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Archives of an email list on the history of binoculars. - page 97 / 150





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The question is "Is it detrimental to handle the binocular when the caging switch is set to on?" For example, if three people shares one gyro-stabilized binoc, is it necessary to have each person turn the caging button off before he transfer it to the person next to him.

I guess my question can also be phrase as "Is abrupt panning detrimental to a gyro-stabilized binocular?"





Binocular List #280: 14 December 2003


Subject: Meeting in Tucson March 20-21

  Although we're getting a good deal on the hotel, hundred dollar nights do add up.  I am willing to coordinate room sharing, off list.  If you want to split a room, email me & I'll put you in contact with others who also want to split a room.


  We've been receiving some very good proposals for papers at this meeting.  Some of these good proposals are not quite about the subject matter that we are addressing, so I will be a little more specific.  We are meeting to discuss the development of binoculars - the history of their technical aspects, their use in historic events, their place in the military & society of the past, the history of factories, equipment, & collimators, and related topics.  Even these papers would need to stick to the subject of binoculars, and not for example be a history of some war campaign with notes about binocular use.

  There are related (& interesting) topics that are too far afield: the use of binoculars in birding and astronomy, theory of visual resolution in binoculars, recollections of observations made using binoculars.

  There are topics that are a tough judgement call: Instructions on collimating binoculars.....here I'd say it depends on how full the sessions are and the precise subject of the talk (how to use a collimator that no one owns, or how to collimate an odd model - might not work).


  In addition to meeting friends, swapping binoculars, and learning about history, these meetings can be useful in a larger sense.  Certainly the people who attended earlier meetings in L.A., Portland, and San Diego, will agree that some momentum towards a larger goal has been achieved.

  There are people who can do a lot for us, such as museum curators, military archivists, and professional historians.  A meeting such as this can tell them of the level of interest & commitment that we share.  Sometimes when individuals approach these institutions, they do not receive a useful response, and perhaps an organization can help with this.

  There has been some interest in papers on Bausch & Lomb.  If we get several papers on B & L, we will group them together, encourage displays on B & L, and contact the B & L archives in Rochester to let them know the level of interest in their early products.

  Likewise, there might be papers on the U.S. Navy Opticalman rate, now deleted by the Navy, but surviving in places such as the 'OM-IM Association':  http://omim.pair.com/      If we can persuade some of these people that we would like to help document & record their work, equipment, & schools; that would be a very useful product of a meeting such as the Tucson event.

  If you are interested in a paper or a display on B & L or the OM rate, please contact me.

  And don't forget the meeting in Germany in late September; details to follow soon.

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