Archived posting to the Leica Users Group, 1999/08/14

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Subject: Re: [Leica] m2
From: Jeffcoat Photography <jeffcoatphoto@sumter.net>
Date: Sat, 14 Aug 1999 18:34:12 -0400

Can someone tell me why they can't make eyeglass lens out of sapphire. I have a
Cyma watch with a sapphire crystal and in two years of hard wear NO scratches.
But I too will kill my eyeglasses in 3-6 mnts.
Cheers Wilber

Tim Atherton wrote:

> Oh yeah as well!!
>
> How come my expensive Nikon (okay, I Know - they should be Leitz) plastic,
> coated, anti-reflective , supposedly scratch resistant lenses are ALWAYS
> scratched after 6 months or so? They are lovely when new, but....
>
> And these have the best record of any so called scratch resistant lenses I
> have used over the past 10 years or so.
>
> No, I wouldn't go back to glass, but plastic sure does scratch.
>
> Tim A
>
> > -----Original Message-----
> > From: owner-leica-users@mejac.palo-alto.ca.us
> > [mailto:owner-leica-users@mejac.palo-alto.ca.us]On Behalf Of Steve
> > LeHuray
> > Sent: August 14, 1999 3:20 PM
> > To: leica-users@mejac.palo-alto.ca.us
> > Subject: Re: [Leica] m2
> >
> >
> > To Marc and Mark,
> > Some things die hard don't they? There is nothing wrong with plastic
> > eyeglass lenses. Why would anybody want to walk around with twice the wait
> > sitting on their nose. I know that both of you won't beleive it
> > but they DO
> > NOT scratch. Oh, maybe if you take a scew driver and drag it
> > across the lens
> > but the gentle rubbing against a brass viewfinder will leave nary a mark
> > (oops) scratch.
> > Steve
> > Annapolis
> > ----------
> > >From: Mark Rabiner <mrabiner@concentric.net>
> > >To: leica-users@mejac.palo-alto.ca.us
> > >Subject: Re: [Leica] m2
> > >Date: Sat, Aug 14, 1999, 4:34 PM
> > >
> >
> > >Marc James Small wrote:
> > >>
> > >> At 08:51 AM 8/14/1999 -0500, Alan Brown wrote:
> > >> >Or is there another option to
> > >> >keeping my glasses from getting scratched?
> > >> >
> > >>
> > >> Glass lenses.  Avoid plastic lenses at all costs -- even the new
> > >> "Scratch-Proof" plastics cannot compete with glass.
> > >>
> > >> Besides, most glass lenses are made by Corning or Zeiss, I believe.
> > >> Rodenstock is a big player in plastic lenses, but I am not
> > certain who else
> > >> makes them.
> > >>
> > >> Marc
> > >>
> > >> msmall@roanoke.infi.net  FAX:  +540/343-7315
> > >> Cha robh bas fir gun ghras fir!
> > >
> > >We had a fellow on the list by the name of Zeissler (Mitch?) who
> > told me he had
> > >Zeiss glass put in his frames.
> > >Impressed the  heck out of me but as I thought they were more
> > hard to get.
> > >When I go to the glasses store I say "No I'm a photographer"
> > when they try to
> > >sell me on plastic.
> > >I explain to them that us photographers are very aware of the differences
> > >between plastic and glass and would not dream of looking through
> > plastic all
> > >day. That never works.
> > >So I tell them I am very hard on my lenses. That doesn't work
> > either. So I tell
> > >them to just give me the damn glass anyway I don't care if you
> > have to go to
> > >some weird lab you have less of a great deal going with.
> > >Mark Rabiner
> > >
> >