From the ever excellent BibliOdissey:
While it's technically true to categorize the cyanotype (blueprint or photogram) as a form of photography, it seems to straddle the fence with printmaking although this may just be semantics.In 1841 or so, Sir John Herschel disovered the sensitivity to light of a particular iron solution. When this chemical is dissolved in water, it can be applied to a surface such as paper and an object is placed on top and during exposure to uv light, the background goes blue ('Prussian blue') and a negative image of the object remains. Simple and cheap and still practised today by artists and school children.
More info and prints here.
Pk, as usual, putting my blog to shame...
0 comments:
Post a Comment