As creative as a body cap can get; It appears to be a protective body cap for your micro four-thirds camera, but this body cap also doubles as a fisheye lens with an 35mm equivalent focal length of 18mm.
Mount Standard: Micro Four Thirds System Standard
Focal Length [35mm Equivalent Focal Length] 9mm [18mm]
Lens Construction: 5 elements in 4 Groups, 2 Aspherical lenses
Dust, Splash Proof, Freezeproof: No
Angle of View: 140 Degree
AF System: None, Manual Focus Only
Zoom Mechanism: None
Closest Focusing Distance: 7.87"
Maximum Image Magnification: 0.046x
[35mm Equivalent Max. Image Magnification]: [0.092x]
Minimum Field Size: NA
Number of Blades: 1
Maximum Aperture: F8.0
Minimum Aperture: F8.0
Filter Size: NA
Dimensions: Diameter 2.2" x .5"
Lens Rear Cap (LR-2)