Originally Posted by
bob carnie
This is a vexing problem for even the most experienced worker.. I had processed over 50thousand rolls sheets of film before I saw a problem somewhat like posted.. Always in neutral bckgrounds and for the life of me it took 3 months and I closed down my film development till I could solve the problem. Basically I attributed it to the water coming off the city line, and more importantly I started doing manual inversions and twists in the first 15 seconds of development.... this allowed the developer to get to every square inch of the film in the least amount of time... I am sure this is why some recommend a presoak, which allows the chems to get where they need to be faster.... I use Jobo and to this day still do the twist and invert before the second I get the full amount of developer in the tank, this has solved all my issues with this very common processing problem..
You may want to use distilled water in your developer as well , which may allow the transfer quicker to engulf the entire surface with fresh developer.
Bookmarks