Sigma 10-20mm f/4-5.6 EX DC HSM

This super wide angle zoom from Sigma is given the 'EX' denotation, indicative of its quality. The lens is designed for digital crop cameras, and at 10mm this lens is equivilant to a 16mm view on conventional 35mm cameras.

The lens has HSM focussing, so it is a very responsive, quick and quiet zoom. I haven't had a great deal of time to use this lens thus far, so more comments will follow soon.

A few random photos (from gallery 'Canon G2 Gallery' taken with this lens (click thumbs for bigger versions):