Half a minute inversion initially and one inversion every 30 sec. after that....
Easily compare recipes with the FilmDev Recipe Finder
All FilmDev Recipes
Kodak Tri-X 400 in Kodak XTOL neat
7 minutes at 20°C/68.0°F
Kodak T-Max 400 at 800 in Kodak XTOL 1:1
9 minutes, 30 seconds at 20°C/68.0°F
Kodak T-Max 400 at 1600 in Kodak XTOL 1:1
12 minutes, 15 seconds at 20°C/68.0°F
Rollei Ortho 25 in Rodinal one shot
6 minutes at 20°C/68.0°F