Digital BW, The Print

Sistan wasn't a wash aid like HCA, but rather a means to convert free silver 
ions, the same as a toner would do, so there wouldn't be a point to using 
both Sistan and selenium toner on the same print. We used to offer Sistan 
toning in my old lab and I still have a case of the concentrate in bottles, 
but I was never totally sure if it was marketing hype or a really good 
product because all I had was Agfa's promotional material and never saw an 
independent study.

-----Original Message----- 
From: jcphoto52
Sent: Tuesday, April 23, 2013 5:29 PM
To: DigitalBlackandWhiteThePrint@yahoogroups.com
Subject: [Digital BW] Re: Digital Silver Gelatin Print light fastness 
results

Hi

Sistan was a great alternative to HCA (Hypo Clearing Agent) as it was done 
in one step and if one followed a good archival technique (two fixers, 
double wash) the results where pretty impressive. Added to that, you could 
still use selenium toning after the complete treatment to improve the 
archival quality. I did a lot of selenium, a lot of Sistan but not both.

Cheers

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "John Castronovo" 
<jc@...> wrote:

> On another note, did you ever hear of a neutral toner which was made by 
> Agfa
> called Sistan? Supposedly it did the same job as selenium toner in that it
> stabilized the free silver ions left in the emulsion after processing but 
> it
> didn't change the color of the print.
>
>



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