Archived posting to the Leica Users Group, 2001/03/30

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Subject: Re: [Leica] Konica KM-lens question
From: "Stanislaw B.A. Stawowy" <>
Date: Fri, 30 Mar 2001 18:15:37 +0200
References: <> <01a101c0b806$931c64c0$1d4e48c0@william> <01b501c0b80e$7dd46ba0$1d4e48c0@william> <> <004b01c0b92f$de8f2b20$dcc5af8b@william>

> If the KM-mount lens focus well on a M6, why many users report that Hexar-RF
> can not focus well with Leica lens? Is this a QC issue? Adjusting the
> Hexar-RF body will cure this problem?

Just to cite Stephen Gandy:

Viewing area is 85% at 3 meters, and becomes less as the lens is focused to infinity which increases the lens' angle of view (yeah,
weird I know, but optics are like that).    The Hexar has the SAME rangefinder baselength: 69.2 mm as the Leica M.   Curiously, the
Hexar's image magnification is lower at .6 (same as the Leica CL) instead of Leica's .72 or .85, resulting in an effective
rangefinder baselength of 69.2 x .6 = 41.5 which is 83% as accurate (all other factors being equal) as the .72  M6.     In practical
terms this means the Hexar will be easier to use with the 28 and 35 for eye glasses wearers, but won't give the focusing accuracy
needed for the 50/1.4 or faster, 75/1.4, 90/2, or 135/4 wide-open at the closest focusing distance.

With all that said, I don't see a reason why Hexar shouldn't be used with some
Leica lenses. Rangefinder is so easy to adjust thing...

yours truly curious
- -----
                     (Stanislaw B.A. Stawowy)
            Echelon/Carnivore lines: Bob Black, Hakim Bey,
           Ralph Klein, Sabotage in the American Workplace

Replies: Reply from "Dante A. Stella" <> (Re: [Leica] Konica KM-lens question)
In reply to: Message from (RE: [Leica] O series)
Message from "KIMO williamhu99" <> ([Leica] test)
Message from "KIMO williamhu99" <> ([Leica] Konica KM-lens question)
Message from "Dante A. Stella" <> (Re: [Leica] Konica KM-lens question)
Message from "KIMO williamhu99" <> (Re: [Leica] Konica KM-lens question)