LITH films and halftone

[Philippe Monnoyer <philippe.monnoyer@skynet.be>]

Hello,

I have a direct positive film and I test it for enlarging negatives. The
problem is that the max density range I could achieve is only 8 steps on a
Stouffer 21step tablet. This correponds to a density range of 1 only. This
was with technidol.
I would like to avoid working with pyro. I also would like to avoid
exhaustive testing times of all the developper molecules on earth.
Do you have practical experience to share on how to get a long halftone
range?

Many Thanks,

Philippe
Belgium