pvdhaar
Peter
An alternative to the 90/2.5 is the Tamron 90/2.8 which goes to 1:1 without accessories. It's easily the sharpest lens I've got.I'll go with Raid on this one- I've had my Tamron 90mm F/2.5 for years, and absolutely love it.
(It only goes to 1:2 with out a tube, but if you pick up the Flat-Field 2x converter they made for it, you get a 180mm that goes from infinity to 1:1.)
Tamron has always seemed to make good macro lenses.
-Brian
There's only one thing I don't understand about Tamron.. why didn't they ever make a 50ish macro?