Well I started really lookin into UWA's as the start to my high end lens collection. At first I settled on the sigma 10-20, then changed to the tokina 12-24. Now I am rethinking my reasoning on the Tokina (thinking ahead to FF? better build?) but wait, I don't ever want to go FF, I want to shoot sports. So what was I thinking? But I do want to go 1D.
So, does the Sigma have an "efs" mount, or will it still be compatable with the 1dmII?
Also, everyone gets into detail about the tokina and canon, their exact flaws and such, but are there any problems with CA and what not with the sigma? Also is the HSM much better than... not?
I really think I want the Sigma, but only if I can keep it for a long time.
Thanks for any help