I'm looking to get my first true 1:1 magnification power macro lens for my D90 and it's a tuff decision for sure. I've put together a list of the most popular true macro lenses for the D90 and I have done a lot of research on all of these but I'm still not sure. I'm leaning towards the Tamron 90mm & the Sigma 105mm which both are highly regarded award winners. Now Tamron has come out with a new 60mm 2.0 macro that also looks great! O'boy just when i had it down between 2 they had to add this little gem.
For me the medium length seems to be what I need. With the 90mm & 105mm length this allows you to stay back further from your subject say for instance a bee on a flower without it flying away. With the shorter lengths like the 50mm and 60mm you might have to get so close the bee would scare away. Also the medium length lenses offer you the ability to use them as a fix focal portrait lens which seems like a good thing to me. Anyway, decisions, decisions I really need to make up my mind, lol
Here's a list for you to check out and read reviews on.
Sigma 50mm f/2.8 EX DG Macro Lens
Sigma 70mm f/2.8 EX DG Macro Lens
Sigma 105mm f/2.8 EX DG Medium Telephoto Macro Lens
New - Sigma 150mm f/2.8 AF APO EX DG OS Macro Lens
New - Tamron AF 60mm f/2.0 SP DI II LD IF 1:1 Macro Lens
Tamron 90mm f/2.8 XR Di 1:1 Macro lens
Nikon 60mm f/2.8G ED AF-S Micro-Nikkor Lens
Nikon 105mm f/2.8G ED-IF AF-S VR Micro-Nikkor Lens
New - Nikon 85mm f/3.5G AF-S DX ED VR Micro Nikkor
Tokina AT-X 100mm f/2.8 PRO D Macro Lens
UPDATE: My Tamron 90mm Review - Click Here
UPDATE: I just got the Tamron 90mm 2.8 and i love it...I'll blog a little report soon.