Kelp carbon print by Jim Patterson

Kelp carbon process – A direct positive carbon photographic process

Kelp carbon is not for the beginner. The kelp carbon process is a direct positive carbon photographic process. Jim Patterson shares his process. Writer and photography / Jim Patterson In short: Sodium alginate (from kelp) is the Colloid and Ferric (iron iii) Oxalate is the Sensitizer. The image is pigment bound to a support in the hardened (insoluble) colloid. What … Read more