Sirius Glass
Subscriber
I've shot plenty of expired film, all of which fall "unkown storage" category to an extent, come out fine. The films I've shot so far have been:
3M Scotchchrome 1000 (Expired: Unknown)
FPP Retrochrome (AKA Kodak Ektachrome 400) (Expired: 2004)
Kodak P3200 (Expired:12/2014)
Fujichrome RF 50 (Expired: 10/1988)
Fujichrome Sensia II 100 (Expired: 10/2000)
Fujichrome Sensia 200 (Expired: 10/1998)
Fujichrome Provia 400F (Expired: 12/2003)
Ilford HP5 400 (Expired: Unknown)
The only rolls of slide film I had issues with was a roll of 3M Scotchchrome 1000 (no idea when it expired, came out very grainy & had major color shifts), Fujichrome RF 50 (expired 10/1988) came out but VERY faded.
For the b&w films, the Kodak P3200 didn't do well when pushed to 3200 & 6400, the Ilford HP5 400 came out fine (I exposed it at 100 & had it developed normally).
That is an impressive list. Thank you.