From this year’s Kensington Kinetic Sculpture Derby: Erik and Hedy of Frank’s Kitchens. Gold-toned kallitype on Arches 140# HP.

Another aspect of my experimentation during PrintFest was control over the toning characteristics of reused gold toner. Straight gold toner (gold chloride and citric acid) form a good, but not great, toner that can tone prints purple if used in sufficient concentration. Lower concentrations tend toward a cold black. But the toner has a short shelf life once …[more]