ABSTRACT
Historically considered the premier, treasured, hand-coated emulsions among photographers, platinum and the closely related palladium are two of the tonally richest and most permanent emulsions available. Depending on the paper and processing procedures used, the more expensive platinum can yield cool velvety blacks, while palladium renders warmer blacks and sepia browns. Although both processes are probably the most costly covered in this book, they can be combined with each other as well as with gum bichromate (Chapter 8), cyanotype (Chapter 6), and other techniques.
