I develped a lot of TRI-X 5X7 negatives in PMK back in the early 90s and they have quite a lot of greenish/brown stain. Recently I have been scanning these negatives to make enlarged digital negatives for carbon and kallitype printing. On both my scanners, an Epson 2450 and an Epson 836XL thes negatives scan ok, without any particular problem, with just slightly more contrast than what one would see with a negative developed in a non-staining developer.

Sandy King