Fish Gelatin over Platinum/Palladium prints

[dan_]

Continuing my journey into Alternative Photography I made another step ahead - color printing in fish gelatin.

Printing in water colors with a light sensitized fish gelatin binder is a historical photographic printing process that was first developed in Vienna in 1915 by the Austrian photographer Heinrich Kühn. Very few of his prints made in this technique still exists and no clear data about the the process itself.
After more than 1 year of testing, of giving up and starting over again, I have managed to tune the process and make the first prints.

On short, the process involves using Ferric Ammonium Citrate to sensitize a pigmented fish gelatin solution. The development is done in a diluted solution of peroxide.
It is a perfectly harmless alternative for gum printing and therefore an airbrush can be used to apply the emulsion on paper. That's what I did.
This prints are made of 6 layers of Cyan, Magenta and Yellow fish gelatin emulsions on a Pt/Pd black layer.
The paper used here is 280x380 mm. Fabriano Artistico extra White 640.

Here are my first 2 prints:

Bucuresti




Summer Memories

[alex ph]

This looks indeed suggestive. Great experiment, thank you for sharing!