[rollei_list] Re: 'Old' Zeiss glass question
- From: Jerry Lehrer <jerryleh@xxxxxxxxxxx>
- To: rollei_list@xxxxxxxxxxxxx
- Date: Wed, 26 Apr 2006 17:30:56 -0700
Jeffery,
I do not recall any salesperson at Nelson Photo in the '70's named Jerry.
BTW, Nelson has taken over Bob Davis Camera in La Jolla, after their
bankruptcy.
Jerry Lehrer
La Jolla, CA
Jeffery Smith wrote:
> I recall all of the hoopala surrounding Pentax's SMCT lenses (Super Multi
> Coated Takumar) around 1970, the time that I bought my Pentax Spotmatic from
> none other than Nelson Photo on India Street in San Diego (I wonder if Jerry
> sold it to me). Around that time I a;sp bought some multicoated eyeglasses.
> They called that "Arrest-a-Glare". I like Pentax's name better. ;-)
>
> Jeffery Smith
> New Orleans, LA
> http://www.400tx.com
>
> -----Original Message-----
> From: rollei_list-bounce@xxxxxxxxxxxxx
> [mailto:rollei_list-bounce@xxxxxxxxxxxxx] On Behalf Of Carlos Manuel Freaza
> Sent: Wednesday, April 26, 2006 5:08 PM
> To: rollei_list@xxxxxxxxxxxxx
> Subject: [rollei_list] Re: 'Old' Zeiss glass question
>
> Yes, whilst Zeiss worked with Rollei about the
> multicoating process in Germany, they (Zeis)worked
> with Asahi in Japan, this development was the basis
> for the Pentax SMC multicoating process.
>
> All the best
> Carlos
> --- Marc James Small <msmall@xxxxxxxxxxxx> escribió:
>
> > At 04:17 PM 4/26/06 -0500, Jeffery Smith wrote:
> > >No aspherical surfaces. I'm not sure when they
> > started multicoating,
> > >but I don't think that early. Zeiss used the
> > designation of *T for
> > >their multicoating. When they began doing it, I
> > don't know. I think
> > >that modern CNC machining and computer designing
> > gives lenses from
> > >the last 20 years a decided advantage over the 50's
> > designs. But they
> > >sure were good given the tools of that era.
> >
> > Multi-coating was developed by a joint effort
> > between Asahi and Zeiss in
> > the late 1960's: at that time, the Zeiss Foundation
> > was preparing to kill
> > of Zeiss Ikon but wanted to stay in the photography
> > racket, so they were
> > seeking a Japanese partner precisely as Leitz was
> > negotiating with Minolta.
> > The Pentax deal fell through, as Zeiss wanted to
> > establish a Japanese lens
> > facility and Pentax only wanted German-made lenses
> > for prestige marketing,
> > but they went home with the K lens mount and with
> > the perfected
> > multi-coating technology. Zeiss began marketing
> > scientific and sports
> > optics with their signature "T*" multi-coating
> > around 1971, and Pentax
> > introduced their SMC photographic lines six months
> > or so later. Zeiss
> > later introduced Phase Coatings on sports optics,
> > and indicates this with a
> > "P*". I know that Nikon and Pentax both license
> > this process but I am
> > uncertain how their binoculars are marked.
> >
> > Pentax made its photographic footprint with the M42
> > mount, developed at
> > Carl Zeiss Jena, in 1939, and with the K mount
> > developed by Carl Zeiss at
> > Oberkochen in the late 1960's.
> >
> > Modern manufacturing methods have decisively changed
> > both the quality and
> > cost of lens production. The days when the most
> > highly paid worker at Jena
> > were the tool-and-die guys are long gone. Now, a
> > much smaller workforce
> > can crank out lenses at a pace impossible even in
> > 1965.
> >
> > Marc
> >
> > msmall@xxxxxxxxxxxx
> > Cha robh bàs fir gun ghràs fir!
> >
> >
> > ---
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> >
> >
>
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