Archived posting to the Leica Users Group, 2001/01/11

[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]

Subject: [Leica] Re: Re: 50 Summicron-R
From: Jim Brick <jim_brick@agilent.com>
Date: Thu, 11 Jan 2001 16:38:55 -0800

At 03:45 PM 1/11/01 -0800, Doug Herr wrote:
>On Thu, 11 January 2001, Jim Brick wrote:
>
>> 
>> From the rear of the lens, two fixed (they don't move) metal ramp (sloped)
>> cams, one on each side of the rear element (very prominent, can't miss
>> them), the third cam is a square metal block (between the two ramp cams)
>> that when you move it, it opens up the diaphragm.
>> 
>> Two ramps and a movable square block.
>> 
>> Jim
>
>Jim, I think what you're describing as the 3rd cam is what Randy calls the 
>aperture control lever.  As I understand it, Randy wants to know how to 
>determine if the 3rd metering cam is present.
>
>Doug Herr

Yes, of course. Sorry...

Jim