pushing for 3 cameras on the back of the phone. One camera is a wide angle, second is the regular, and the third is the telephoto. It is also rumoured that Apple's next flagship phone will make the jump to 3 rear cameras. Google has always been a camera behind on the number of cameras race. The image Google has published of the Pixel 4, shows 2 cameras on the back. However, Google has been able to stay fairly competitive with one less camera, due to there software. So while thinking to myself, a thought dawned on me on how Google can achieve the effect of having 3 cameras, while only having 2.