Finally got my self a 5D MII ,
didn't realize the 10-20mm sigma was a crop sensor lens (bummer).
Have had a quick look around some other photo forums and am undecided on what i should look to getting to replace the siggy.
ideally UWA that i can easily interchange between 60 D and 5DMII.
Price wise really dont want to go over $600.
Have found a lot 5DMII owners go for the 17-40 L,HAVE ALSO SEEN A FEW HAVE GONE FOR THE SIGGY 12-24MM(seems to be the FF version of the 10-20mm)?
Have also had a bit of a looksee at some of the primes around,20mm,24mm siggy and canon.
Mainly lens will be for landscape photography and night shots.
so any other 5DMII owners, what do you have and use for your wide angle scapes???