Re: (Fwd) Re: EOS: Light comming into A2E

[Greg Pease <gpp@xxxxxxxxx>]

>> i'm not positive about the HIR but the HIE is so sensitive that it cannot 
>> be kept in a plastic bulk loader.  the plastic is not ir safe.  ir easily 
>> transmits through many types of plastic.
>
>This claim is regularly made on this mailing list, and I've yet to see any
>real proof.  In fact, there seems to be a fair number of conflicting
>reports on this topic.  Have you personally tested your claim?
>
>Don't get me wrong, I'm not trying to put you or anyone else on the list
>down so please don't take this personally.  It just seems that we
>regularly get this warning about plastic being transparent to IR without
>much to backup the assertion.  What I find especially interesting in this
>case, is that the original poster had identified the light source (red
>LED) that was fogging his film, yet we are again warned about plastic
>being unsafe. 
>
>It seems that what we as a group need to do is to identify those types of
>plastic that are not IR safe.  Then simply avoid products made with these. 
>Anyone got an IR sprectrophotometer out there?
>
>- Wayde Allen
>  (allen@xxxxxxxxxxxxxxxx)


the only experience i have with plastic is using a plastic reel to 
process my first roll.  the sprocket hole area and part of the image area 
of the film was (ever so slightly) fogged from where the plastic reel 
touched the film.  after i saw the problem, i saw kodak's warning on the 
data sheet.  however i just got a test roll back from the lab.  this roll 
was also processed on a plastic reel and shows no such fogging.  hmmm.
- -greg
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