Re: [NTLK] I'm back (and bad news)

From: Laurent Daudelin (laurent_daudelin_at_fanniemae.com)
Date: Tue Apr 09 2002 - 10:08:31 EDT


On 09/04/02 04:35, "Robert Benschop" <rbenschop_at_mac.com> wrote:

> on 09-04-2002 6:44, Ed Kummel at tech_ed_at_yahoo.com wrote:
>
>> I was told that the x-ray machines will not harm film
>> under 1000-ASA. But logic dictates that if it harms
>> 1000-ASA film, then it will also harm all other film
>> speeds, except not in a visually sensitive manner. I
>> suspect that if you run 800-ASA or even 400-ASA film
>> through an airport x-ray machine and then examine the
>> film carefully under controled labratory conditions,
>> you would find perhaps a not-so-insignificant
>> degradation in the film's imaging quality!
>
> Exactly, not even mentioning that you can 'push' your 200 ASA film a one or
> two stops and suddenly realize that it's fogged as well.
>
> Since I read different specs in the first place (ranging from 40 to 1000
> ASA) and realize that one is never sure about the intensity used.
> (the x-ray machines in Katmandu were still guaranteed to toast any film,
> even 100 ASA with normal development not so long ago)
>
> I would recommend anybody to either pack their films in a protective bag or
> refuse to let them go through an x-ray machine altogether.
> (probably no option after 9-11)

If you're asking nicely, I can't imagine they will refuse to check the bag
manually...

-Laurent.

-- 
=====================================================================
Laurent Daudelin              Developer, Multifamily, ESO, Fannie Mae
mailto:Laurent_Daudelin_at_fanniemae.com             Washington, DC, USA
********************** Usual disclaimers apply **********************
creationism n.: The (false) belief that large, innovative software designs
can be completely specified in advance and then painlessly magicked out of
the void by the normal efforts of a team of normally talented programmers.
In fact, experience has shown repeatedly that good designs arise only from
evolutionary, exploratory interaction between one (or at most a small
handful of) exceptionally able designer(s) and an active user population --
and that the first try at a big new idea is always wrong. Unfortunately,
because these truths don't fit the planning models beloved of management,
they are generally ignored. 

-- Read the List FAQ/Etiquette: http://www.newtontalk.net/faq.html Read the Newton FAQ: http://www.guns-media.com/mirrors/newton/faq/ This is the NewtonTalk mailing list - http://www.newtontalk.net



This archive was generated by hypermail 2.1.2 : Sun May 05 2002 - 14:03:11 EDT