Difference between Contax G/ Zeiss ZM lenses?

L Collins

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Not talking about AF/MF issues, but optically. How if in any way, is the 45 Planar different from the 50 ZM, or the 35 Biogon G from the 35 Planar 2.0?
 
As far as my understanding, there are no real discernible differences between the two. You can google and probably find the optical make-ups of each and see for yourself. Both Gs and ZMs ,were and are, made by Cosina in Japan.
 
As far as my understanding, there are no real discernible differences between the two. You can google and probably find the optical make-ups of each and see for yourself. Both Gs and ZMs ,were and are, made by Cosina in Japan.

Actually I'm pretty sure Kyocera built their G lenses with Zeiss supervision. Not that it matter to the OPs question :)
 
My bad. Contax G lenses were manufactured by Kyocera. The ZM lenses are manufactured by Cosina. Both series of lenses are designed by Zeiss and manufactured under license from Zeiss Germany.
 
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