Inversions first 30sec then 2 every minute.
Recipes & dev times using Film Rollei Retro 400S
Rollei Retro 400S at 1600 in Agfa Rodinal 1:25
24 minutes at 20°C/68.0°F
Rollei Retro 400S at 320 in Agfa Rodinal 1+25
10 minutes, 30 seconds at 20°C/68.0°F
Rollei Retro 400S in Agfa Rodinal 1:50
23 minutes at 20°C/68.0°F
Rollei Retro 400S in Agfa Rodinal 1+100
1 hour (Stand developed) at 20°C/68.0°F