You won't quite get this effect but a fairly thick gelatin coating,
hardened, will help. You'll have to experiment.
Stay away from waxes and varnishes.
>2) I would like to use a photographic process (including recording the image)
>that does not include gelatin at any stage. My guess is this means either
>(a) using a digital camera - which I would rather buy when the price comes down
>(b) some form of Calotype
>Has anyone else tried to do this recently?
Several people are working the calotype process with various degrees of
success.
Luis Nadeau
nadeaul@nbnet.nb.ca
Fredericton, New Brunswick, Canada
http://www.primenet.com/~dbarto/lnadeau.html