I've discovered that Ilford Delta 3200 suffers from room-temperature fog. I developed three rolls: two were exposed about a week ago, and were kept in a fridge before then. One was in a different camera for about five weeks, generally at room temperature. All were from the same brick of film (expiry December 2001).(posted 9277 days ago)The film stored in the camera for 5 weeks showed much greater fog in the unexposed portions of the film. It is still entirely printable, but it does suggest that the Ilford expiry dates are far too optimistic if the films are stored at room temperature.