And just how do you think common fax paper is made?:-)
>
>As I understand, the process began to supplant cyanotype in the 1920's.
>Too bad the machines aren't more useful for our purposes (don't know if
>you can recover the light) because there are lots of them around.
>"Ozalid" is a common manufacturer.
About 20 years ago a studio gave me an old "proofer" that consisted of a
glass cylinder in which there were several "blacklights". The cylinder
rotated on bearings and the force required to make it do that came from
belts that carried your negs and then commonly available Kodak POP paper. I
tried it, but the belts were worn out and as the film/paper (I was using
Pt/Pd paper myself) was going around it the contact between them was not
very good. The prints were always very soft.
If you run into such a unit make sure the price is "right" (i.e., gratis)
before you acquire it.
Luis Nadeau
awef6t@mi.net
nadeaul@nbnet.nb.ca
Fredericton New Brunswick, Canada