Archived posting to the Leica Users Group, 2003/03/19

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Subject: Re: [Leica] 35 Summilux from KEH, should I complain?
From: Jerry Lehrer <jerryleh@pacbell.net>
Date: Wed, 19 Mar 2003 15:28:52 -0800
References: <20030319230547.61542.qmail@web10508.mail.yahoo.com>

Pat

If a tech with the reputation of VanStelton caused
a problem such as that, I shudder to think of what
lesser repair persons could do.

I have heard of oil on blade problems arising on
SLRs but not on RF lenses.

I trust that Focal Point made it right.

Jerry

Patrick Jelliffe wrote:

> Richard,  I think your question was valid as was
> posting the ? on this forum, especially considering
> the outlay for the lens and its age.  It sounds as if
> you've decided to go ahead and use it, and that seems
> the best course to me from everything you and others
> have said.
>
> I did have a Canon 50 f/1.2 screw mount lens serviced
> by Focal Point.  Apparently, VanStelten used a GREASE
> with a high viscosity.  It migrated over a period of 9
> months, and a total of TWO rolls of film using that
> lens, no extreme temperatures either in use or
> storage.  Because it wasn't oil, the grease caused the
> blades to bind and rendered the lens unuseable. Even
> under examination, because of the use of grease and
> not oil, there was no shiny telltale sign. Your case
> is totally different, but mine is an example of
> improper repair technique, and probably improper
> volume of lubricant.
>
> Have a grand vacation out West.
>
> Regards,
>
> Patrick
>
> --- John Collier <jbcollier@shaw.ca> wrote:
> > The oil is going to be no more or no less mobile on
> > the blades than it
> > was where ever it originally came from. Remember we
> > are talking about 6
> > "teeny spots of oil". If the blades were wet with
> > with oil that would
> > be a different matter and probably because of
> > incompetent servicing.
> >
> > As to reflections, again 6 "teeny spots of oil"!? Am
> > I going to throw
> > away all my old lenses with shiny aperture blades?
> > Do you? My old
> > Hektor is a great performer stopped down and that is
> > with very polished
> > aperture blades? If only it was as good wide open
> > when those
> > "obviously" faulty blades were out of the way!
> >
> > John Collier (Who has never looked inside a lens
> > unless the negatives
> > were problematic. If the negs look good, then who in
> > h*** cares what is
> > in the lens!)
> >
> > --
> > To unsubscribe, see
> http://mejac.palo-alto.ca.us/leica-users/unsub.html
>
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In reply to: Message from Patrick Jelliffe <pbjbike@yahoo.com> (Re: [Leica] 35 Summilux from KEH, should I complain?)