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Luiz Paracampo
Luiz Paracampo
Brazil
2002 Posts
My Collection
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Alexander K.
AlexanderK
Germany
590 Posts |
 Posted - Jan 05 2015 : 5:46:26 PM
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Very interesting, Luiz.
The camera seems to be based on F-21, but the CZJ-lens is really a masterpiece. |
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Jacques M.
France
2604 Posts |
Posted - Jan 06 2015 : 03:10:45 AM
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And thanks for the site I did not know. What a mine of information about rare Zeiss lenses...
Jacques.
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Detlev Vreisleben
Detlev
Germany
109 Posts |
Posted - Jul 30 2018 : 3:20:52 PM
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The camera is a design of the OTS (Operativ technischer Sektor) of Stasi
and not a F21 clone |
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Detlev Vreisleben
Detlev
Germany
109 Posts |
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Luiz Paracampo
Luiz Paracampo
Brazil
2002 Posts
My Collection
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Posted - Aug 02 2018 : 7:37:17 PM
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I believe to be a telecentric relay formula once pinhole has no lens at all
Regards
LP |
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Luiz Paracampo
Luiz Paracampo
Brazil
2002 Posts
My Collection
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Detlev Vreisleben
Detlev
Germany
109 Posts |
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Luiz Paracampo
Luiz Paracampo
Brazil
2002 Posts
My Collection
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Posted - Aug 03 2018 : 10:49:49 AM
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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 |
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Luiz Paracampo
Luiz Paracampo
Brazil
2002 Posts
My Collection
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Posted - Aug 03 2018 : 10:51:57 AM
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according to your robot pictures included it is a relay (telecentric) lens.
Pierre Touzelet will have the final word.
Regards
LP |
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Detlev Vreisleben
Detlev
Germany
109 Posts |
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Detlev Vreisleben
Detlev
Germany
109 Posts |
Posted - Aug 04 2018 : 09:52:42 AM
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The pinhole lens JO-1 consists of a wide angle front-stop lens and an image side telecentric lens
Detlev |
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Luiz Paracampo
Luiz Paracampo
Brazil
2002 Posts
My Collection
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Posted - Aug 04 2018 : 11:20:47 AM
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Now it is clear!
For optical working the front stop is unesseary it is used only for desguising purpose!
Regards
LP |
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Detlev Vreisleben
Detlev
Germany
109 Posts |
Posted - Aug 04 2018 : 12:31:35 PM
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| The lens was used by the Stasi to take compromising photos in hotels. Therefore it was necessary to disguise the lens opening. |
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Guido Studer
Guido
Switzerland
362 Posts
My Collection
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Pierre Tizien
Moxies
France
183 Posts
My Collection
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Posted - Aug 21 2018 : 4:56:22 PM
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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.
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 |
Edited by - Moxies on Aug 21 2018 4:57:11 PM |
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Topic |
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KGB fish eye by Zeiss
