Over the last few days I have been testing the difference between Dye based ink jet digital negatives (Epson 1290) and Pigment based digital negatives (Epson 3800) when printing with platinum/palladium.
The above shows the two prints side by side, the print on the left I used a pigment based inks to create the negative, dye based on the right.(click on the print to see larger version) The difference is quite obvious and I would be interested to hear which print people prefer.
My initial findings show that the dye based negative seems to be blocking a lot more UV light than the pigment based negative and resulting in a significantly more contrasty print. The print has more ‘punch’ to it. I like it, as it has a certain luminosity to it, however I am not arriving at the print I expected when I finished editing the negative in PS.
The pigment based negatives on the other hand gives a good rendition of what I see in P.S but lacks the luminosity of the dye based negative print. I need to find some half way point between the two prints and believe I have two options to achieve this.
Either adjust the curve in PS for the pigment based negative or try and boost contrast through the platinum/palladium chemistry (i.e more drops of ferric oxalate #2) I prefer the former option to the later as this will add more grain to the final print. I will try both options and post the result.