<a href=showthread.php?s=&postid=15128563#post15128563 target=_blank>Originally posted</a> by bmwardo
Sorry to bust your bubble, but neither, they are not Macro lenses. You will find that their minimum focusing distance far exceeds that required to get sharp macro results. If you have already tried taking closeups with either lens you will see that the images are very soft.
With a D90 you should be able to pickup old Nikon manual focus macro lenses at a decent price or check out:
Sigma AF 105mm f/2.8 EX macro DG
Sigma AF 150mm f/2.8 APO EX HSM macro DG D
Tamron AF 90mm f/2.8 Di SP macro
Tamron AF 180mm f/3.5 SP Di LD [IF] macro
Tokina AF 100mm f/2.8 AT-X Pro D macro
Micro-Nikkor AF-S 105mm f/2.8G IF-ED VR