Gary Miller (gmphotos@earthlink.net)
Fri, 21 May 1999 19:28:42 -0700
Here again is a good example of how the same process will be different for
everyone depending on where the work is done. Here in San Francisco, if I
use a 16 + 16 drop mix I can only get 5 or 6 passes with a coating rod on
Crane's platinotype that has been pre-humidified just before coating. Now
this could be my glass rod coating skills or many other factors. None of us
are wrong, but it really brings up the point that everyone must optimize a
system for themselves using some starting points and then empirically
determining what works best in a particular darkroom on a consistent basis.
But I do agree with Carl and Richard that there is a point where there is
just too much solution floating around atop the paper. This is just another
factor.
Gary Miller
----- Original Message -----
From: Darlington Media Group <postmaster@mediaworkshop.demon.co.uk>
To: <alt-photo-process-l@skyway.usask.ca>
Sent: Friday, May 21, 1999 1:29 PM
Subject: Re: Modified Zia Formula
> Hi,
>
> The method I use for Zia's with Platine is to coat the paper and let it
dry
> naturally for about 15 minutes in the darkroom, where the ambient humidity
> is about 70% (pretty standard over here in the U.K) The paper is deemed
> ready when the surface is dry and a reservoir of moisture can still be
felt
> on the reverse side.
>
> Whilst making some Zia's last weekend I used a generous 16 drops each of
> FAO and LiPd for an 8x10. I noticed immediateley that this was too much
for
> a rod coated print,ten passes of the rod instead of my usual five, but the
> emulsion did soak in eventually!
>
> The fascinating thing was that the two prints that I made this way, both
> showed heavy solarisation of the black borders. Matters returned to normal
> when I reduced the drop count to 12 drops each (24 drops in total).
Perhaps
> less is more. ;-)
>
> Incidentally, I have still not got around to trying Jefferey's Pd rich
> formula, though I have made up a batch of sensitiser to his formula. I
will
> do soon!
>
> Regards ....... Tony McLean.
>
>
>
This archive was generated by hypermail 2.0b3 on Thu Oct 28 1999 - 21:39:34