Carl Zeiss Jena Biotar 75mm f/1.5
Info and images of the lens:




Made between: 1939-1960
Optical design: 6 elements in 4 groups
Lens mount: M42, Exakta
Covers: Full-frame (24×36mm)
More info can be found here: http://allphotolenses.com/lenses/item/c_921.html
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Camera: Canon EOS 5D Mark II
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Camera: Sony DSLR-A850
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Camera: Sony NEX-7
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Camera: Pentax LX
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Camera: Sony NEX-7
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Camera: Canon EOS 5D Mark II
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Camera: Canon EOS 5D Mark II
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Camera: Canon EOS 5D Mark III