Hey all...sorry if this is overdiscussed, but I can't quite find specific enough answers for myself personally. My next lenses will most likely be a macro and a wide-angle (I have the 50mm prime now and love it, it's a great walk-around, but I am wanting more). I've picked out the macro I want, so that's archived for when I can afford something. But as for the wide-angle....I'm overwhelmed. I've got a 350D (Rebel XT) which of course has that 1.6x crop factor. I want to shoot dramatic wide-angle shots, like those kind where you can see the ground at your feet and the clouds over your head, all in focus....nearly 180 degrees. Here's a good sample. http://www.fredmiranda.com/distortion/samples/16mm_before.jpg This appears to be a rectilinear wide-angle lens (right? doesn't that mean, "no line curvature?") A little distortion doesn't bother me, because it is fixable, but I don't think I want a fisheye. This photo was shot at 16mm on a 1D (which I believe is sans 1.6x crop). So my question. What focal length lens do I need to achieve this on my dSLR with the crop factor? Remember a little distortion doesn't bother me (and is sometimes cool IMO) but I don't want a bulging fisheye distortion....at least I THINK I don't....drrrr... Lenses I've found: Sigma 10-20mm zoom Sigma 14mm Aspherical Tokina 15mm, but that's a diagonal fisheye I think Any help would be much appreciated and tucked away in a safe place till around my birthday Thanks!!