Selenium Toning for Van Dyke brown and Kallitype print

Selenium toning  for Van Dyke  and Kallitype prints Selenium toning gives a consistent tone variation. The cyanotypes range from brown to red-brown. For the Van Dyke prints, the selenium toner tends to turn them to a pleasant chocolate-tone. If you extend the duration of the immersion you can obtain yellow-brown tones. The toner formula is […]