Still photography just got a major upgrade. By downloading a free firmware upgrade from Sony, Nex-3 and Nex-5 owners who have been confined to capturing pictures in two dimensions (width and height) can add depth. Viewed on a big-screen 3D TV from Sony, Panasonic or Samsung, among other manufacturers, the third dimension can elicit jaw-dropping reactions from viewers. I should know. I just witnessed my first 3D slide show.