HP5 streak w/Pyro

I just developed the above roll of 120 in Pyro and fix w/ TF4 following the
recommendations in the book. I've been using Pyro for about 4 years now and
have had good results overall. I noticed a random pattern of streak towards
one edge of the film. It is similar to the pattern you get when you take a
wet brush and shake it towards the ground in one stroke. Under the loupe it
is tiny black spots in a strip nearly the entire length of the film approx
1/16th inchwide. Is this left on from the wash process, perhaps? I washed in
a 120
metal film tank w/ four small holes in the bottom for 30 mins. that I hadn't
used before. Any knowledge is appreciated- Lib

I wonder if there was enough developer in the container . Perhaps, the
upper edge was being irregularly sloshed and did not get as much time in
developer as the rest of the film.


Francis A. Miniter


lib wrote:

I just developed the above roll of 120 in Pyro and fix w/ TF4 following the
recommendations in the book. I've been using Pyro for about 4 years now and
have had good results overall. I noticed a random pattern of streak towards
one edge of the film. It is similar to the pattern you get when you take a
wet brush and shake it towards the ground in one stroke. Under the loupe it
is tiny black spots in a strip nearly the entire length of the film approx
1/16th inchwide. Is this left on from the wash process, perhaps? I washed in
a 120
metal film tank w/ four small holes in the bottom for 30 mins. that I hadn't
used before. Any knowledge is appreciated- Lib