Jon, You must have had fast and huge (over 20C) temperature cyclic variations in order to get reticulation (yes, this the term). You wouldn't sense fast alternating cold and hot water with a commercial thermometer. Never got it with E6 films, nor with Delta 100, HP4 or APX 100, though I did see huge reticulation occasionally on old Orwo B&W films.
Servus, Alin >> I used a deep sink of water at 40C to maintain the chemicals in the >> tank at approximately the recommended temperature, and did not find my >> results significantly affected by any deviation from the standard JG> Back when I had my darkroom, I had a devil of a time keeping my water JG> temperature consistent. Our "old" bathroom had two different JG> faucets--one for hot and one for cold. It was difficult for me to keep JG> constant temperatures. A couple of degrees, and the film suffered JG> horribly from reticulation. It looks like bad grain, but the best way I JG> know to describe it was like glass shattering. The temperature JG> fluctuations would cause the emulsion to shatter. This was Tri-X 400 JG> usually, B&W. Is color slide film _less_ sensitive to temp. JG> fluctuations than this? That would be convenient! :-) However, I JG> personally would recommend assuring that your equipment can maintain JG> constant temperature. I ruined some good pictures thanks to my setup.
