Agfa seems to admit this time is too long and in the most recent data sheets they have kept the 17 minutes for 1+50 but at a EI of 160. I develop APX100 15 minutes in rodinal 1+60 and get very good results with it. I developed once APX100 in rodinal 1+100 for 20 minutes and I t gave negatives which were too thin. According to agfa, it is good for EI 64 which seems correct to me but negatives will be soft. I develop APX25 and PanF+ in rodinal 1+100 during 20 minutes with very nice results. Greetings, Frederik(posted 8615 days ago)