Tokina lenses

[Jeff Canes]

Thinking a about getting a wide angle lens for use with my EOS 10D, I have found two lenses so far that I like, from Tokina and Sigma, have used Sigma lenses before and I like them.

Any one have any opinions about Tokina lenses?

Sigma Zoom Wide Angle 20-40mm f/2.8 EX Aspherical DG DF Autofocus Lens

Tokina Zoom Super Wide Angle AF 20-35mm f/2.8 AT-X 235AF Pro IF Autofocus