Fabio Giorgi gives us a brief overview on how to combine two processes: Chemigrams and Lumen prints, or possibly three, since he is using cyanotype chemistry for the chemigram.
What about mixing together lumen-prints, chemigrams, silver nitrate, or a cyanotype sensitizer… Sounds weird? I agree, but the results can be quite rewarding.
This is what may happen when you end a cyanotype printing session with some sensitizer left unused, a pack of fogged photographic paper and, mainly, if the “What if…” pops up without warning.
In all tests the paper used was a fogged Kentmere VC Select RC paper, exposed 60 minutes under bright sunlight. UV index of 4. Fixing was done in a plain 5% hypo solution and the final wash was 5 minutes long in running water.
The reaction of the citrate with the silver in the paper makes the image very much similar to a Van Dyke brown.
With a low concentration silver nitrate solution the result is a salted paper look alike.
Plenty of room here to test with papers, time and toning..