On Wed, 12 Feb 2003, Mike Johnston wrote: > But where have you heard about Pentax introducing USM or IS lenses? From
I was under the impression that IS patents were put out by Pentax many years ago, and further more that the current IS and VR lenses were based on these patents? I won't fight if I'm told its untrue, either. As for USM? Perhaps I'm missing the point of just what makes USM special..I was under the impression that the biggest difference was that there was a motor in each lens to focus, and not a motor in the body with a screw... While there may be a patent for the Canon way of doing this, I can't imagine it would be that difficult to come up with the same concept in another manner and avoid the patent law? -- http://www.infotainment.org <-> more fun than a poke in your eye. http://www.eighteenpercent.com <-> photography and portfolio.
