Try reading an article by Bob Herbst in the July/August 1999 issue of View
Camera Magazine titled
"The Effects of Pyro Staining in Platinum Printing". His systematic evaluation
may be of help.
___________________________________________________
Don Bryant wrote:
> > someone can help me to read densities on a film wich is pyro developed
> > with a densitometer?
> > Wich filter or status.
>
> Use the BLUE channel to measure stain density or to determine highlight
> density.
>
> Use the RED channel to measure density due to the silver non-stain image
> density.
>
> You use the same status filters used for color negative readings which if I
> recall properly is status A, but I may be incorrect about this.
>
> Don Bryant
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