Re: Dichromate dilution and speed

Dave Rose wrote:
>
> All other things being equal, less dichromate in the mix will produce a
> slower emulsion, a shorter scale, and higher contrast. Any experienced gum
> printer should know that.
>

Of course. But since we're all so polite here, one can't say "that's
nonsense!" when someone says something that seems to contradict one of
these truths, so I thought it better to provide actual data. I do have
to admit that although I certainly knew from reading (not from
experience because I never vary my dichromate concentration in practice)
that less dichromate makes more contrast, I was surprised at how marked
the difference was. Cheers,
kt
Received on Sun Nov 30 21:39:00 2003