Re: [APML] To freeze, or not (Was: The good Supra 400pricereduction...)

[<cschur@cybertrails.com>]

Alan, I have yet to see a cosmic ray hit show up on my old film when
developed.  With a CCD you have a definite streak or dot.  Film may simply
just fog up.  Kodak adds water to film to increase the reciprocity failure
to keep it from self exposing in the cartridge while on the shelf from
THERMAL energy.  Apparently the molecules bouncing about will expose the
film grains.  In the freezer, this of course is greatly slowed to the
point film can last 10  years or more.  Some food for thought.

Chris Schur

> Hi Chris,
>
> --- Chris Schur <cschur@cybertrails.com> wrote:
>> Alan, grain tends to clump in the freezer, so it may appear larger on
>> the final scans.
>
> Couldn't rememeber exactly how to phrase that, thanks.
>
>> However, a slight clumping is acceptable after a few
>> years of storage, than haveing NO red sensitive neg film at all.
>
> At some point though, doesn't the film degrade (due to cosmic ray hits)
> enough to make it un-useable? And is there a way to determine when that
> time will be? How long can we count on the film being OK? A year past
> expiration date, 2 years?
>
>> strongly.  Im still testing Max800, which has a peak in Ha as well,
>> but unlike the e100, the other peaks are a bit larger.
>
> Keep us updated.
>
> Thanks,
> Alan
>
>
>
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