In article <4vf2t3$i5d@cleopatra.telnetwork.it>, ce.pic@mercury.tread.it says...

>I'm looking for buying a macro lens for Nikon, and I'd like to know
>from someone who use it if is a good choice.
>I used in the past a Kiron 105 f/2,8 (1:1) and it was excellent for
>me; I'd like to have a quality at least at the same level...

The two 90mm Sigma macro lenses I tried were very good, as was a
Kiron. BTW, the excellent 52mm achromat that comes with the Sigma
to get it to 1:1 works REALLY well on some Nikkor lenses.....
Hope This Helps