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[Rollei] Lens elements and Greek naming conventions
- Subject: [Rollei] Lens elements and Greek naming conventions
- From: "Kotsinadelis, Peter (Peter)" <peterk >
- Date: Mon, 4 Feb 2002 07:28:21 -0800
- References:
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Its all Greek to me....
Trio = 3 in Greek (as in 3-elements, hence Triotar)
Tessara = 4 in Greek (as in 4-element, Tessar lens)
Pente = 5 in Greek (I think there was a Pentar but I will leave this to the
lens experts).
> -----Original Message-----
> From: John A. Lind [mailto:jlind ]
> Sent: Sunday, February 03, 2002 2:54 PM
> To: rollei us
> Subject: Re: [Rollei] Rollei 35
>
>
> At 03:09 2/4/02, Marc James Small wrote:
> >Thanks, John. "Tessar", however, comes from the Greek
> "tessaros", for
> >'four', as in four elements in three groups. And the basic
> Zeiss patent
> >dates from 1902, and expired in 1922. The Zeiss trademark,
> of course, goes
> >on.
> >
> >Marc
>
> True, but "Tessar" is its formal "given name" by Carl Zeiss,
> similar to the
> "Triotar" name applied to their Cooke triplet design. The
> name I referred
> to is the "Adlerauge" [sp ??] nickname it was given after
> users discovered
> what a truly fine lens it is.
>
> -- John
>
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<P><FONT SIZE=2>Its all Greek to me....</FONT>
</P>
<P><FONT SIZE=2>Trio = 3 in Greek (as in 3-elements, hence Triotar)</FONT>
<BR><FONT SIZE=2>Tessara = 4 in Greek (as in 4-element, Tessar lens)</FONT>
<BR><FONT SIZE=2>Pente = 5 in Greek (I think there was a Pentar but I will leave this to the lens experts).</FONT>
</P>
<BR>
<BR>
<BR>
<P><FONT SIZE=2>> -----Original Message-----</FONT>
<BR><FONT SIZE=2>> From: John A. Lind [<A HREF="mailto:jlind </A>]</FONT>
<BR><FONT SIZE=2>> Sent: Sunday, February 03, 2002 2:54 PM</FONT>
<BR><FONT SIZE=2>> To: rollei /FONT>
<BR><FONT SIZE=2>> Subject: Re: [Rollei] Rollei 35</FONT>
<BR><FONT SIZE=2>> </FONT>
<BR><FONT SIZE=2>> </FONT>
<BR><FONT SIZE=2>> At 03:09 2/4/02, Marc James Small wrote:</FONT>
<BR><FONT SIZE=2>> >Thanks, John. "Tessar", however, comes from the Greek </FONT>
<BR><FONT SIZE=2>> "tessaros", for</FONT>
<BR><FONT SIZE=2>> >'four', as in four elements in three groups. And the basic </FONT>
<BR><FONT SIZE=2>> Zeiss patent</FONT>
<BR><FONT SIZE=2>> >dates from 1902, and expired in 1922. The Zeiss trademark, </FONT>
<BR><FONT SIZE=2>> of course, goes</FONT>
<BR><FONT SIZE=2>> >on.</FONT>
<BR><FONT SIZE=2>> ></FONT>
<BR><FONT SIZE=2>> >Marc</FONT>
<BR><FONT SIZE=2>> </FONT>
<BR><FONT SIZE=2>> True, but "Tessar" is its formal "given name" by Carl Zeiss, </FONT>
<BR><FONT SIZE=2>> similar to the </FONT>
<BR><FONT SIZE=2>> "Triotar" name applied to their Cooke triplet design. The </FONT>
<BR><FONT SIZE=2>> name I referred </FONT>
<BR><FONT SIZE=2>> to is the "Adlerauge" [sp ??] nickname it was given after </FONT>
<BR><FONT SIZE=2>> users discovered </FONT>
<BR><FONT SIZE=2>> what a truly fine lens it is.</FONT>
<BR><FONT SIZE=2>> </FONT>
<BR><FONT SIZE=2>> -- John</FONT>
<BR><FONT SIZE=2>> </FONT>
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