On 21 Aug 1998 22:20:38 GMT, rschiller@worldnet.att.net (Rick Schiller) wrote:

>Author has some good points. However, optically speaking the 60/2.8
>AF is a superior lens to the 55/2.8 AIS. I've used both and kept the
>60. And the 60 AF goes to 1:1 without an extension ring, whereas the
>55/2.8 AIS needs a PK-13.

Depends on the focusing distance... Near infinity wider than about
f11, the 55 is much better in the corners (and is even good wide open).
At mid distances, it's a toss up. At macro distances, the 60
wins. The poor infinity performance at mid-wide stops makes the
60 unsuitable as a general-use lens for me, though it is a really
outstanding macro lens.