Yes I am a photographer as well, that's how I got started in platinum
printing, by making my own salts - and damn near killing myself in the
process (a story for later). I've tinkered and explored many of the
non-silver processes over the last 30 years. Not that I'm expert in any
of the non-silver processes - in this field, I'm suspect of anyone
claiming to be an expert. The more you know the more you realize you don't
know. If there any questions about platinum printing mayber I can be of help.
Ciao
--Dick