Metallic toning of B&W photographs
Other Metallic toners
There is a range of other metallic toner recipes that produce an equally
wide range of tones and colourations. The permanence and stability of these
relates to the nature of the base metal.
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Nickel with variations can Produce red to violet toned prints
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Vanadium Produces green tones of a permanent nature.
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Uranium yields brown to reddish tones it intensifies the image and
the results may prove impermanent.
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Mercury produces a range of tones from rich warm brown through to
black brown.
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Ferric (iron) These toner convert the silver image into a
brilliant prussian blue ferro-ferriccyanide compound They tend to intensify
the image and increase density.
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Copper yields tones from warm brown to light red
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Lead In lead toning the image is converted into yellow
lead chromate
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Cobalt gives green tones
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