回复：Nikon or Tamron Zoom Len

i would take nikon glass.

- you can try 70-210 f/4-f5.6D o even the non-D version.

-try 80-200 f/2.8, it is not new, but still a fast len.

-if you do not have budget problem, go 70-200 f2.8 VR, that rocks!

good luck!