On 1 Jul 2002 at 12:58, Peifer, William [OCDUS] wrote: > Mike Nosal wrote: > > My photo lab has a sign up warning customers that they've experienced > > problems with APS film being fogged by X-ray security machines, but not > > other film types. I'll ask them for more info next time I'm there. > > > Could it have something to do with the magnetic layer on APS films?
>From what I understand APS film is manufactured with a magnetic coating over it's entire photosensitive surface it is also a different base material than used for 120 or 135 films polyethylene naphthalate (PEN). Whether the backing affects the films x-ray susceptibility I don't know however the fact that they have a plastic near x-ray transparent shell may. I can't vouch for the susceptibility of 120 films to carry-on x-ray exposure as I have managed to avoid their exposure by having them processed before flying. When I shot APS in my travels I managed to carry it on my person through the metal detectors without a problem so I didn't have to subject it to x-ray inspection. I would guess that had I done so the damage would have been visible considering the number of times my other gear was x-rayed. Cheers, Rob Studdert HURSTVILLE AUSTRALIA Tel +61-2-9554-4110 UTC(GMT) +10 Hours [EMAIL PROTECTED] http://members.ozemail.com.au/~distudio/publications.html - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
