Sigma fp packs a full-frame mirrorless camera in a tiny footprint

Camera maker Sigma has revealed its latest mirrorless digital shooter, and it sounds like quite the device. Dubbed the Sigma fp, the company says that this new camera is “the world’s smallest and lightest mirrorless digital camera with a full-frame image sensor.” That a pretty big, if not very specific, boast. Sigma says that the fp has overall dimensions of …