I have noticed streak marks in areas of smooth tone that correspond to the drain holes in the bottom of my film hangars. Reducing agitation and presoaking create mottling.
I have been using D76 undiluted and HB110 b with 4x5 FP4+.
Based on past studies, this is most likely coming from the the initial immersion when the turbulance at the hole location causes faster local absorbtion of developer. Later immersions contribute also.
I have tried slowing the rate of immersion to no avail.
Will increasing the developer dilution mitigate the problem or are there other solutions such as maybe a two part developer.
Bookmarks