From: Darlington Media Group (postmaster@mediaworkshop.demon.co.uk)
Date: 12/23/00-02:33:01 PM Z
Hi David,
Nze is probably right to point out that some papers react differently to
dichromate than others, however I think your problem lies in the amount of
a.d. that you have added to the sensitiser.
A 5% 'hit' of a.d. in 12 drops of sensitiser is rather too large. Yes, it
may be the amount required to give you the necessary contrast but if this
is the case, then your negative is not suitable.
As you have probably gathered, it is areas of continuous tone such as the
sky, that show up this mottling effect. You might have got away with it if
your negative was contained all detail, with little or no continuous tone.
So what are your options? Well....you could give up on this particular
negative or maybe try one drop of 1% a.d. and live with a print that has
less contrast. Carl has a wonderful term for a determination to match the
contrast of a silver gelatin print... he calls it silver envy!
You could try substituting some of the LiPd for platinum which will give a
small lift to the contrast or you may wish to switch to develop out
platinum printing, using ferric oxalte and a cold toned developer based
upon potassium oxalate and potassium orthophosphate.
Let us know how you get on.
Cheers ....Tony McLean
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