Aperture ring on M lenses made in Canada
I own three Summicrons: 35 mm (Canada),
50 mm (Germany) and 90 mm (Canada). The white dot on the aperture ring
on both Canadian lenses is off-centre and does not align with the
center of the depth-of-field scale. In both cases, the white dot is on
the side of the lens barrel, i.e. the side of the camera where the
film-advance lever is located. This is not the case with the German-made
lens, where the white dot appears on the top of the barrel and is
aligned with the depth-of-field marker. Question: were the Canadian lenses made this way? (I am not the original owner, so I don't know if any work was performed on them.)
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