This second lens also works with the primary lens in wide aperture mode to provide you with variable depth - of - field photos. (zdnet.com)
These cameras when used with wide aperture mode can capture really impressive shots and that is what makes these handsets unique. (gogi.in)
You can use wide aperture mode with the dedicated monochrome camera as well, and it actually works surprisingly well, even at a distance. (androidcentral.com)