great streaks in the sky
On a few b&w prints i made recently where there's a large uniform grey sky area, i noticed there are streaks starting from the middle of it and continuing towards the edge of the print. It's a minor variation in the density, but visible.
I know it is not an issue with the negative as negative scan and older lab prints i ggot off the neg do not show this. Also, two prints of the same frame show two different "patterns".
Any idea what this is?
I do agitate i think sufficiently; i flip the print a few times in the developer, i rock the tray, and such.
is this "bromide drag" on paper? does that even exist? or is it light leaks? (i have a really dark darkroom but maybe some reflection when the enlarger is on??)
Or is it processing related? exhausting developer? stop bath is messed up?
or something with my fixer??
or am i still not agitating enough?
i get it with amaloco developer, not sure with other types, yet.
Ideas welcome, especially if you recognize what i am describing as something you also encountered (and solved).