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Archives of an email list on the history of binoculars. - page 33 / 150

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Runge & Kaulfuss, Rathenow.  'RUKA' Manufacturer of optical equipment, 1930s - WWII.  6 x 30, 7 x 50.  WWII code: dym , with a  mark: /__\  like a prism.  

Any further information on this obscure maker would be welcome.     --Peter

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Subject: Photo Adapter for Binos by Jeff Charles

From: "Lucas, Gene" <gene.lucas@___ell.com>

  Here is a link to Jeff Charles' interesting pages on astrophotography and tele-accessories.  You will find a photo and description of a gadget to do photography with binoculars here -- it slips on over the eyepiece.

http://www.eclipsechaser.com/eclink/image/astrogd.htm

"A Pocket Size Telescope Converter for Binoculars"

http://www.eclipsechaser.com/eclink/image/astrogd.htm#bino

[Quoted from the web page]:  "This patented telescope converter attachment for a binocular accepts 24.5 mm diameter eyepieces. With the shown 9 mm eyepiece, it increases the 10x magnification of the binoculars to 40x. The other side of the binocular can be used as the finder scope. The front section of the adapter is interchangeable to accommodate different binoculars. The patent (D312,087, issued in 1990) is available for license.  (c) Copyright 1988, 1998 Jeffrey R. Charles. All Rights Reserved."      --Gene Lucas

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Binocular List #261: 7 July 2003

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Subject: Hensoldt serial numbers

From: hans.t.seeger@___ne.de (Hans Seeger)

A short comment to Hensoldt serial numbers.

  A list similar to that one asked for by Philip Anglin exists in my PC, but only a short one. I have listed nearly 400 Hensoldt serial numbers. A very small sum compared to the more than 7000 Zeiss serial numbers in my files. My Hensoldt list was given to Karsten Porezag the author of a Hensoldt history and to Dr. Besenmatter, formerly constructor of Zeiss Hensoldt binoculars and scientific advisor of this book. Both are now collecting material for the 2nd volume of the  Hensoldt history from about 1905 to 1945. Recently the Zeiss-Hensoldt factory invited again a group of binocular experts for the 2nd meeting in Wetzlar and we delivered our old Hensoldt binoculars, brochures and other material for research purposes there. As previously, the material will be returned to the owners afterwards. My contributions were 27 binoculars and the list in question. The experts promised to be of assistance for this book in the future. Now the author has nearly 100 binoculars and comprehensive material for inscpection. Maybe that a list of serial numbers will be included in the 2nd volume of Porezag's Hensoldt history. Until then my list will be not published elswhere. If you or other readers of this letter provide me with your Hensoldt data I will incude these in my list and forward the numbers to Karsten and ask him to include the numbers in his book and give credit to you.

  Another point: The numbering system used in the Hensoldt factory seems to be very complicated and I have only a vague feeling about their proceeding.  Therefore I didn’t include any suggestions or lists into my book. From my data I can see that there was a more or less “constant” number sequence from about number 300.000 to 900.000. The “lowest” bmj is 422706, the highest 590154. This number circle was continued after WW II, the lowest post war Hensoldt number in my list is 691058. An “intermediate” bino is depicted in my book on page 109, number 600463. For details see Abb. 63, left photograph.

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