Gold toning Cuprotype


Jim Patterson,
 

Hi All,
A while ago I did 2 small experiments with Clerc’s Gold Toner on Cuprotypes. Toning at the CuSCN stage (just after the Thiocyanate/citric acid developer) I got a very fogged neutral gray image.

On a Se/S toned Cuprotype (toned at the CuSCN stage) I got a sharp neutral gray image, with minimal highlight fog.

Perhaps Mike Ware has some thoughts or remedy for the fogging.
Jim

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