Archived posting to the Leica Users Group, 1998/07/06

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Subject: Re: [Leica] M-focus procedure
From: Francesco Sanfilippo <fls@5senses.com>
Date: Mon, 06 Jul 1998 08:51:15 -0700

Now my question is:  where is infinity?  At the farthest point on the barrel
to which you can rack the lens, or in the middle of the infinity sign, or
at the end of the infinity sign?

Francesco


At 09:22 AM 7/6/98 -0400, you wrote:
><< Shot a few rolls this weekend, using my M6
> and several lenses, but mostly a 90mm.
> My in-focus average was NOT good. >>
>
>Don, I do not focus in one particular direction.  -- sometimes from infinity
>in and sometimes the opposite.  Do you know that the camera rangefinder is
>adjusted properly?  One quick test I do is to focus on a far away vertical
>high contrast object (like a radio tower or large pole.  I have found with at
>least one (new M6) that the rangefinder did not line up correctly at
infinity.
>Do you have any focusing problems with other lenses?  If not, the problem
>could be the lens. I had one Leica M lens that would not focus properly
>because the rear cam was not machined properly.  
>
>
>Tom Shea
>