Hi, today I ran some tests of the combination Xtol and T-Max and had a hard time!!! Please, help. What I wanted to get is Normal dev. time for T-Max 100(8x10) using Jobo CPA processor. Here's what I did and waht I got in my test. First of all, I exosed films for the test. I shot a couple of grey card picture s. (3 stops overexposed to obtain density of Zone 8). Then, I processed two films in JOBO drum which accepts 5 sheets at one time. (I had two films: one is grey card neg. for test and the other film was exposed normally; I need at least two sheets of film in the drum to get requirement of chemical quantity.) I diluted developer since I prefer that way. (400ml solution used at 1:1 diluted solution, Xtol 200ml and Water 200ml) As far as time, and temp. I followed Kodak's recommendation. (7/1/2min at 70F) However, what I got was really thin negative. Then, I changed the Dev. time to 12min(too long?) for the next process. Everything was same besides the Dev. time, and this time the result was OK. Density of the grey card in Neg was around 1.35. Therefore, I thought 12min is Normal Dev. time for this combination. Yet, what I got last surprised and confused me!!! Last test I had 4 sheets in one drum, 800ml solution used (Xotl 400ml and Water 400ml), and processed for 12min at 70F. The result: all negatives were dense. Why?? If anyone could answer me or advice or tell me how you process, I'll appreciate!! Thank you. riichi
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