KGB fish eye by Zeiss

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Printed on: 5/7/2026 2:43:54 PM

Topic

Topic author: Luiz Paracampo

Posted on: 20150105155409

http://www.ussrphoto.com/resize/resize_image.aspx?ImgWd=800&IptFl=/UserContent/512015_kgb zeiss.png

http://www.ussrphoto.com/UserContent/512015_kgb zeiss.png

at
http://www.marcocavina.com/articoli_fotografici/Zeiss_cute_DFR_DDR_lenses/00_pag.htm

Replies

Reply author: AlexanderK

Replied on: 20150105174626

Very interesting, Luiz.
The camera seems to be based on F-21, but the CZJ-lens is really a masterpiece.

Reply author: Jacques M.

Replied on: 20150106031045

And thanks for the site I did not know. What a mine of information about rare Zeiss lenses...

Jacques.

Reply author: Detlev

Replied on: 20180730152052

The camera is a design of the OTS (Operativ technischer Sektor) of Stasi
and not a F21 clone

Reply author: Detlev

Replied on: 20180730155014

The lens is a pinhole lens JO-1

http://www.ussrphoto.com/resize/resize_image.aspx?ImgWd=800&IptFl=/UserContent/3072018_JO-1SGk.jpg

http://www.ussrphoto.com/UserContent/3072018_JO-1SGk.jpg

Reply author: Luiz Paracampo

Replied on: 20180802193717

I believe to be a telecentric relay formula once pinhole has no lens at all

Regards
LP

Reply author: Luiz Paracampo

Replied on: 20180802194831

see complete optical details at
http://www.marcocavina.com/articoli_fotografici/zeiss_cute_dfr_ddr_lenses/00_pag_english.htm
LP

Reply author: Detlev

Replied on: 20180803101328

Last try

http://www.ussrphoto.com/resize/resize_image.aspx?ImgWd=800&IptFl=/UserContent/382018_Prosp_a.jpg

http://www.ussrphoto.com/UserContent/382018_Prosp_a.jpg

Reply author: Luiz Paracampo

Replied on: 20180803104949

all thet is true but the real pinhole, can't be seen at the diagram.
so far extraordinary low apertures cant aid instant fotos. if any movement the photo will be blurred or simply unregistered what is not wanted and really useless by any spionage dept.
Regards
LP

Reply author: Luiz Paracampo

Replied on: 20180803105157

according to your robot pictures included it is a relay (telecentric) lens.
Pierre Touzelet will have the final word.
Regards
LP

Reply author: Detlev

Replied on: 20180803110510

Here you can see the pinhole of the JO-1.
Regards,
Detlev
, diameter 1 mm

http://www.ussrphoto.com/resize/resize_image.aspx?ImgWd=800&IptFl=/UserContent/382018_EintrittspupillePfeil.jpg

http://www.ussrphoto.com/UserContent/382018_EintrittspupillePfeil.jpg

Reply author: Detlev

Replied on: 20180804095242

The pinhole lens JO-1 consists of a wide angle front-stop lens and an image side telecentric lens

Detlev

Reply author: Luiz Paracampo

Replied on: 20180804112047

Now it is clear!
For optical working the front stop is unesseary it is used only for desguising purpose!

Regards
LP

Reply author: Detlev

Replied on: 20180804123135

The lens was used by the Stasi to take compromising photos in hotels. Therefore it was necessary to disguise the lens opening.

Reply author: Guido

Replied on: 20180805083004

Hi all

By the way there is a 24mm Macro lens on Kickstarter now with an opticaly very similar construction like the Zeiss JO-1:

https://www.kickstarter.com/projects/laowa/revolutionize-macro-videography-laowa-24mm-f-14-pr?ref=epdhdr

http://www.ussrphoto.com/resize/resize_image.aspx?ImgWd=800&IptFl=/UserContent/582018_8b57eb50abc7d59e6292c472fc45a307.jpg

http://www.ussrphoto.com/UserContent/582018_8b57eb50abc7d59e6292c472fc45a307.jpg

Best wishes - Guido

Reply author: Moxies

Replied on: 20180821165622

<blockquote id="quote">quote:<hr height="1" noshade id="quote">Originally posted by Jacques M.
 
And thanks for the site I did not know. What a mine of information about rare Zeiss lenses...

Jacques.

<hr height="1" noshade id="quote"></blockquote id="quote">
He also has some very interesting pages about rare soviets. Since he's friend of Dr. Mladek, he has access to rare birds.

Take a look on this page http://www.marcocavina.com/articoli_tecnici_fotografici.htm and look for the word "sovietici" (Ctrl+F), you will find some interesting articles