In addition to announcing the Nokia Camera app and RAW support for the Lumia 1020 and 1520 (read about that here), Nokia made one other camera-centric announcement that had us perking our ears up: the company also introduced a Lytro-like refocusing camera app called Nokia Refocus Lens.
Initial reports were a bit confusing, but it looks like Nokia Refocus Lens is indeed a stand-alone app and not (at least not yet) a part of the new Nokia Camera app. Details are still slim, but the company has launched a dedicated Refocus site to demonstrate what the app can do.
Basically, this will be yet another software-based version of the Lytro-inspired “shoot first focus later” approach. Since there isn’t any light-field technology built into the cameras, the system works by analyzing the scene and taking anywhere from two to eight pictures, which it then stitches together intelligently into a focusable final image.
The Lytro inspired first focus feature. Where at any point, whether you are up close and like in the photo above, a city far away in the background. Usually it's either one or the other that is in focus, but the Nokia Camera app will take a series of photos if it has too, to stitch together. Ultimately to make the perfect in focus image.