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A question about Carl Zeiss JENA Deltrintem 8X30

equipment binoculars
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7 replies to this topic

#1 Redgrave

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Posted 17 July 2017 - 09:31 AM

Hello guys,

 

I have a Carl Zeiss JENA Deltrintem 8X30 binoculars. It's serial number is 1169204. According to this form http://www.europa.co...pe/zeissbin.txt it should be made between 1921~1922. But it also has a mark "Germany"on it. As I know only post war made had "Germany" mark. Is it genuine or a copy?

 

Can anyone tell me anything about it? Any information would be appreciated.

 

Thanks

 

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Edited by Redgrave, 18 July 2017 - 07:00 AM.


#2 jtsenghas

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Posted 17 July 2017 - 11:55 AM

The only info I can help you with on this one is instructions on posting photos:

 

Your image must be less than 500 kB. In fact the total of all attachments must be less than 500kB, so you may have to reduce a high resolution photo even if you simply open it in Microsoft's Paint and resize it to 10-30% and resave it. (That program will show the file size after you resize it ONLY after you resave it).

 

Choose the "More Reply options" button on the bottom of the post you are composing, click the "Browse..." button under attach files, select your file, and choose "Attach this file". It will then appear with your post.

 

If you want it to appear in a specific place within the text of your post, insert your cursor there, and click the "Add to post" button to the right of the file thumbnail.

 

You can always see how the post will apper by by clicking "Preview Post" at the bottom of your screen before actually posting to verify.



#3 Mad Matt

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Posted 17 July 2017 - 01:25 PM

Is the focusing knob plastic or metal? Here is a little info on the official Japanese Zeiss 8x30 had 6https://www.flickr.c.../in/photostream

#4 Foss

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Posted 17 July 2017 - 04:37 PM

For reference, here's a pair (circa 1922) I once owned with "Germany" stamped on the IPD scale. Yours look genuine to me.

Attached Thumbnails

  • Z1193924bSM.JPG

Edited by Foss, 18 July 2017 - 08:17 AM.


#5 Redgrave

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Posted 18 July 2017 - 07:03 AM

Ok, photos upload

 

Focusing knob? I'm not sure, I need to check it. What's different between plastic and metal?



#6 FrankL

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Posted 19 July 2017 - 08:28 AM

It's genuine.

 

Some 1920's - 1930's Zeiss are marked "Germany" and some are not. My Delactis made in 1926 is marked Germany while my Deltrintem made in 1936 is not. 

 

The focus knob on my Deltrintem and most if not all others from this period is plastic (or possibly Bakelite) with an inset metal disc with focus settings which is retained by 3 screws along the edge of the focus knob.

 

The Deltrintem/Deltrentis eyelenses underwent several modifications. The first ones had a 5 element Erfle type eyelens; during the later 1920's a 6 element Erfle type was used; in 1932 a non-Erfle 4 element aspheric lens was introduced; and circa 1946 they reverted to a 5 element Erfle type. 


Edited by FrankL, 19 July 2017 - 08:33 AM.


#7 Redgrave

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Posted 25 July 2017 - 10:27 AM

Hi,guys

 

I've checked .The outside ring of focusing knob is looks like plastic, but inside marked with numbers it seems to be metal.

 

So, is it made by Japan?


Edited by Redgrave, 25 July 2017 - 10:27 AM.


#8 trener

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Posted 25 July 2017 - 02:05 PM

Do they have any AR coatings?




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