In 2012 I started testing a new hydrogen peroxide based bleach with an acid as a stabilizer, citric acid was the first choice, and these were my first positive results with Fomapan R100 on 16mm film.
1970
2006
1959
2003
2018
1950
1969
2019
1953
2024
2012
1897
1895
1956
1993
1896
2011