Help! I am at my wits end. I have mixed and remixed this developer, and I get entirely random results ( as far as this defect is concerned). I will attach a sample to this post that contains the defect and another image of the blank end of the roll that shows the defect as well (its more accentuated where there is less silver density). My guess is that there are particles that were not mixed properly that cause extra development on parts of the negative. I am wondering if this is due to any other cause? This is Beutler, a fairly simple developer, with Tri-x 400 pushed to 800. I am making the developer dance a bit (my dilution is A3 + B1 + 20 water) for about 22 minutes. I have some developments where this spotting happens, and some where the film is perfectly normal. What is going on? How can i make sure my developer is properly mixed? I am mixing at the correct temperature, adding metol before sodium sulfite, and the sodium carbonate is entirely alone in the water. How am I messing this up? Thank you to all who respond.
I have used this developer before a few years ago without any problems. That is why I am suspicious it may not be the mixing.
Contrast has been heightened to accentuate problem easily visible when printing in the darkroom for any frame that contains it.