Archived posting to the Leica Users Group, 1998/12/06

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Subject: [Leica] Re: /DOF/ M6 /new stuff
From: Jim Brick <>
Date: Sun, 06 Dec 1998 14:16:51 -0800

At 12:00 PM 12/6/98 -0800, you wrote:
>So, has anyone really checked to see where the subject falls in the DOF with
>their Ms?  It is possible to have the 1/3 and 2/3 DOF with the Ms

The 1/3 front 2/3 back is a function of the lens (optics). It has nothing
to do with the range finder. Other than the RF should align on the same
image plane as when the optics record critical focus on that plane.. You
probably knew this.

My M6 happens to be perfectly aligned. On my 35mm Summicron, if I focus at
6' and use f/5.6, everything from 5' to 8' is sharp. I guess I'm lucky.
With my 1.4 ASPH at f/1.4, the exact spot where I aligned the RF is
critically sharp on the film. Ditto with my 90/2.8 at f/2.8 My M6 was new
in February. I tried a new M6HM first and didn't like it. Got the classic
instead and it has been perfect in every way. Don't forget, the M6TTL is a
new "version" and probably has a different alignment procedure at the
factory. This is one reason I rarely buy new versions of anything. No R8's
here for at least a couple of more years.