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.
- Nickel with variations can Produce red to violet toned prints
- Vanadium Produces green tones of a permanent nature.
- Uranium yields brown to reddish tones it intensifies the image and the results may prove impermanent.
- Mercury produces a range of tones from rich warm brown through to black brown.
- 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.
- Copper yields tones from warm brown to light red
- Lead In lead toning the image is converted into yellow lead chromate
Cobalt gives green tones
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