10-22 mm or 16-35 mm for 7D

[Andrew]

I think a 10-22 is pretty extreme for a wide angle to use for landscape photos if you don't have experience with one. Unless you've used one before you might find the distortion more than what you wanted for landscapes. Verticle lines on the sides will be bent quite a bit. The 16-35 is a bit narrower view, the distortion won't be as much and a big consideration also has to be that it is a much faster lens. If you can't borrow or rent one to check, see if the store will offer to exchange the lens if you don't like it. You can't lose that way but I still think yould be better off with the longer one. You don't say what other lenses you have so I have to assume there's no other wide angle and your closest would be a 50. Stay close unless you've seen examples of what you want to do creatively. Less disappointment that way.

[Hillbillygirl]

I would tend to agree wholly with Andrew on this one. The 16-35 "is" that much better of a lens for quality and build, and as you yourself said, will work with FF "when" you get there. I shoot with Canon also, and I have nothing but "L" lenses in my bag.(learned that lesson long ago). I shoot outside 90% of the time, so I cannot afford to have a lens without the build to stand up to the elements. If you can afford it, do not cheap out on glass especially.
On a side note. Do not overlook the 17-40 f4 L either. it is an excellent lens for an amazing price with L quality. I know this as I also use this, along with my 24-70 f2.8 L for landscape. With the 7D this would also work well, as that camera is excellent in low light, and how fast of glass do you really need for landscape.

[scorpio_e]

Another for the 16 to 35. If you go full frame you are all set. The 17 to 40 is another good choice.

[AcadieLibre]

I have both lenses and had the 10-22 mm first then I bought the 16 - 35 L f/2.8 and just love it I use it much more than the 10-22 mm when I need the extra wideness but if I had to choose one it would be the 16-35 an the bonus is the faster glass. I like the 10 - 22 and found it to be a good lens but a huge price point between the two lenses.