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.
1939
2004
2006
2017
2010
1969
1933
1934
2007
2020
2003
2008
1990
1982
2016
2019
1925
2015