X hits on this document

Word document

Archives of an email list on the history of binoculars. - page 75 / 150

484 views

0 shares

0 downloads

0 comments

75 / 150

http://www.monkoptics.co.uk/index.html

   The Chinese 'biocular' has two eyepieces into one objective, and the British distributor seems unaware that 'biocular' is already used, to describe 'one eyepiece for two eyes' - like looking through a 4 inch magnifying glass with both eyes.  

As Mike noted, the Japanese made something of the 'two eyepieces - one objective' variety, which I've only seen in pictures.  I have also seen a European made 'two eyepieces - one objective' unit, that looked about 1920s.

   Mike didn't have an image of the Miyauchi on his site yet, so I'll post an address where an image can be found.  I like the design, though there has been some discussion on astronomy lists that it is rather effete - some people only like black (which I think is a mistake, it ensures the binocular will get overheated in the sun.)

   A wide angle 7 x 50 will be a very welcome addition; Zeiss made the excellent 7 x 50 'Artl' during WWII; and the Bushnell 7 x 50 Custom was very good; but overall the 7 x 50 WA has been very neglected, and other Japanese models I've seen have been poor quality.

http://www.oberwerk.com/bigbinos/images/m7x50-3.jpg     7x50, 9.5°FOV,  Apparent FOV is 68 degrees, individual focus, nitrogen filled, waterproof.  Possibly about $700.  "the eyepieces have hemi-spherical lenses"  (hemispheres! what will they think of next?)

--Peter

=================================================

Subject: WWII AAA Searchlight Binocular Mount

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

  Just bumped into this web page (have not fully explored what's here), on WWII anti-aircraft (AAA) units,

http://www.skylighters.org/photos/index.html

which has scans of the manual for a WWII anti-aircraft searchlight

TM 5-7144, 60 inch GE 1941 Searchlight

http://www.skylighters.org/special/fm/pindex.html

Includes pages on the binocular mounting (appears to be standard 7x50 or similar):

http://www.skylighters.org/special/fm/fm11.html

Shows overall view of searchlight equipment, including binocular mount (control station):

http://www.skylighters.org/special/fm/fm34.html

------------

Here is a commercial (Swedish?) web site featuring high-end military type gyro stabilized binocular systems:

http://www.laseroptronix.se/gyro/gystsys.html

(Have not fully checked this one out, but it looks like Government expen$ive level!)  Neat to look at, though.

Like a former US Senator was found of saying, "A Billlion here and a Billion there, pretty soon you're talking REAL

money!"

---------------

An extensive site with lots o' info on binoculars -- many links:

http://wntapp.cc.utexas.edu/~ecannon/binoculars.html  

Cheers,

Gene Lucas

(17250)

============================================================

===========================================================

Binocular List #273: 26 October 2003

============================================================

Document info
Document views484
Page views484
Page last viewedSun Dec 11 10:35:26 UTC 2016
Pages150
Paragraphs3634
Words73788

Comments