Archived posting to the Leica Users Group, 1999/03/29

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Subject: [Leica] Reason for ROM
From: Robert Rose <rjr@usip.com>
Date: Mon, 29 Mar 1999 09:27:17 -0800
 
I am still trying to understand what the ROM does.  Sorry, but all the explanations 
seems like gobbledygook.

So far I have found only one difference.  A non-ROM lens does not transmit its focal
length to the Metz flash.  The flash zoom has to be set manually.  The lens aperture is 
transmitted to the camera and flash, however, with a non-ROM lens.  A ROM zoom is 
very nice with flash, since it will control the zoom head automatically.

Bob Rose