I'm no expert either and I won't be rushing to wikipedia to find the "facts".
I recall someone questioned the use of cameras on the moon and the person pointed out that the radiation from an airport screening thingy (a minimal amount by comparison) can wipe the film in the camera clean.
When it was put to NASA, they responded (apparently, can't back this up) that they wrapped the camera in tin foil!

If that's true, then someone is taking the piss.