I don't know how these plates are processed but you can make rather
full-range images w/these plates. Strange Ross of this list sent a set
of samples around the world of his experiments and they were most
interesting in the depth of tonal detail. Galina is correct in saying
thery're contrasty but youmight wish to check out Strange Ross' www page
(use a search engine), or, perhaps he is reading this and will reply to
us.
Jack