Archived posting to the Leica Users Group, 2003/10/09

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Subject: [Leica] Airport Scanners and Film
From: "Saganich, Christopher/Medical Physics" <saganicc@MSKCC.ORG>
Date: Thu, 9 Oct 2003 11:41:54 -0400

The Kodak technical bulletin is very informative.  Apparently if you request a hand inspection of photosensitive material US inspectors have to comply according to FAA regulations.  I know a couple people who had their film devastated by the baggage CAT scanners.

After reading all the literature I could find on airport scanners, including the NAPM and FAA's extensive testing, I am still not convinced. While obvious fogging effects aren't apparent, there seems to be an effect on grain in B&W films.  Yesterday I developed two rolls of film in the same tank and I noticed after scanning one roll that the grain was different then what I'm used to, but I didn't give it a second thought until I scanned a second roll and the grain was noticeably different, smoother.  The only difference between the chunky grain and smooth grain was the plastic canisters compared to the metal canister.  I have two more sets like this to develop so I should be able to tell if there really is a difference or if I've been sniffing Metol too long. :>)



Chris Saganich


 
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