Canon EF Objectif Zoom Grand Angle 17 / 40 mm f/4.

Canon EF Objectif Zoom Grand Angle 17 / 40 mm f/4.
http://www.amazon.fr/dp/B0000C4GAM?tag=jm15-21
Feature
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The EF17-40mm f/4L USM is a lightweight ultra wide angle Canon EF zoom lens. It is especially well suited for use with digital EOS SLR cameras with a focal length conversion factor higher than 1.---
http://www.amazon.fr/dp/B0000C4GAM?tag=jm15-21