Archived posting to the Leica Users Group, 2001/02/05

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Subject: [Leica] Re: How to impress your friends and adjust your rangefinder.
From: Jim Brick <jim_brick@agilent.com>
Date: Mon, 05 Feb 2001 15:31:36 -0800

This does NOT adjust the vertical alignment, which is what is knocked out
of alignment when you bang the camera into something. The vertical
alignment is behind the red/black dot on an M6, under a screw hole in the
same position on all of the other M cameras. It requires a special tool on
M4 & M6 cameras, all others can be done with a tiny screwdriver.

Jim


At 03:48 PM 2/5/01 -0500, Lee, Jonathan wrote:
>Take lens off Leica.  You will see 2 circular cams, one of which has a
>flathead screw in it. This is the adjustment cam for the horizontal
>rangefinder image. Go to Home Depot, buy a small flathead screwdriver that
>is S shaped and will fit inside the bayonet flange and reach the cam. The
>screwdriver will likely be too thick to fit into the screwhead. File or
>grind it down.  Use screwdriver to turn the adjustment cam 1/16 of a turn to
>begin with.  Put lens back on and check infinity focus on object 100 or so
>feet away.  Repeat adjustment as necessary.  If your rangefinder is really
>off, there will not be enough adjustment room in the cam.
>
>Jonathan Lee