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Archives of an email list on the history of binoculars. - page 6 / 150





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  A comment on the last contribution from Mike Simonsen:

  I regret that Mike did not attend the meeting in San Diego. If he had, he would be in a better position to comment on my presentation or, at least, be able to spell my name...

  Mike writes: I have ... reached the conclusion that to track down every military used bino ... before WW I is a hopeless task... Later he writes (without refeing to a certain time): After all, the models are usually well known by now.

  I definitely contradict these statements. In our research we have to collect facts and to document these for ourselvs and for our fellow researchers. The attitude to deal with a hopeless task cannot be the basis for further useful and fruitfull work. In 5, 10 or 20 years (or never...) we may have knowledge about "all" models, but we are far from this by now - at least when Swedish models are


  In San Diego I was able to present three earlier unknown models from Goertz, Voigtländer and Busch (all from the 20es). I have found them in Sweden in the last years. The two first mentioned I already showed in my artikel in the new edition of Hans Seegers book, but the Busch 12x60 Porro II was a world premiere.

  The interest in old binoculars is constantly rising and with it a demand for more and better information. Our task is to face this challenge, not to lean back and say it is hopless!     Robert FORSLUND     forslund@___ne.de



Binocular List #252.  10 April 2003.


Subject: Kelsey Hayes

  Kelsey Hayes, of Cleveland Ohio, made the body for a 6 x 30 for the U.S. military circa WWI, a little different that the standard model.  They also made a prismatic rifle telescope for U.S. Marines at that time.  A web search shows they were a large manufacturing concern.  Does anyone know any details about this binocular or the company?  I have never seen one, nor heard of the company until recently.        --Peter


Subject: Hastings Brashear Prism

  The very early roof prism binocular discussed last list is mentioned in:

Elementary Optics and Applications to Fire Control Instruments.  By: War Department (I.C. Gardner).  Second edition. Washington, D.C.: Government Printing Office, 1921 & 1924.

p24, figure 23, Hastings Brashear prism, no displacement of the ray.

p113, first page of the section with prism diagrams, shows the 'Inverting Prism System No. 1 by Abbe' , an 'Abbe-Koenig' with large side pieces.

(Thanks to Frank Doherty for sending me this, a long time ago.  What else you got, Frank??)


Subject: Hastings Brashear Prism

From: "Steve Stayton" <sstayton@___ink.net>

Thanks Peter for the reference to the Hastings and Abbe No. 1 prisms in the 1921 War Office publication. Fascinating that they show both the Hastings and the Abbe form of the erecting prism. I have posted these at:


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