Originally posted by Blue Its interesting that it has an A-M switch on it if it uses aperture plates.
That's true. Perhaps they made only a small production run of those soft focus lenses and simply used the barell assembly they already had?
BUT it could also be a later one-off modification. See the silver ring. There is the infinity indicator and the DOF indicators missing. SO the tube was disassembled and and that black ring with the indicators was omitted. Perhaps the person also got rid of the original aperture assembly and inserted the imagon-like diaphragm instead?
Ben