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Archives of an email list on the history of binoculars. - page 101 / 150

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Subject: Symbols on Japanese binoculars

From: gordiray@___t

I have and had some 15 x 105/60 deg inclined wtih the chrysanthemum  symbol, and was told that that was Toyokawa Navy Arsenal, which after the war became Kowa, or part of Kowa, now Kowa Optimed in Torrance.  There are dozens of Kowa 20 x 120 at Tokyo Tower, near the sword museum, same as the Israeli offerings in the DO catalog.  Another 15 x 105/ 60 deg inclined  I owned but traded was labled with a Star of David.  That was the symbol of Enomoto Kogaku, which became part of Fuji Photo Optical-Fuji Meibo-Fujinon.

--Gordon Rayner

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Subject: Reproduction head cushions

From: gordiray@___t

(from List 273:   >superior copies of the 25 x 100  cushion  for which I made a mold )

  Yes, I still have the mold I made 30 years ago, and many sets of the aluminum supports I made to fit the 25 x 100 cushion copies to the Busch 10 x 80 with 45 deg. inclination.  I may have one or two extra cushions, but it is time for a new production run:  buy the  liquid polymers, set up, and run off  50pieces or thereabout.  If others are interested, that would increase my motivation.   Environmental and industrial safety requirements have changed the availablity of some of the materials I formerly used, I believe.

Gordon Rayner   619-297-0797     California  time

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Subject: various news from the internet

Holger Merlitz review.....three military glasses with specification 8x30. These are the Zeiss Dienstglas, the Hensoldt DF and the Steiner Fero-D 12.

http://de.geocities.com/holger_merlitz/zeiss8x30.html

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A very nice looking, unfinished 12 inch binocular Newtonian telescope from England:

http://www.astronomycentre.org.uk/Projects/Binoculars/binocs01/Page.htm    

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Leica Ultravid BR 7x42 ($1200 discounted), BL 8x42, 10x42 leather covered lightweight 25oz.; BR 8x50, 10x50, 12x50

http://www.ultravid.co.uk/

Russian Leica site:  http://www.leica-russia.ru/binoculars.htm

7x42, 8 degree field

8x42, 7.4 degree field

8x50, 6.6 degree field

magnesium body.

improved optical and mechanical configuration markedly reduces stray light.

Leica's High Lux Sytem (HLS) - a special mirror coating enhancing the prism system that is applied utilizing an advanced Physical Vapor Deposition process generated by an Ion Beam and particle accelerator. Forty-three separate coatings are applied in a thickness as little as 40 nanometers. These so called lamba/2 coatings, which transfer 99.5% of the light over the mirrors, not only generate additional brightness, but also allow for optimization for only one wavelength of light.

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