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Archives of an email list on the history of binoculars. - page 113 / 150





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  They are out of collimation (but, as an stereoscopist, I can fuse the images, which then shows the field stops to be not superimposed).

  They are Center Focussing.

  The eyepiece outer cells, the prism covers, and the bridge mechanism are all made from lightweight PLASTIC. There is an enormous amount of flexure in the bridge, which means it will be impossible to keep both eyes constantly in focus. The main barrel appears to be cast aluminum, but it appears (I'm not certain) that the objective barrels are made from plastic.

  The worst problem, easily visible in daylight by looking at distant buildings and mountains, is that there is a sharp zonal irregularity in the image as one scans over the field of view.

  This suggests they probably used one or more molded plastic lens elements, or that the glass elements are made with unprecedented sloppiness.

  Night time testing shows that the optics are very poor, in every respect, at night.

  It is apparent that these binoculars are to be avoided, despite their $199 price tag.

        Regards, Dick Buchroeder.


Subject: Irrelevant note for the bored

From: Peter Abrahams

The informal group that has held meetings in Los Angeles, Vancouver Wash., San Diego, and now Tucson & Koblenz, has become known as the 'Binocular Historical Society', or BHS for those who dislike typing.  Those who dislike typing so much they can't even be motivated to use the shift key spell it bhs, which inspired the thought in me, that we could take an old German 6x30 & engrave a three letter code 'bhs' as a Fertigungskennzeichen of sorts (it wouldn't be a 'forgery', it would be a 'tribute' ...... just like all those fake Waffen marks seen at gun shows are intended to 'inspire' rather than 'deceive').  But a check in John Walter's 'German Military Letter Codes' revealed that someone already used 'bhs': Farzeugfabrik Westfalia, Franz Knoebel & Soehne, Wiedenbrueck in Westfalen; a maker of automobile components.  Maybe they made optics for autos.



Binocular List #285: 11 Feb. 2004


Subject: Meeting this September in Germany

From: Hans Seeger, Lothar Esch, & Peter Abrahams

First Announcement:

Meeting of The Binocular History Society in Koblenz from 3. - 5. September 2004; in cooperation with the Wehrtechnische Studiensammlung des BWB (German Bundeswehr) on the premises of the WTS (Mayener Str. 87, 56070 Koblenz, Germany).  

We expect 40 to 60 participants.

The next announcement will include information on hotels.  Attendees should be ready to make a reservation at that time (early).

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