Photo solar paper medium, 27.9 x 21.6 cm, 25 sheets

Pupils can use this special paper for one of the oldest photographic printing processes, cyanotype. This allows you to make your own greetings cards, bookmarks or calendar pages. In science lessons, you can use the paper to explain reactions under the influence of light, and in higher-level classes you can even carry out energy analyses following the particle model.

It is ideal for trying out various materials. Plants and their flowers and leaves are particularly suitable. But you can also make fabulous images using thin slices of citrus fruit and onions. Encourage pupils to experiment with transparent and translucent materials. Using sun cream is also very interesting. There is no limit to the imaginative possibilities when experimenting with this photosensitive paper.

Exposure to light: place your chosen objects on the blue side of the paper and expose it to sunlight. In direct sunlight, this exposure will only take about 2 minutes, in shade 30-45 minutes. The surfaces that have been exposed to the light will now be considerably paler. The photosensitive paper reacts to blue to ultraviolet light, which causes it to change colour. The outline of the object placed on top remains clearly visible.

Fixing the image: immerse the paper for approx. 1 minute in cold tap water. The covered areas will now quickly go pale.

Once dry, the image will not fade on exposure to light and can be used however you want.

Caution! This paper will only work for about 6 months. After this time, it won't change colour anymore.

• Take photographs using sunlight
• Create special artworks
• Also works in winter

Dimensions: approx. 27.9 x 21.6 cm

Contents:

• 25 sheets of photo solar paper
• Instructions