Radiating Reels

[pbadcock@xxxxxxxxxxxxxxx]

on 10th June, someone wrote to the list:


>from what i was told by kodak, the plastic reel absorbs the ir when it
>is just hanging out in the daylight.  then when you load your film onto
>it the ir radiates to your film.

This rather suprised me!  I can think of only three mechanisms which 
would cause a piece of plastic to EMIT radiation capable of fogging IR 
film, none of which I could see neither applying nor effecting the 
processing of IR film under normal conditions.

i) the plastic was radioactive
ii) the plastic was physically very hot, ie a couple of hundred degrees 
and most likely not in a rigid enough state to roll any film on!
iii) the plastic was fluorescing(I think that's how it's spelt).

the final option probably being the closest to a reasonable explanation.
I'd be interested to find out from Kodak more about this phenomenon.

regards

Peter B.

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