haha..i just got my 12-24mm..lol...
this is actually a good lens... no doubt. i sold mine recently thinking of getting a mid-range where it can do from 16 or 17 mm to 50mm. however, after contemplating which lens to buy, i find myself siding again more on the ultra wide factor.... hehehe
now my choice is either to go 11-16 or the sigma 10-20 or 10-22...:dunno: