----- Original Message ----- From: "Godfrey DiGiorgi"
Subject: Re: About Sigma: beware ??
If Canon's changes were so unpredictable and so difficult to keep in compliance with, how come the same Canon lens produced in 1985 works flawlessly on the latest Canon EOS body, despite 20 years of unpredictable body changes and no change to the lens at all?
In my own convoluted way, this is the point I have been trying to get across.
William Robb
