I searched and can't find some detailed info on this...
Couple of years ago I developed ECN2 cinefilm in HC-110 and results were usable but too dark (negative) for regular printing under enlarger. Instead of my regular exposure of 10-30 seconds, I have to keep it for two minutes under enlarger.
I asked here sometime ago and I'm not the only one who was using ECN2 color film for BW negatives. But how do I get normal bw negative from color ECN2 film? I was using HC-110 and developing time, mix for regular bw films. Because it came too dark after developing, do I need to make it shorter?