Hi there!
I am trying to choose wide-angle lens for 10d an I'm a bit confusing. Now i have following choice:
canon ef 16-35 f1:2.8 USM. It is really goot but too expencive as for me
sigma af 17-35 2.8-4 is much cheaper but I'm not sure about quality
also I've found that there are sigma af 15-30 3.5-4.5 that it is quite large (about 130 mm long although 17-35 is just 90mm) and also sigma af 12-24 that is probably too dark (?) f=1/4.5-5.6
So I'm looking for reviews, impressions, advices and so on.
Thanx in advance!