Archived posting to the Leica Users Group, 1997/10/14

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Subject: Re: About the SM-to-M Adaptors
From: Leikon35@aol.com
Date: Tue, 14 Oct 1997 03:23:42 -0400 (EDT)

 Leslie -

 The adapter for the 90mm will bring up the 28 & 90 frames
  "      "         "      35/135  will bring up the 35 & 135 frames
  "      "         "        50mm will bring up the 50 &   75 frames
Marvin
********************************************************************
<< 
 If I use a Canon 28mm screwmount (SM) lens with
 a 28-50 SM-to-M adaptor ring on the M6 body, will the
 28/90-frame show in the viewfinder?
 And, how about a 100mm Serenar (Canon) lens?  Should I use
 the 90 SM-to-M adaptor or the 135 adaptor?
 Why are there different SM-to-M adaptors for different focal
 lengths--because they'll each actuate the corresponding
 frame in the viewfinder?  If so, I can't see why a 28-50
 adaptor can tell which focal length lens is being attached,
 and why this 28-50 can't be used for 75mm, 90mm, and 135mm
 lenses too.
 
 Have a nice day.
 /Leslie