>I used to filter off these growths too, but I was getting some
>unpredictable results. Often I would get a print with blue shadows and mid
>tones but with "pink" highlights, which was not unattractive on some
>images!
Are you referring to the pinkish magenta tones? I am under the impression
that they are caused not by molds, but by prolonged drying process or
exposing not thoroughly dry emulsion.
>Cyanotype is, after all,
>supposed to be the easiest and cheapest of the "alternative processes" yet
>sometimes I find that it can be incredibly frustrating!
>
Amen.
Sam