terrific data but I don't think it addresses the 1.4 "SC", "MC" (not all
elements), "MC" (possibly all elements), "No Designation" variations.
Bruce Kolber
St. Petersburg, FL 33715
USA
----- Original Message -----
From: "John A. Lind" <jlind@xxxxxxxxxxx>
To: <olympus@xxxxxxxxxxxxxxx>
Sent: Tuesday, May 15, 2001 3:10 PM
Subject: Re: [OM] 50f/1.4 breakpoint
> Additionally, you can see the evolution here on Lee Hawkins site:
> http://brashear.phys.appstate.edu/lhawkins/photo/multicoat.txt
>
> I cannot claim it's without error, but it's one of the more comprehensive
> sources about when which lens that started SC became an MC. Lee has a
> number of very good cross-references and FAQ's about the OM system (go to
> his photography section):
> http://brashear.phys.appstate.edu/lhawkins/
>
> -- John
>
> At 23:00 5/15/01, you wrote:
> >Is that "all" as in all focal lengths?
> >Bruce Kolber
> >St. Petersburg, FL 33715
> >USA
> >----- Original Message -----
> >From: "John A. Lind" <jlind@xxxxxxxxxxx>
> >To: <olympus@xxxxxxxxxxxxxxx>
> >Sent: Tuesday, May 15, 2001 2:03 PM
> >Subject: Re: [OM] 50f/1.4 breakpoint
> >
> >
> > > At 21:43 5/15/01, Bruce Kolber wrote:
> > > >I would think so and adds to the likelihood that the MC label (or
lack of
> > > >it) on the bezel is not related to the breakpoint...I think we will
> > > >eventually find that there are both early and late varities of the
> >coatings
> > > >within the same range of serials......in other words, there probably
was
> >no
> > > >breakpoint.....just a fairly large duration of breakin depending on
the
> >line
> > > >or lines of manufacture.
> > > >Bruce Kolber
> > > >St. Petersburg, FL 33715
> > > >USA
> > >
> > > As I understand it, the dropping of the "MC" marking is related to
when
> > > _all_ of the single coated lenses were dropped from production. If
all
> >the
> > > lenses are multi-coated, it obviates the need for an "MC" marking.
> > >
> > > -- John
> > >
> > >
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> > >
> >
> >
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