2 hours (Stand developed) at 21°C/69.8°F
C-41 film in B&W Print Developer.
Pre-rinsing 30 hard inversions (2 changes of water)
First minute invert, then every half hour stir gently for one minute.
Fixed for 5 minutes in Rollei RXN 1/9
Before developing the films have been soaked in the sea for 30 minutes then let to sit wet for about 3 hours.