Thanks guys. So I've agreed to a trade and will soon be getting a very nice compact (and by all accounts sharp and modern-looking) 40mm Rokkor CL (single coated, vs the multicoated CLE version), but then some folks pay extra for the single coated version of the C/V 40mm f1.4.
Wouldn't the 35mm framelines be closer than the 50 when using the 40mm lens? I guess it's better to include more on the negative and crop it out later than to exclude something important, but wouldn't most of our shots benefit from tighter framing? I won't do anything for a while until I get used to this setup, but there is a bit of filing to be done to have the lens bring up 35mm framelines, right?