People who bought this item also bought: Customer Reviews
A great introduction to early photographic methods Blueprints (also called cyanotypes) have been around since 1842. You can use photoshop to make a negative of an image, print it on acetate and then tape a piece of this paper to it and expose it in the sun for a few minutes. Develop as usual, but add a splash of hydrogen peroxide and watch the blue darken to deep navy. A facinating process that actually creates the permanent dye prussian blue. Keith Anderson
it's magic! So simple ! You need to play around to avoid over or under exposure but great fun.
