[pure-silver] Re: Image Permanence

["Richard Knoppow" <dickburk@xxxxxxxxxxxxx>]

----- Original Message ----- 
From: "rob c" <spam@xxxxxxxxxxxxxxxxxxxx>
To: <pure-silver@xxxxxxxxxxxxx>
Sent: Wednesday, July 06, 2005 3:42 PM
Subject: [pure-silver] Image Permanence


> I recently revisted a site that has good content and found 
> a new posting on image permanence which others may find 
> interesting.
>
> http://www.largeformatphotography.info/toning-permanence.html
>
> rob champagne
 Another brief comment. The above includes the paper by 
Lee, Wood, and Drago, which I have courtesy of Dr. Nishmura. 
In it the authors mention that even when Selenium toning was 
used that the resistance of the iamges to oxidation was 
greater when a small residue of Hypo was left in the 
emulsion. I asked Dr. Nishimura about this and he said IPI 
was aware of it and that it was not a factor in the failure 
of current KRST to provide image protection.

---
Richard Knoppow
Los Angeles, CA, USA
dickburk@xxxxxxxxxxxxx 

=============================================================================================================
To unsubscribe from this list, go to www.freelists.org and logon to your 
account (the same e-mail address and password you set-up when you subscribed,) 
and unsubscribe from there.

• References:
  • [pure-silver] Image Permanence
    • From: rob c

Other related posts:

[pure-silver] Image Permanence

[pure-silver] Re: Image Permanence

[pure-silver] Re: Image Permanence