Re: [APML] Expired films

["Kevin Wigell" <kwemail@twcny.rr.com>]

Pere, the limiting factor on film that has been properly stored is degradation from cosmic ray hits. There is no way I know of (other than burying the film a few miles underground) to protect it from cosmic rays.

Kevin Wigell

----- Original Message ----- 
From: "Pere Sanz Cases" <peresanz@salbus.es>
To: <Astro-Photo@seds.org>
Sent: Monday, May 10, 2004 11:16
Subject: [APML] Expired films


> 
> Hi there,
> 
>   I have some Kodak Supra 400 rolls (the former emulsion) in the fridge 
> which expired last month. Should I throw them away, or can I still use 
> them with confidence? How accurate is the expiration date of a film?
> 
> Thanks for helping!
> 
> Cheers,
> 
> Pere Sanz

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