Re: [APML] Hypered film

["ashtoreth" <ashtoreth@ashtoreth.com>]

----- Original Message -----
From: "Matt BenDaniel" <matt@starmatt.com>
To: <astro-photo@seds.org>
Sent: Tuesday, January 08, 2002 9:15 PM
Subject: Re: [APML] Hypered film


> > Although I don't think I've progressed far enough to begin using hypered
> > films I have the following question.  If you purchase
> > hypered film from a dealer such as Lumicon can you store the film and if
> > so how and for how long?
>
> Scott,
>
> I'm not a hypered film expert, but...
>
> Hypered Tech Pan apparently can keep in the freezer for years if
> properly sealed.
>
> Hypered color film can last about a month in the freezer if properly
> sealed.
>
> If you happen to have a vacuum chamber, hypered film can be stored in it
> for a while.
>
> For some reason, packing hypered film with desiccant and keeping it at
> room temperature is not supposed to be as good as keeping it in the
> freezer, but no one ever satisfactorily explained to me why that is the
> case, because as I understand it, it is moisture that is the concern.
> --

Its because at the temperature of a freezer (the colder the better, btw),
the moisture is frozen out of the air. Its the water vapour that, over time,
'un-hypers' the film.

> Matt BenDaniel
> http://starmatt.com
>
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