[rollei_list] Re: Rolleiflex Mirrors.
----- Original Message ----- From: "Marc James Small" <marcsmall@xxxxxxxxxxx> 
To: <rollei_list@xxxxxxxxxxxxx>; <rollei_list@xxxxxxxxxxxxx>
Sent: Wednesday, March 21, 2007 9:25 PM
Subject: [rollei_list] Re: Rolleiflex Mirrors.


At 12:18 AM 3/22/2007, CarlosMFreaza wrote:
My statement had to do with the comment in the eBay seller's auction page, I explained it, however it's a fact all Rolleiflex cameras from the first Automat have identical luminosity for the viewing lens, f 2.8 , except the Tele and the Wide and the Standard Neu that had a Steinheil-Cassar f 3.1/75mm viewing lens labeled Heidoscop- Anastigmat 3.1/75, BTW this is a very rare sample because Zeiss provided the Heidosmat viewing lens with the Zeiss taking lenses and after the WWII Schneider provided the Hieidosmat viewing lenses with the Schneider lenses. 

Carlos

I believe that you are saying that the
Standart-Neu was unique in having a viewing lens
from an outside source and I believe that this is
correct.  Steinheil was a magnificent firm and it
is unfortunate that a family fight caused them to
go out of business.  Ludwig Bertele was their
director of optical design during most of the 1940's.

Marc



msmall@xxxxxxxxxxxx
Cha robh bàs fir gun ghràs fir!
Kingslake has a short biography of Bertele in his book _A History of the Photographic Lens_. Its so short that I will copy it here. He was a quite remarkable man. 

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Ludwig Jakob Bertele was born in Munich in 1900, the son of an architect. He attended the institute of Technology in Dresden and in 1920 became an optical dseigner with Ermemann in that city. There, with no formal optical training, he designed the first f/2 Earnostar lens in 1922. This lens was fitted to the Earmanox camera, and its use permitted the first photographs to be made under available light. In 1926 Earnemann became part of the Zeiss-Ikon organization and Bertele became a Zeiss designer, working first at Jena and then at the ICA plant in Dresden, where he designed a series of high-aperture Sonnar lenses. He quickly became one of he most outstanding lens designers in the world. In 1942 Bertele left Zeiss and worked for three years with Steinheil in MUnich. Then, at the close of he woar in 1945, he moved to Switzerland and joined the firm of Wild in Heerbrugg. There he designed microscope objectives and a series of outstanding lenses for aerial cameras. He was awarded an honorary doctorate by ETH in Zurich in 1959. Bertele retired to Wildhaus in 1956 but continued his optical work on a consulting basis until his retirement in 1973. He recieved many honors for his outstanding accomplishments; he died on November 16, 1985. 

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Richard Knoppow
Los Angeles, CA, USA
dickburk@xxxxxxxxxxxxx 
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