For a different perspective, take a look through this Panasonic Lumix G Fisheye 8mm/F3.5 Lens with a Micro Four Thirds mount. With a 180 angle of view, the world is a very different place. And this full-frame Fisheye lens captures that view brilliantly with 10 elements in 9 groups (1 ED lens) to minimize chromatic aberration and distortion, multi-coating to minimize ghosts and flare, and a stepping motor for smooth and silent focusing (especially helpful with video). When used with a Panasonic G Micro System camera, the lens operates with full contrast auto focus, focusing as close as 4".  Seven blades give the aperture a rounded shape that produces an attractively smooth effect in out-of-focus areas (the famous and elusive bokeh).

See recent price change history for the Panasonic H-F008 Lumix G Fisheye 8mm f/3.5.