[Leica] Lens Choices

[Mark Rabiner]

Or it was Katharine Burr Blodgett  in 1935 working for GE

http://en.wikipedia.org/wiki/Katharine_Burr_Blodgett


" Using this technique, Blodgett developed practical uses for Langmuir¹s
gossamer films. Blodgett used a barium stearate film to cover glass with 44
monomolecular layers, making the glass more than 99% transmissive and
creating "invisible" glass. The visible light reflected by the layers of
film canceled the reflections created by the glass.[5] This type of
nonreflective coating is now called Langmuir-Blodgett film and is widely
used.[11] The first major cinematic production to use Blodgett's invisible
glass was the popular film Gone with the Wind (1939), noted for its
crystal-clear cinematography. Once introduced, nonreflective lenses were
used for projectors and cameras by the post-war movie industry. Blodgett's
glass was also used for submarine periscopes and airplane spy cameras during
World War II.[5]"


On 4/24/15 10:39 PM, "Doug Herr" <wildlightphoto at earthlink.net> wrote:

> Mark Rabiner wrote:
> 
>> The Pentax Super-Multi-Coated Takumar 50/1.4 was the first lens anybody
>> could get their hands on which had this advanced coating which everyone was
>> very hyped on and was developed by Pentax in conjunction with Zeiss
> 
> IIRC the coating process was developed by Optical Coating Laboratories Inc, of
> Santa Rosa California.  Pentax bought the patents from OCLI.
> 
> 
> Doug Herr
> Birdman of Sacramento
> http://www.wildlightphoto.com
> http://doug-herr.fineartamerica.com
> 
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-- 
Mark William Rabiner
Photographer
http://gallery.leica-users.org/v/lugalrabs/