I ended up selling my Tamron 90mm because it was just soft
everywhere.. I had a bad copy, and I tried 4 other copies, same
thing. Both lenses are wicked sharp when you get a good copy.
thanks for sharing. I though I would be the only one who had bad
luck with the Tamron 90Di. As yours my copy was soft everywere, far
distance and close up. In intermediate close up distance
(50cm-100cm) I compared it with a 1.8/50mm and my 17-55DX. The
Tamron came out last, and I shipped it back.
I guess, Tamron has some sample variation problems lately. To bad
for such an alleged superb lens.
Frithjof