Re: [APML] Black Negs a new developement

["Brian Sledz" <brianhome@email.msn.com>]

Hi Chris,
I didn't think it was moisture.  Thanks Chris
----- Original Message -----
From: "Chris & Jennifer Cook" <ccjd@ix.netcom.com>
To: <astro-photo@seds.org>
Sent: Tuesday, December 11, 2001 12:36 AM
Subject: Re: [APML] Black Negs a new developement


> This is definitely a mystery.
> I can tell you that before I moved to Southern CA, I lived in Rockford, IL
> which is outside of Chicago(not the best place for film astrophotography).
> When I was first getting into AP back there and did not know about N2
> purging, I use to shoot hypered TP in 80-90% humidity and never got black
> film.  It was very dark grey at times but never black.  I'm 99% sure
> moisture is not the problem in Brian's case.
>
> Chris
>
>
> ==================
> Chris Cook
> Astronomical Photography
> www.abmedia.com/astro
>
> -----Original Message-----
> From: Matt BenDaniel <matt@starmatt.com>
> To: astro-photo@seds.org <astro-photo@seds.org>
> Date: Monday, December 10, 2001 10:14 PM
> Subject: Re: [APML] Black Negs a new developement
>
>
> >Brian,
> >
> >I've emailed you separately re: how Scott Justis uses plastic bags and
> desiccant to fight off humidity. Rajiv Gupta uses a similar method.
> >
> >However, dry air purging is relatively easy. That's what I do. See:
> >http://home.att.net/~hermperez/dry_air_purge_setup.htm
> >--
> >Matt BenDaniel
> >http://starmatt.com
> >
> >
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