I have a D70s and have been shooting with a 24-120 3.5-5.6 Nikkor VR for about a year. For most of the stuff I do (see signature) it is a perfect lens but I now need something wider as I'd like to get into landscape and city overview shots. Today I have visited a shop and played with these: - Sigma 17-70mm F2.8-4.5 MACRO (EUR 299,-) - Tamron SP AF17-50mm F/2.8 XR Di-II (EUR 399,-) I like them both but can't really make a decision. Maybe someone with some more knowledge about these two can give me some advice to make the decision easier. Alternative lenses are also welcome, as long as they stay within this price range.