Carl Zeiss Jena DF 7x50 Extremly early model? (1 Viewer)

[Asomer]

Hi,

I am trying to some research on these binoculars
Carl Zeiss Jena DF 7x
Serial number: 253733

From what i gather it is the military version of the Noctar model. But with an extremly low serial number.
I am thinking it has to be a test model from a very early stages of prodcution?
Does anybody have the zeiss blue book to provide some more info on this?

(More photos in attachemnts).

Kind regards,
AndrejView attachment DSC_1063.JPG

 

[Foss]

You might scroll thru Binocular Historical Society forum pages to see what you can find.

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binopedia.info

 

[Ignatius]

They are from 1911.

 

[Gumball]

This DF 7x50 was manufactured from 1914-1919. The "civilian version" was center focus.

 

[Ignatius]

It was a military version (maybe for testing purposes) of this.
Here is some more information.

 

[Gijs van Ginkel]

As far as I can see it is a Zeiss DF 7x50 from 1915, 1160 g, FOV 128m/1000m, From 1919 called Binoctar and made until 1945.
Gijs van Ginkel

 

[LCG05]

I have several Carl Zeiss binos but not the binoctars, From what I have learned, They ran from 1919 to 1971.

 

[jring]

Hi,

first of all, welcome to birdforum!

You really fooled me with the title, when I read CZJ DF 7x I stopped reading and thought of the cold war era east german DF 7x40 in green rubber...

Interesting pair, a bit too old for me to be able to contribute more than what was already mentioned!

Joachim

 

[Ignatius]

The Zeiss D.F. 7x50 from 1915 referred to by others looks nothing like the O.P.'s binoculars. I stand by what I said in posts #3 and #5.

 

[Ignatius]

Addendum
I have finally got my Seeger out of the moving box. The O.P.'s binocular is on page 58. The Noctar 7x50 with Abbe-könig prisms was introduced in 1911/12 and it soon became the D.F. 7x, especially with the Kriegsmarine. Even the advent of the later Binoctar 7x50 from 1918/19 (the binocular erroneously identified by some as the O.P.'s, page 102 in 'Seeger, 1919-46') did not lead to the immediate demise of the Noctar in military use - it was that good.
I believe the O.P.'s glass is also mentioned on the Köhler list on page 792 of Seeger.