ArchimedesTheDog
Newbie
Not quite sure if this is the proper subforum, so please let me know if it is not, but I am looking for neutral density filters for my Zeiss Ikon Contessa 35 folding RF camera (my first ever rangefinder, actually, just acquired). It seems Zeiss didn't have these in their line back in the day (actually, when did ND filters start appearing, even, overall?) and so I am wondering if there was an aftermarket solution, either a filter or a step-up ring. The thread on the lens is male, and thus us unusual and hard to match.