@ Bob Carnie
I want to try the Sabattier effect on 6x9 film (APX 100, Fomapan 100, FP4+, or HP5+). I red Dr.Jolly's article and mixed his solarization developer but didn't find the right method of development and flashing yet.
In a thread on print solarization you wrote that you did solarization on film too. Will you share your experiences?