Developed for the demands of digital photographers, the EF 16-35mm f/2.8L USM wideangle improves on its predecessor with a shorter beginning focal length, better close focusing capability & improved peripheral brightness in the image corners. All of the "L" lenses deliver optical performance equal to similiar fixed focal lengths lenses, and the USM lenses do this with silent, high-speed focusing. Distortions and aberrations are remarkably small for a lens of such amazing capabilities.

Rear gelatin filter slot

Lens retains the popular 77mm filter size shared by other Canon "L" zoom lenses

Better close focusing than the 17-35mm f/2.8 "L" predecessor

Entirely internal focusing and zooming movement

Dust and moisture resistance is equal to the levels of the EOS 1-V and 1-D cameras

Circular aperture diaphragm produces brilliant out-of-focus characteristics