The next interesting result I confirmed yesterday was secret of scratches
on my few last negatives. I am sure that scratches are drying marks on
films. My metal clips for hanging negatives just get little bit of dirt and
when I pour wetting agent over them it start loosing some of the dirt which
dries on film.
So I need to clean them, be careful not to pour wetting agent over them
and be sure wetting agent doesn't have a foam on it. Hope this will solve
the problem.