Hi Doug,
I newly bought canon 40D body upgrading from 300D and want to upgrade my zoom lens from to 28-135 IS to a better one and couldnt make a decision to buy 17-55 efs 2.8/24-70 2.8/24-105 IS and after seeing your photos taken by 24-106 i take my fianal decsion to buy 24-105.
thank you and congragulations for your great photos.
Afshin from Iran