Hi, I've posted some questions about developing T-Max film recently and I've been running film test with JOBO, but I cannot get consistent results. Maybe the way I'm doing is wrong. Please help!! First of all, I've been testing D-76 developer with T-Max 100/400 8x10 film. last couple of days. I use JOBO CPA-2 processor with 3005 drum which holds 5 she ets of 8x10. The problem is that density differs depending on number of film in drum. I got good zone 8 density for 7 1/2min at 70F (straight) and 12min at 70F (1:1) with two sheets in the drum. (Those films were 3 stop over-exposed for this test s.) Solution which I used in the drum is 400ml full strength D76 solution for the fi rst undiluted process and 200ml full strength D76 + 200ml water (400 ml total) f or the second diluted process. I believe that's enough to develop two sheets of 8x10. However, when I process 3 sheets (600ml total), 4sheets (800ml total), or 5 shee ts (1000ml total), negative always came out dense at same time and tempature. It shows that those developing times work only when I have two sheets in drum!! Wired. I thought this is the way I have to do, adjusting the quantity of solution depen ding on number of film in drum. Maybe not? Should I always use1000ml solution in drum in spite of number of films in order to achieve consistent results? Am I using too much chemicals? Same thing happened with Xtol test. Any input will be appreciated! Thanks in advance. riichi
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