Hello Terry,(posted 8825 days ago)did you have a look at Kodaks webpage, as they have the Xtol publication (almost 30 pages) on the web. Including dev. times for several techniques and thinning rates (1:1-1:3). Personally I use Xtol 1:1 or 1:2 in a small tank, which turns out 120 ml/135-36 at 1:1 and 80 ml/135-36 at 1:2.(one shot)
I came across the Jobo rotation volumes considering a Jobo myself and to cut a long story short: 120 ml/per roll is the minimum volume, so did you consider 160 ml per roll? Which would work out 80 ml Xtol at 1:1.
Regarding even lower ml per films please consider the fact that you need a certain number of developer molecules to develop a film. This number of molecules is controlled by the volume of Xtol stock solution used. And I think I heard of Jobo users having underdeveloped films in Xtol by simply using not enough stock solution. 67 or 70 ml/135-36 seems the lower limit, so 80 ml is on the safe side.
Kind regards,
Wolfram
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