Re: chrysotype and 21 steps

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From: Sandy King (sanking@hubcap.clemson.edu)
Date: 11/17/00-08:49:49 AM Z

So the density range needed for a Chrysotype is about 2.25? Can the
process be adjusted to handle negatives of different density range?

BTW, are there any good working instructions on this process posted anywhere?

Sandy King

>Sil, I picked up through the Photographers formulary. Works like a charm. I
>also get around 15 steps.
>
>EJ Neilsen
>
>Sil Horwitz wrote:
>
> > At 2000/11/16 08:20 PM +0100, you wrote:
> > >I will try to find some 33thiopropionic acid to try it as it is truly
> > >different from the way I use.
> >
> > The correct term is: 3,3' thiopropionic acid (or beta, beta'-propionic
> > acid) or 3-mercaptopropionic acid. (Interestingly, the 2-mercapto compound
> > is the substance in onions that causes tears.) If you find a retail source
> > for this substance, let me know, as it is used industrially in resins and I
> > don't know of any other common usage.
> >
> > Sil Horwitz, FPSA
> > Technical Editor, PSA Journal
> > teched@psa-photo.org
> > silh@earthlink.net
> > Visit http://www.psa-photo.org/
> > Personal page: http://home.earthlink.net/~silh/
>
>--
>Eric J. Neilsen
>4101 Commerce Street, Suite #9
>Dallas, TX 75226
>214-827-8301
>http://e.neilsen.home.att.net
>http://www.ericneilsenphotography.com

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