Re: [photo-3d] Vision Redux

[Brian Reynolds <reynolds@xxxxxxxxx>]

John A. Rupkalvis wrote:
> Light is the worst enemy.  But, temperature, humidity (or even lack
> of it; a film can dry out cracking the base), and exposure to
> chemical vapors can affect it.  Some of the plastic sleeves designed
> to protect films actually emit chemical vapors that accelerate
> fading!  I have been told that the old style translucent plasticine
> sleeves were safer than the newer transparent ones, but I don't know
> that for sure.  Maybe someone has some input on this.
> 

One of the problems with "plastic" is that several very different
materials are all generically called "plastic".  I seem to recall that
it was the older storage sleeves that were a problem.  The
polyethylene sleeves I am using are (currently) considered safe for
long term storage.  Polypropylene is also considered safe.  PVCs are
not safe.

I buy my supplies at Light Impressions
<URL:http://www.lightimpressionsdirect.com/>, but there are other
vendors who sell supplies for archival storage.

Richard Knoppow, Mike Gudzinowicz and Dr. Doug Nishimura (of IPI) have
posted a lot in rec.photo.darkroom about photo processing and
preservation.  A search of dejanews (especially since this past
September) should turn up a lot of useful information.

-- 
Brian Reynolds                  | "Dee Dee!  Don't touch that button!"
reynolds@xxxxxxxxx              | "Oooh!"
http://www.panix.com/~reynolds  |    -- Dexter and Dee Dee
NAR# 54438                      |       "Dexter's Laboratory"