You develop and steady the image with tap water without a darkroom and chemicals.
Learning through play.
Light-sensitive solar photo paper for "solar photography":
you put different objects on the paper (e.g. leaves, flowers, small objects, if they are partially transparent you get nice effects) and simply put it in the sun. After a short exposure of a few minutes, the laid objects leave a light trail - a contour - and the result is a beautiful photogram.
You develop and steady the image with tap water without a darkroom or chemicals. This process is called cyanotype and was at the birth of photography. The invention uses the light sensitivity of iron salt and was also used in the past as one of the first methods of copying.
The light-sensitive emulsion is applied to recycled paper and is non-toxic - even small children can play with the paper.
The paper is light-sensitive, i.e. it is wrapped light-tight.
The author of the photographs "Queen" and "Dwarf" is Dustman. Photographed by Flexaret Va, Ilford Delta 3200. Illuminated approx. 5min with UV flashlight.
Data sheet
Specific References