>
> IIRC the first linear drive lenses were in the Rolleiflex SLX 6x6
> system, but don't know if USM was used. The technology ~was~
> available at the time.
>
Of couse that was pre-autofocus, and only the diaphram was being
adjusted by the linear motor.
regards, Anthony
"Of what use is lens and light
to those who lack in mind and sight"
(Anon)
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