Other Alt Processes
The cyanotype, VanDyke brown, and platinum/palladium (Pt/Pd) printing processes involve coating paper with a light-sensitive emulsion and exposing it to ultraviolet light under a negative to make an image. Bromoil prints start out as traditional silver gelatin prints, but the silver part of the image is bleached away and later replaced with ink, which is applied by hand with a stiff brush.