DTR on PP400 with EFKE 25

This is an excellent result. It might not look pretty, but it shows near perfect DTR onto the 20x24 PP400 material using the EFKE 25.  As you can see where I wrote "OK" there is a small margin where the image is good. That's where the reagent was thick enough. Where it was too thin, an incomplete DTR reaction took place. However, zoom in on the sepia toned portions, and see how the thinness of the reagent restricted the lateral diffusion, or point spread function (PSF) producing quite a sharp positive.

Even so, the thicker reagent portions are still plenty sharp.  That same margin on the corresponding negative also showed a good density, perhaps a little too high, but good enough for this experiment.

There it is at the top. Notice that the negative also developed outside of the border, proving that a negative can be developed without contact with the receiver material (again).

Below that is a negative produced by a spread on some Kodak premium glossy inkjet paper, which fell apart and produced a texture that you can see if you zoom in. You can also see some very good spots where the reagent spread is near the "right" thickness.

Look at how sharp this stuff is!

Thanks to 20X24 for supplying some receiver material for this experiment. There is no doubt that the PP400 receiver surface could be used for New55, if the stock it was on could be made thinner. Right now it is very appropriately thick, just right for a 20X24 print, but twice as thick as what we'd want for 4x5.