I just got an old Voigtlaender Bessa folder from a friend. In it is a very old Agfa Isopan F film - 120 format. I would love to develop this film - hopefully to save some important family photos for my friend, so I need help to identify a development time and developer that will fit this film. What sensitivity did this film have? I normally develop in Perceptol - would another developer be better for this film? If there turns out to be anything on the film, I will post an example here. Thankyou very much for your help.