>>4479812They aren’t, regardless of what the manufacturer of the X-ray machine states. Kodak and a few others have done tests to show what these scanners do to film. Even after one pass film as slow as ISO 100 shows changes.
My last trip was fine for the most part until my flight back one airport would not listen to reason and I had about 30 sheets of film and 25 rolls of film X-rayed.
Thankfully, I had multiple lead lined bags and I double bagged all my film. I forget the source but there was one online blog where the photographer hypothesized that multiple lead lined bags would do the trick but he didn’t think anyone would carry around that much weight since it was borderline kinda unreasonable. Turns out I am that kind of person and they were right, at least to my eyes; I see no additional grain or weird color cast in my film compared to what I’ve shot in the past so that’s what I’ll be doing from now on.
See attached throwaway Vision3 500T shot— it’s kinda soft but that’s because I took the shot through a window pane.
