F-mounted Contax G-Sonnar 90mm F2.8

[koji]

It was originally modified for EF-mount, but it was changed for F-mount, which also can be used for EOS_5D too.
How to? See > http://www.pbase.com/kkawakami/top_level_contax_g_sonner_90mm_modification

Actually the lens body has shortened to M42->M42 helicoid(11~18mm) + M42->F adapter. range = 1.3m ~ infinity
[url=http://forum.mflenses.com/userpix/20125/big_651_D700_MP50ZF_YYZ0666_1.jpg]
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100% crop of CN tower (2.7Km away from my place), the can focus a bit beyond this distance. @f2.8
[url=http://forum.mflenses.com/userpix/20125/big_651_NEX5_GS90m_DSC9628_1.jpg]
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For normal portraiture distance @f2.8


At close distance 0.45m @f22, using double helicoids (11~18mm + 16~26mm)

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