First of all, I know there were already plenty of topics discussing these lens, but as I get closer to actually buying them, I get confused about the massive information from all the topics that come out when I do a search.
So... Forgive me.
I ruled out the canon 10-22, because its just too expensive, considering its aperture as opposed to the tokina (2.8 all the way).
Although I shoot mostly outside (landscapes, and this is what this lens will be primarily used for), I still cant reach a decision - whether I need the 3.5 of the newer sigma, or even the 2.8 of the tokina, and in this case, giving up some of its range. (I also heard somewhere that the tokina has better optics - is that true?)
I am currently using a 450d + 17-55 f/2.8, and I dont consider moving to full frame any time soon.
Please help me with my decision, thanks a lot!