This is the print with a 5-minute platinum tone. The exposure was 4 minutes (overcast sky) and 8 minutes of developing time. As you can see, I used 12 drops of 20% Ferric Oxalate, 12 drops of AgNO3, and 2 drops of Tween. The platinum toner I used was 10 drops of 20% platinum, 10 g citric acid, and 1000 m DH2O.
I wanted to see what some of my negatives look like printed out with the Kallitype process. If you make Platinum Palladium prints, Kallitypes are easy.
Rather than using platinum and palladium salts, you use silver nitrate. The ferric oxalate is the base and the silver nitrate is the compound that is reduced to silver.
I love the red color, I wish I could keep it in that stage. Some of my next experiments will be doing a gum over with the red oxide pigment. I could do a gum over Kallitype here - maybe I will. I’m still knee-deep in the dry plate experiments and want to continue with that before Spring gets here. I hope to be ready to get on the road in May.