Infrared film in the freezer

[PeteScherm@xxxxxxx]

Siri has brought up the point about warming the film container before 
opening, to avoid condensation.  This is fine, if you can load the 150 feet 
of film in one sitting.  Most people would, I believe, put the unused film 
back in the canister.  While I was living in the tropics, most people I knew 
who were bulk-loading (35mm) were having water-spot problems from the very 
humid air that was entrained in the canister/jar/can holding the bulk-loader 
or film canister.  This caused condensation once the container was cooled 
below of dewpoint.  Most of us used silica-gel or activated charcoal packets 
in the container - I used to purge the air, in addition, with whatever 
cylinder gas I had available at the time.  I know, I know - engineers tend to 
over-kill the problem.  By the way, the Kodak recommendation against freezing 
their Portra-series film (whatever that is) is, I believe, in their printed 
literature and not just a word-of-mouth opinion.

Pete Schermerhorn
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