For landscapes I was recommended the canon 17-85mm IS. I remember it being about $800 and now I've seen it for about $600.
I tried to do a search for some reviews here, but there were a lot of other lenses brought up.
So I'm wondering, I have a the canon rebel XT. What would you recommend and what have you used to produce nice landscape shots? The only other lenses I own is the kit lens and a 50mm 1.4 which I love for portraits. I only really want to do portrait shooting and landscapes so I'm trying to figure out a good lens for that and then I'll be set 
I'm still a dummy when it comes to these numbers... I've read that this is the equivalent to a 28-135mm. I'm not sure what that really means, and would the 17-85 mm take panoramic type shots? Anyone have any examples? (actually I'll go dig through the landscape forum and see if I can find any)
Thanks in advance.
edit: change all 17-85 to 10-22mm sorry
That was the one I meant.

I'm not saying that a kit lens wouldn't work, but if there is a "better" lens out there that makes taking landscapes much easier and just turn out better.

