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Archives of an email list on the history of binoculars. - page 92 / 150

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falls on the fifth place, five minutes of arc. how can this be??, again off by a magnitude of six (6).

My analyses is that the scale on the Fujinon collimator is not expressed in minutes of arc, but tenths of a degree. This would explain the one degree error landing on the tenth place, and the 30 minutes of arc error showing up on the fifth place.

Check points. Both machines have been checked for calibration, and so to verify, a binocular of a known angular value is placed on the Mk V. Within minutes of arc, the FOV matches what is expressed. So now let's put this on the Fujinon. Fujinon has a power scale. Now the bino's line up to within a few tenths of the power expressed on the glass. Both machines read true. If either machine is off, it's certainly not by a factor of six!!

Does anyone have any experience expressly with these two machines??

I use these both daily, and as long as I think tenths of a degree error on the Fuji, not minutes of arc, we get along fine.

Cory Suddarth

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Subject: Maroctit

From: John Chapter <johnchapter@___m>

I just picked up an old E.Leitz 8x60 binocular is fair condition. It is the Maroctit model with serial no. 535792. They look like 1950's vintage to me but I can't find any info on them and anything you could email me would be appreciated.  Also, the Vulcanite is all gone and I am probably going to  paint them, with crinkle paint, as recovering them with something, looks like a tough job. Thanks for your help, John Chapter, Lakewood, CO

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In the file at:

http://home.europa.com/~telscope/leitzbin.txt

Is the only information I have on this model.  I owned a very clean example, it gave very sharp images but the field was very narrow & I sold it.

8  x 60  Maroctit,  6 deg field;  1932 -1962, $192 in 1954; $250 in 1961 CF. 1250 gm.

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Subject: unsatisfied customer

From:  Arthur Tenenholtz

  I think that I may have to join William Cook in lamenting the service offered by certain binocular manufacturers.  I recently acquired an expensive Japanese binocular and found the accessories deficient.  Both  rain guard loops were split resulting in the temporary loss of the rain guard.  The case has no strap and unlike the cases for Zeiss and Leica, the binocular's strap is not threaded through slits in the case.  When I remove the binocular from the case, I am at a loss at what to do with the case:  put it between my knees or on the ground!  I suppose that it is not meant to be  a carrying case but only a storage case.  When I wrote to Nikon USA, I was told that no one else ever complained and that they would not provide me with any replacement, although my thoughts would be forwarded to product development.

  Since I like the glass, I felt obliged to buy a Zeiss rain guard and I use a cheap padded vinyl case which has both a detachable shoulder strap and a belt loop.   I am sure that I was dealing with one of the firms on William Cook's short list.

Arthur Tenenholtz

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