The 17 40mm is a lightweight ultra wide angle Canon EF zoom lens. It is especially well suited for use with digital Canon EOS SLR cameras with a focal length conversion factor higher than 1.

Canon ef 17 40mm features

Superb optical performance throughout the zoom range.
Fastest AF speed within its class (same as the EF16-35 f/2.8)
Highly dust and moisture resistant
28cm minimum focusing distance at all focal lengths

The Canon 17-40mm includes:
Lens Hood, Soft Lens pouch, Front and rear Lens caps and User manual

Canon 17 40mm reviews

- Awesome build quality, great for landscapes / cityscapes - Ben, London

- Sharp lens, a good general purpose lens on a Canon Crop sensor camera. Much less barrel distortion than the lens it replaces and sharper as well. - John, Cricklade