back in the day
people not only used soft lenses,
but pancake (base ) makeup
and the negatives were blended and retouched with lead.
it is not only the lens ...it is a whole photographic "system"
and state of mind
nothing is ever as simple as it seems ....
you might also try the stocking with a cigarette burn in it
or a smoked filter, or if you are enlarging, passing crkinly
tea package cellophane between your lens and paper ..
or get the lens off of your 1a folder and use it as an ENLARGING lens
instead of a TAKING lens ...