U of S | Mailing List Archive | alt-photo-process-l | Re: Ferric Oxalate or Ferric Ammonium Oxalate

Re: Ferric Oxalate or Ferric Ammonium Oxalate

Hello Witho,
I would be most grateful if you would post your procedures with AFO, give your web address and also say what change of colour AFO produces.
All good wishes,
----- Original Message ----- From: "Witho Worms" <info@witho.nl>
To: <alt-photo-process-l@usask.ca>
Sent: Friday, November 03, 2006 1:42 AM
Subject: RE: Ferric Oxalate or Ferric Ammonium Oxalate

Hello Sandy and Eric,

Most of my prints are made with AFO. Look at my website. It is very easy to
use both at the same time. I can give my procedures if you want. I use AFO
because of print colour. If contrast is the most important issue I might
choose to use the FO formula with Pt6.



-----Oorspronkelijk bericht-----
Van: Sandy King [mailto:sanking@clemson.edu]
Verzonden: vrijdag 3 november 2006 2:06
Aan: alt-photo-process-l@usask.ca
Onderwerp: RE: Ferric Oxalate or Ferric Ammonium Oxalate


Wonder why that would be?

I have a very nice Ziatype print that Loris Medici gave me and it is
sharp as a tack.

Sandy King

At 6:27 PM -0600 11/2/06, Eric Neilsen wrote:
Sandy, Yes the AFO is indeed a much better defined chemical than the FO,
which can vary all over the place. POP pt/pd prints can most certainly be
made. One thing that I seemed to see in prints made from negs that print
well with FO when using AFO, are prints that look a little hazy. That might
be OK, if you were making prints of foggy or moody scenes but for crisp
images, not so hot. It may also be a paper pH issue, where what works for
will react differently for AFO prints. It does have a shelf life after
mixing but last at least as long as FO if not twice as long.

Eric Neilsen Photography
4101 Commerce Street
Suite 9
Dallas, TX 75226
Skype ejprinter
 -----Original Message-----
 From: Sandy King [mailto:sanking@clemson.edu]
 Sent: Thursday, November 02, 2006 5:58 PM
 To: alt-photo-process-l@usask.ca
 Subject: Ferric Oxalate or Ferric Ammonium Oxalate

 After looking at some very beautiful prints made by Loris Medici
 using FAO I am evaluating the prospect of shifting from FO to FAO. A
 recent major lack of inconsistency in results from batches of of FO
 motivates in part this interest. Mike Ware recommends FAO, noting
 that FO is a very ill-defined substance.

 Just wondering what some of the other Pt./Pd. printers on this list
 think, pros and cons FO versus FAO?

 Sandy King