That is some cool info Mr. Photo Engineer. Never thought about volatiles evaporating in the vacuum.
I always wondered about the Gamma radiation fogging the film... was there lead linings on the Blads?

I talked with David Wolf (shuttle man), he spoke about how much radiation he received daily on the space station.
Wolf said that in the Russian part of the station some of the windows are not lead glass and your hair will burn right off your arm when the sun shines directly through.