Chiba system

Has anyone on this site tried the Halvor Bjoerngaard's Chiba System (non toxic alternative to gum and carbon print) and if so how does it results compare to regular gum prints and carbon prints?

Dominik

I'm sorry, but I can't help yet, but I just wanted to thank you for bring this to my attention. I'm always nervous when I use dichromate processes, for the health reasons. So once I run out of it, probably within the next month, I'll start experimenting with this.

Did you try yet?

I have, but I don't feel like I experimented with it enough to fairly comment on it. But I did notice the colors are truer to the actual watercolor pigments than gum prints, probably from the dichromate stain and unbleached gum I was using. I experimented with the direct gelatin variation. I made a glop more concentrated than I need (6-12% gel) and then I melt it, and dilute/mix (a portion at a time) with a AFC solution and coat it before it sets. Then expose it, and presoak it in a H2O2 solution before developing it with hot water, agitating like you would a carbon transfer print. I took a break from it because of the semester, but I'm going to start again later this week, after final exams. My impression is that the process would be nice for making 3 color prints (I'm hoping anyway).

hello Musila,

sorry I'm not a native english reader, what is the AFC solution?

Casper

It's Ammonium Ferric Citrate dissolved in water.