Mystery 127 Film
Depends on how it was shot.
Originally Posted by resummerfield
Was this shot recently? Did you compensate for age? (1 stop adjustment per 10 years past expiry works well) if you did, you can develop as normal.
If this is old... But exposed back in the day, I would also develop as normal and maybe push only slightly.
If you exposed it for 125 ASA now, and it's 1970's film, then I would add 2 minutes for every 10 years to the dev time (when using HC-110(B) I would change that to only 1.25 minutes per...)
That's me, the way I expose and develop from my experience and for scanning the film not optically printing.
I have read recently of people developing found films in colder temps than normal. Evidently it holds the fog down.
HC-110 is an excellent choice.