Well, I'm shooting with a 5DmkII, but the lowest I can go with my current most wide-angle lens is 24mm.
My budget isn't huge, I can stretch to 2 000 dollars but would like to keep it as low as possible, considering I've got a lot of other necessities I need to spend money on.
I'm thinking something along the lines of the Sigma 12-24mm F4.5-5.6. It's performance is okay and it seems like decent choice, but if any of you guys have any other suggestions I'm open to them.
It has to be a full frame lens, and I don't want any fisheye stuff, so I'd prefer an asperical lens. I was thinking of the 17-40mm F/4L but I like to go even wider then that for some spectacular landscape photography.
I prefer prime by a tad. I'll take zoom if I have to.