need help finding the minimum aperture for an old lens

aj-images

Member
Joined
Apr 30, 2005
Messages
187
Format
35mm
Hello - Hoping to find out if anyone knows the minimum aperture for an old Rodenstock-Tiefenbildner Imagon lens, # 3587796. There are no f-stops on the lens. Shutter speeds are 50,25,10,5,2,1. Any help would be appreciated.
-Jim
 
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