To begin with, this is not something that is causing me a problem, it's just that I don't quite understand what is going on.
Where does my MM measure light for exposure? I thought that it was via the lens. If it is, why do I have to manually set things up when I add an ND filter (e.g. 6 stops for x64)?
I don't seem to have any problems with my orange filter... but then I do tend to work on manual most of the time and tweak.
Thanks,
Mike