> No problem with coating chemistry for a cyanotype on a b/w image. or,
> for that matter, on a color image. I leave a spot in the center that has
> been covered with an opaque material so as to leave the area clear, or
> one could also bleach selectively and apply the cyan material. Hmm, new
> thoughts ....could print in b/w and also have a large prepared neg and
> then selectively bleach b/w print, coat w/cyanotype chemistry and place
> neg carefully on print therby creating a sort of cyano-b/w-type combo.
> Jack
>
Another possibility, which I have done with blue toner tho not with
cyanotype, but ought to work, would be to bleach the silver print back to
the silver halide (with a ferricyanide or copper sulfate and bromide or
chloride bleach), coat with the cyanotype emulsion (which won't destroy
the halide), expose, develop in water, then redevlop the halide in an acid
developer. (Tho I'm not sure why one would *want* to do this....)
Judy