>Blue paper persons
>
>Luis said that he doubted that 'fun paper that turned blue in sunlight was
>cyanotype.He thought that it eas more likely to be diazo.
>
>The description of a fun paper sounds more likely to be associated with
>something simple and cheap and safe.
There is nothing simpler, cheaper and safer than this type of diazo paper.
There is no processing involved. Just expose in a platemaker. That's it.
If the "fun paper that turns blue in sunlight" requires wet processing it
is a cyanotype. If there is no treatment at all after exposure it is diazo.
Laura, what was it?
Luis