Quote Originally Posted by Brian C. Miller View Post
Perfluorooctanesulfonic acid (PFOS).
Which isn't present in the 35mm version of Neopan? Isn't present in any of the Ilford 120 films? Isn't a banned substance in the U.K. where Ilford films are made?

Do you know which of these apply?

I know there was a thread on the demise of 120 Neopan 400 but it was never very clear to me exactly what the nub of the problem was