[rollei_list] Re: Contax
- From: Marc James Small <marcsmall@xxxxxxxxxxx>
- To: rollei_list@xxxxxxxxxxxxx
- Date: Tue, 10 Apr 2012 15:39:48 -0400
At 12:10 PM 4/10/2012, Richard Knoppow wrote:
>Hard coatings
>were developed in the US during WW-2 research. These
>coatings are vacuum deposited but are baked in vacuo in the
>coating chamber. This type of coating began to be used on
>critical military equipment during the war but was not used
>for commercial products until around 1946.
Carl Zeiss Jena began to market hard-coated
lenses commercially in the very late 1930's. I
recognize the urgency of the Kodak guys to claim
the credit, but Zeiss developed it first and got it to the marketplace first.
Marc
msmall@xxxxxxxxxxxx
Cha robh bàs fir gun ghràs fir!
---
Rollei List
- Post to rollei_list@xxxxxxxxxxxxx
- Subscribe at rollei_list-request@xxxxxxxxxxxxx with 'subscribe'
in the subject field OR by logging into www.freelists.org
- Unsubscribe at rollei_list-request@xxxxxxxxxxxxx with
'unsubscribe' in the subject field OR by logging into www.freelists.org
- Online, searchable archives are available at
//www.freelists.org/archives/rollei_list
Other related posts:
