I'm not sure just how much of the concern about letting TMZ3200 and Delta3200 sit around is justified.(posted 8714 days ago)I recently developed a roll of Delta 3200 which had been sitting in a P&S for a full two years. It had seen two summers, been carried around in a car on several vacations, probably getting quite hot.
I expected a lot of background fog, but I really didn't see much. Comparing it to a roll of freash Delta 3200 which had been developed promptly the b+f might have been slightly higher but there really wasn't a significant difference and it looked just fine. I was quite surprised, given the "conventional wisdom".
I also recently discovered a roll of TMZ3200 which had hidden itself in my freezer about 10 years ago. I haven't shot it yet but I'm going to, just to see how bad it is!