Originally Posted by Richard Marks
[...] I do not think that Cokin make mounting rings small enough for rangefinder lenses. (at least I can not find a 39mm one). And the graded scale is a nice feature. [...]
I agree with the grade scale. For the fitting problem, have you considered a step-up? I still have a 39->46 and a 46->52.
Talking of diameters, do you think the product identifier maps to 75mm max filter thread diameter on the lens side?