Archived posting to the Leica Users Group, 1998/02/03

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Subject: Re: [Leica] Above AF
From: TEAShea@aol.com
Date: Tue, 3 Feb 1998 10:58:21 EST
 
<< In any case, moving the film plane in a reflex requires complex
electronics.
 Not only that, but in a manual mode, a series of gears and levers would be
 necessary, further adding to the bulk,  intricacy of the mechanism and the
 weight. >>

The Contax AX uses a system where the film plate and mirror assembly rides
back and forth on a ceramic guide rail, powered by an ultrasonic motor.  

Tom Shea