The Lumia 1520 comes with a PureView camera. The Lumia 1520's 20-megapixel camera is a scaled-down version of the 41-megapixel PureView camera included on the Lumia 1020. The sensor is a fairly large 1/2.5-inch in size, but it's smaller than the 1/1.5-inch chip in the 1020, and the lens is a smaller f/2.4 aperture. The flash is a dual-LED unit as opposed to the Xenon flash on the 1020. This results in slimmer and smaller camera module that is not nearly as capable in low light. The 1520 also offers the ability to re-crop and reframe a photo after the fact and zoom in slightly without loss of quality. However, the phone lags in slow autofocus and slow shot time. The 1520 saves two versions of every image, a 5-megapixel one for sharing and a 19-megapixel image for cropping.
Overall, the 1520 takes pretty decent pictures in good lighting and sometimes even in difficult lighting. The phone comes with Nokia's litany of unique camera apps can make picture-taking pretty fun. The latest one, Refocus, lets you control the focus point of an image after it is taken, mimicking the Lytro light field camera.
