Archived posting to the Leica Users Group, 1999/04/17
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On Sat, Apr 17, 1999 at 09:17:53AM -0500, Eric Welch wrote:
> At 08:37 AM 4/17/99 -0400, you wrote:
> >One reads that methyl alcohol is the cleaning fluid of choice for
> >Leica lenses: glass and lens body. What is a likely source for this
> >"wood" alcohol? What are the caveats for its use?
>
> I don't think so.
Other authors contributed in a similarly whimsical manner,
appearing to regard my questions as being baseless.
Allow me to be more precise this time. According to the
"Instructions" booklet included with a new 50mm Summicron-M, p. 10:
TIPS FOR LENS CARE
Remove dust from the outer surfaces of the lens with a soft
brush or gently use a clean, dry, soft cloth, such as a
cotton handkerchief.
Stains and fingerprints should be removed with a very small
amount of methyl alcohol.
The instruction continues with caveats about using clean cloth and
avoidance of dry wiping.
Quoting Guenther Osterloh in "Leica M The Advanced School of
Photography," p. 93:
TIPS FOR CARE OF LEICA M LENSES
. . . Spots should be removed by using a solution that can
easily be produced by mixing two parts alcohol (pure or
denatured) and one part distilled water.
This instruction also continues with caveats about clean cloth,
etc.
My questions remain unaddressed.
- --
rwyble@erols.com Worcester, Massachusetts
Richard J. Wyble