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

RE: Ferric Oxalate or Ferric Ammonium Oxalate

Hi Witho,

I have definitely decided to give AFO a try and your work is superb so please post working procedures here if no problem.

I have a couple of your prints handing in my house and the beautiful tonalities you get are just outstanding.



At 2:42 AM +0100 11/3/06, Witho Worms wrote:
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