Jon, in AGFA literature from 1973 I found the following: AGFA ISS 100 ASA, Rodinal 1+25 5 to 7 minutes, 1+50 9 to 11 minutes, all at 20° C, agitation first minute continuously, remaining time 5 seconds every minute; this will give normal negatives acc. AGFA. As far as I remember I used at least 10 ml of Rodinal concentrate for each film(posted 8624 days ago)