htmlguru here on apug has tried
to duplicate making autochromes.
perhaps you can contact him ( or he will post in this thread ? )
to learn how he might have processed HIS
or ask him for advice.
from what i remember he was close,
but still had hurdles to overcome.
good luck!
john
I think this thread from 2005 is what you may be referring to
(there was a url link here which no longer exists)
Twelve pages of good potential stuff, but appeared to die a death.
I suspect that it may well have been down to lack of time.
Sometimes in a Research and development situation the art is deciding when to call it a day, and stop flogging a dead horse
I'm considering using an acetate sheet, a laser printer, and emulsion in a can, or fine polyethylene powder masterbatch in three colours, but its purely at the thought experiment point at the moment.
I think I'll continue this over in Alt-process