(Might be a query for Simon? )
Does anyone know the typical length of time between the date of manufacture of a film and the expiry date put on the packaging?
And is this longer for modern films than in the past?
(I'm trying to date some photos taken by my late mother...the film packet (1960's) has, for some reason, been kept with the negs, maybe as a reminder of the film used. Obviously, the film could have been used after expiry, but at that time she would likely have bought films one-by-one and used them right away.)