maxiu9 wrote:
Depending on how wide you want to go for landscapes, you might check out the new Tamron 35-150 f/2.8-4. It's a very nice lens. Beautifully sharp. I wouldn't shoot sports with it, but it's good for street photography and if you don't need really wide angle for landscapes, it'll do fine. I bring this and a 20mm f/1.8 with me on trips and I feel like I have everything covered unless a bike race or soccer game breaks out. That said, the 24-120 is also a really nice lens for everyday use.
You generally want longer, not shorter for landscape, unless you are going for a special effect with perspective. The 35-150 is a nice lens, and if you need wider field of view for a landscape, it is easy enough to shoot it as a stitched panorama - even hand held.