[pure-silver] Re: Ansco 221 Observations & Questions

I use that formula 1:4

--- Craig Schroeder <craig@xxxxxxxxxxxxxxxxxx> wrote:

> I'm finally running out of a large supply of Heico
> and Kodak HCA that I 
> had acquired and had been looking for home-mix HCA
> formulas.  I looked 
> just now on the archives and didn't easily find the
> background info 
> mentioned on the formula below.  What dilution are
> you using this at?  
> Thanks.
> 
> Eric Nelson wrote:
> > Thanks for the info Richard.
> > I forgot to mention the hypo clear step and 1 hour
> > wash in my procedure before toning.  
> > BTW I found that the hypo clear formula discussed
> here
> > at length does have a pH of 7 at working dilution
> as I
> > tested it recently using filtered Chicago tap
> water.
> > I use:
> > Stock Solution
> > Sodium Sulfite, dessicated             100.0 grams
> > Sodium bisulfite (or metabisufite)    20.0 grams
> > Sodium Citrate                                 
> 5.0
> > grams
> > EDTA Tetra Sodium Salt                     5.0
> grams
> > Water to make 1 liter
> >
> > When you say "completely bleach the image" do you
> mean
> > there shouldn't be any image left?  Typically deep
> > blacks here remain quite visible after bleaching.
> >
> > Eric
> >   
> 
>
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