I don't have much $$, in fact one of my lenses need to go to be able to get something. I have two that overlap to much anyway. A 24-70 2.8f sigma and a 28-105 Nikon. Hows the 17-??'s do on the short end for landscapes? Also considering the 16-85mm as a replacement for both the lenses if the wide end would do well for landscapes. Anyone try this lens for this? I'm sure the longer end will be fine for most of my shooting.