[pure-silver] Re: Combination Toner Test

Hello Richard,

    What I use is a little bite different but it is supposed to react more
or less like the old polytoner. I use it very diluted.

    Viradon                         1ml
    Sélénium Maco                   2ml
    Sodium carbonate 10% solution   35ml
    Water                           1000ml

    I put the print in the solution for 5 to 10 sec and then run hot water
at 45°C on it for 2 to 3mn and then in 10% sultite solution for 2 mn.
    I use this mainly with Bergger CV CB a warm tone paper and I get very
nice cooler slightly blue blacks and subtle slightly yellowish hightlight. I
did not get colored borders as mentionned earlier with very diluted
polysulphure toners

        Daniel

> De : "Richard Knoppow" <dickburk@xxxxxxxxxxxxx>
> Répondre à : pure-silver@xxxxxxxxxxxxx
> Date : Sat, 30 Jul 2005 01:55:01 -0700
> À : "Pure-Silver Free" <pure-silver@xxxxxxxxxxxxx>
> Objet : [pure-silver] Combination Toner Test
> 
> Some time ago I posted a formula for a combination toner
> supposed to be similar to the late, lamented, Kodak
> Polytoner. At that time one of the members of this list
> reported trying this and that it didn't work. I mixed some
> tonight and had success in toning a couple of different
> kinds of paper. On possibility is that the other person used
> new KRST and new KBT, my test was made with freshly bought
> KBT but my KRST was bought in bulk about ten years ago.
> Here is the formula I used:
> 
> Combination Selenium and Polysulfide Toner
> 
> Water                    500.0 ml
> Kodak Brown Toner        320.0 ml
> Kodak Selenium Toner      80.0 ml
> Sodium Carbonate         160.0 ml
> Water to make              1.0 liter
> 
> Dilute 1 part stock to 3 parts water for use.
> 
> The hydration of the carbonate was not specified in the
> orginal article with the formula, I used monohydrated
> carbonate because that's what I have.
> This toner works very quickly, a noticable change in color
> appearing in one minute. Full toning appears to take place
> in about three minutes. I extended toning on one print to 7
> minutes but there was no visible change after about 3
> minutes.
> I toned three prints, two on Agfa Multicontrast and one
> print on old Kodak Polycontrast. The Polycontrast print
> toned only a little to a purple color, the Agfa toned
> strongly to a purplish brown. These were normally processed
> RC prints, I soaked each about one minute before toning.
> There was no indicating of staining or other problems.
> BTW, the Kodak Brown Toner was bought from Freestyle
> earlier this week. It was dark brown and so was the toner in
> all the bottles on the shelf. I haven't bought any KBT for
> years, my memory is that the last stuff I got was clear. Has
> anyone else gotten any recently?  Whatever the color the
> stuff seems to work OK.
> The formula above is from:
> _Modern Photography_ Dec, 1953, p.87  Attributed to Kodak.
> 
> I would like to hear from anyone else who tries it.
> BTW, I mixed enough for only 200 ml working solution for the
> test.
> 
> ---
> Richard Knoppow
> Los Angeles, CA, USA
> dickburk@xxxxxxxxxxxxx
> 
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