#expiredfilm

I shot a roll of Fuji Neopan 1600 (unlabeled as ISO 400 in the box) in a dim bar using zone focusing and underexposed it by two stops Develop it at D76 1:1 with a 20% push. The negatives look muddy as hell but the prints are sharp with strange shadow separation. Someone explain why this works or confirm I’m just hallucinating from expired chemicals. I’m not here for hand-holding, I want to know if pushing in the darkroom negates lens limitations or if I’m just being a cheap bastard.