> I've just returned home from an interesting and informative visit to Dr
> Perera where I was able to talk with him extensively and see his work.
> . . . .
> I gained the impression that there are no real secrets - all the necessary
> information has been published, and that it is more a matter of working at
> getting the techniques right rather than any special tricks. There is a
Peter,
Could you please provide the source and/or reference that has been
published on a functional diazo sensitizer for carbon printing as well as
the specifics of the Fresson process? You might start by looking on the
same shelf that holds the seven books of Thermo Hydro-diazochromic Dye
Diffusion Polychromatic Transfer Printing, commonly known as THDDDPT
Printing.
I gained the impression that you may have a need for another set of
encyclopedias or how about a few more books on photography to hold open
any door of your chosing?
Sincerely, Art
Art Chakalis
Columbus, Ohio, USA