Re: Mike Ware's POP Pt./Pd. Pt
Title: Re: Mike Ware's POP Pt./Pd. Pt
One caveat I should have mentioned is printing speed. In my initial tests I am finding a loss of about two stops with FAO and Ammonium Tetrachloropalladate (II) compared to FO and sodium palladium chloride. With the latter I can print a digital negative on Pictorico in about 100 units/seconds, while with the POP process the same negative needs about 400 units/seconds.
Hopefully I will find some way to change this scenario, because there clearly seem to be some advantages with the use of FAO.
At 8:22 PM -0500 11/8/06, Sandy King wrote:
I finally received some ferric ammonium oxalate today and was able to do a few tests with Mike Ware's POP Pt./Pd. process. The results were very encouraging. The Dmax I was able to get with the sensitizer of FAO + Ammonium Tetrachloropalladate (II), on the first try, was definitely better than I have been able to get with palladium printing using FO in my working conditions. I am working in a room with about 60% RH, which gives a sepia color print with straight palladium. I am also exposing by time, not visual inspection.