Canon E-82 II 82mm Lens Cap: Canon E-82 II 82mm Lens Cap is a lightweight and reliable cap that is
designed for Nikon AF DX Fisheye-Nikkor 10.5mm f/2.8G ED and AF Fisheye-NIKKOR
16mm f/2.8D lenses. It is a replacement front lens cover for select Nikon
fisheye lenses. It protects the front lens from scratches, fingerprints and the
elements while the lens is not in use. It does not snap into place, but slips on
over the built-in lens hood.