NOT to bring this back from the dead, but I hate starting new threads when one's already exist.
I am still looking for a descent wide angle. I have used the following:
Nikon 12-24 f/4 - the version i got was icky soft, had poor color contrast, and was just frustrating; and only works Dx.
Nikon 14-24 f/2.8 - f'in price went up from $1469 to $1649; while I can kinda justify it, sorta, it's too much to swallow right now, combined with the excessive weight, the attention it gets when used in public, and exposed front.
And have largely stayed away from the Sigma line simply because people ***** about their focusing issues, etc.
However, I was at a friend's wedding the other weekend and buddying up with the photographer (obviously, since I was shooting too for fun!) and got a hold of his Canon 5D mounted with the Sigma 12-24 f/4.5-5.6
WOAH - WIDE AS ALL HELL!!!! Wider than the Nikon 14-24!!!
And this Sigma 12-24 apparently only retails for $699 (significantly cheaper than the above examples I have used).
So what's the catch, what are your impressions, etc? Softness, focusing issues, build issues, etc?
P.S. I have considered the Sigma 10-20 and Tokina 11-16 (and even the new Sigma 10-20 f/3.5), but what has effectively eliminated them from consideration: I can't use it on my N75 AND dSLR.
P.P.S. I recognize it won't AF on my D40x, which is fine with me, since I'll be purchasing a D90 in the near future (or a D200/D300, lol, start that debate again?!)