- Fast, ultra-wideangle rectangular-image lens.
- EX lens series denotes excellence of engineering and new technology.
- The HSM (Hyper Sonic Motor) system ensures quiet and high-speed auto focusing with full time manual focus override.
- The built-in lens hood blocks out extraneous light, and the Super Multi-Layer Coating minimizes flare and ghosting, creating superior image quality.
- A gelatin filter holder at the rear of the lens allows for the use of gelatin filters.