The new Tokina AT-X 107 DX is a full-frame fish-eye lens that gives the photographer 
a field of view with dramatic curvature of field or fish-eye effect. With this 
lens an entire view or vista can be captured, wider than the human eye can see. 
The AT-X 107 opens an entirely new dimension of photography. 
The front element of the AT-X 107 DX has a newly formulated WP or Water Proof 
optical coating on the glass. This new coating makes marks such as spots left 
by water or finger-prints much easier to clean than standard multi-coating.
The rear optical group of the lens contains 1 SD (Super-Low Dispersion) glass 
element to reduce the number of elements (pieces of glass) in the optical design 
in order to make the lens more compact, light-weight and faster focusing. 
Compability:
Nikon and Canon