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 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