I have both the Nikkor 17-55mm F2.8 AFS DX and the Nikkor 12-24mm F4 AFS DX lenses. Both are fantastic for landscapes. I think I could probably live just my 17-55mm and my 70-200mm AFS VR lens, but the 12-24mm is a very good quality optic. You can't go wrong either way with these top Nikkors. My web site www.digitallight.co.nz has galleries shot with these lenses. The England and Paris galleries are exclusively shot wuth the 17-55 and 12-24. Probably about 90% 17-55 and 10 % 12-24mm split.