Hello! First post on the forum. Attachment 215565
I’ve been doing some color printing this week and have been getting these streaks on various prints. It doesn’t happen every print, even ones processed in the same hour or so. I’ve done the 10 minute sit in total darkness to look for any leaky light in the darkroom. Also it’s happened on my 8x10 and 16x20 prints, so it doesn’t appear to be a paper fault. There also seems to be a consistent curve of the line towards one end of the print, and it does run the same direction of the length of the print drum. Chemical related?
Also could be a total coincidence, but does anyone know if RA4 reacts with copper or brass? My wedding band is a combination of the two, and the times I’ve remembered to remove it SEEM to align with prints that didn’t have the streak. But I can’t find anything supporting that theory.
Here’s the setup/process
Jobo cpa2
Jobo 4541 drum (8x10)
Jobo 4561 drum (16x20)
Arista Ra4 kit
Fuji CA Paper
Develop and blix at 85F for 3 min each
Streak is there by the time I open drum to wash print
Thanks in advance! Everything post I’ve perused up to now has been incredibly helpful - from purchasing my 4x5 camera to proper sheet film developing.