Well... yes, if you want you can make chrysotype or cyanotype negatives. Just takes a long exposure...
About beating Kodak & Fuji - it's the process of coating your own paper with things mixed from scratch that takes the whole image making experience back.
The one set of cyanotype negatives I've actually seen was done on Pictorico OHP film meant for inkjet printers - the ceramic coating holds sensitiser solution. I'll check on the exposure time. It's really more of an oddity than anything - the cyanotype negative.
So... the cyanotype negs were exposed for two to five hours in camera (a Mamiya w/film holder) - they make interesting transparencies, but are useless to print with - don't block UV light...
So... the cyanotype negs were exposed for two to five hours in camera (a Mamiya w/film holder) - they make interesting transparencies, but are useless to print with - don't block UV light...