06/18/2026
I like to call it “the common denominator.”
Sometimes a client already has adapters from A→B and C→D, but really, wouldn’t it be nicer to just go straight from A→D with one clean solution?
In this case: Series 9 to a Lee 100 filter system. Sure, you could stack step-up and step-down rings, add weight, reduce clear aperture, and make life complicated… or you could just make one proper custom adapter and eliminate the headache.