>
>
> On Mon, 24 Feb 1997, Ronald Connelly wrote:
> > However, even if my negative isn't quite right, shouldn't I be getting
> > more steps to expose through the step tablet?
>
> Ron, my experience of cyanotype is that the paper is a major major
> variable. Some will NOT do more than 6 or 7 steps without going into
> reciprocity failure. If you can get hold of a sheet of Whatman Fine
> Print, that's a VERY long scale cyanotype paper, and if that doesn't give
> you 12 to 15 steps, there may be a problem with the sun up there in
> Seattle. I don't remember if you said which Arches paper you were using,
> but my list of "Short scale papers for cyanotype" includes Arches
> heavyweight and arches 90 lb watercolor.
>
Judy,
Could you share this list of suitable (or not so suitable) papers for long
scale cyanotype?
Thanks in advance,
Cor Breukel
http://ruly70.medfac.leidenuniv.nl/~cor/cor.html
"The Infrared Gallery"
http://ruly70.medfac.leidenuniv.nl/~cor/ir-gallery.html