Fotosky came up with a new Sweep Panorama method for the Sony NEX cameras which gives the final image a fisheye effect. This is accomplished by swinging the NEX in an arc. The camera motion is somewhat like a pendulum. This takes some practice. Fisheye 3D Sweep Panoramas should also be possible. We would love to see some of your samples - email us.
Sony NEX Fisheye Sweep Panorama Sample Photos
Check out Fotosky's gallery for more samples.
These shots do not use the NEX Fisheye Conversion lenses.