This is the recommended developing time at nominal speed of 400 iso. Bergger specify that a 1 minute pre-soak is required. Constant agitation for the first 30 seconds, then 10 seconds at the top of every minute. This gives a medium contrast and good tonal range. Similar contrast but a lower grain density can be achieved by exposing at 500 iso and developing for an extra 90 seconds.
0 Comments