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 Unnamed 75mm Russian lens for Kiev		  New Topic
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Luiz Paracampo
Luiz Paracampo
Brazil
2002 Posts
My Collection
Posted - May 06 2011 :  04:16:31 AM  Show Profile  Visit Luiz Paracampo's Homepage  Reply with Quote
This very strange Russian lens prototype developed to be used in Kiev /Contax bayonet has no name, but fixed 1:8 aperture with no diaphragm settings, but rangefinder coupled. Has minimum 2,2m close focusing This estrange lens was sold by Leica Shop through Westlicht auction around 2004 it was announced as being a 2/75mm Russian lens for Contax
LP


http://www.ussrphoto.com/UserContent/652011_Russian 75.JPG

Juhani Halmeenmaki
cedricfan
Finland
1020 Posts
My Collection
Posted - May 06 2011 :  07:11:41 AM  Show Profile  Visit cedricfan's Homepage  Reply with Quote
Idea is same that was used in Selena traffic camera lenses: 75mm lens and fixed aperture but normal focusing system.
See: http://www.ussrphoto.com/Wiki/default.asp?WikiCatID=26&ParentID=2&ContentID=1099&Item=JUPITER-38+75mm%2Ff%3A4+M42
So maybe this was also for some kind of special use where lens is focused for one spot and aperture adjustment is unnecessary?

Best regards,
Juhani
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Luiz Paracampo
Luiz Paracampo
Brazil
2002 Posts
My Collection
Posted - May 07 2011 :  2:58:06 PM  Show Profile  Visit Luiz Paracampo's Homepage  Reply with Quote
Juhani
As I did see in the second picture, when mounted in a Zenit E camera, the Jupiter 38 seems to have a diaphragm scale.
This unnamed lens for Kiev has no scale at all! one could not try to change diaphragm unless desasembing the lens!
Regards
LP
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