I tried gum bichromate a few years ago but gave it up because potassium dichromate is quite toxic. Hazardous chemicals just don't fit...

Imagine printing a photograph using nothing but flower petals, berries, or spinach leaves – and sunlight. This isn’t fantasy; it’s the...

Anthotypes are images created by coating paper with plant-based dyes and then using sunlight to bleach the pigment where it’s exposed​....