NEX-5 + Speed Booster @f8 D700 by koji kawakami

w Kern Switar 50mmF/1.8 w/o shutter bulge
which were made 1,526 from 1951 to 1955
Five samples > https://pbase.com/kkawakami/image/149708955

Also with Kern Macro Switar 50mmF/1.9 + Speed booster
Six samples > https://pbase.com/kkawakami/image/149860838

other sizes: small medium large original auto

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