The effectiveness of utilizing rotary processory such as the JOBO CPA2 and CPP2 for extended development times with dilute developers has been questioned by Bar nbaum because of the inability of the film to be idle in the developer for perio ds of time. Has anyone experience on this subject that they could impart? Do you go to tanks for this application or have you found a technique to use your JOBO ?

I know Sexton has been a strong proponent of the JOBO and uses extended developm ent with dilute developers, but I could not find literature that covered this su bject from him.

Thanks in advance.