--- Keith Whaley <[EMAIL PROTECTED]> wrote: > The autofocus actuator requires an Ultra Small Motor > to drive it! > > keith whaley > > "Gregory L. Hansen" wrote: > > > > [EMAIL PROTECTED] said: > > > > > Certainly not. According to Pentax KAF3 patents, > both IS and USM will > > > work without sacrificing compatibility. > > > > IS=Image Stabilization, but what is USM?
The correct name for the USM feature in Canon EF lenses is: UltraSonic Motor. ____________________________________________ ===== Matt Greene I get it done with YAHOO! DSL!
