Forwarding from another discussion about this stuff:
- - - -
Then your films have never gone through a CTX scanner, these are the large
ones that a lot of airports now use for hold baggage scanning.
Portland Oregon also uses one for hand baggage.
These machines will totally destroy your film, they destroyed 3 weeks of
film shot for the latest Attenborough series which is how they cam to the
attention of film-makers.
Initially very few airports had them, Manchester was one of the first, the
staff knew nothing about the increased fog level, I used yo carry a print
out from the manufacturers that explained it would destroy film to
persuade airlines to let me hand carry film, we're talking large amounts
here.
Tests I did several years ago showed that up to 500 ISO 5 passes through
an "average" hand baggage scanner has little/no effect, from there on up
it has random and various effects, base density increases, green bias
appears and random lines will also appear.
- - - -
-- dan
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