Starting recommendations for tray processed Tmax100 in Rodinol?

[ZoneIII]

I am doing re-doing my calibration testing since I finally ran out of my stock of the old version of my primary b&w film, Tmax100. I am testing it with my normal developers now but this is a good time to try some other developers too. Believe it or not, after nearly 40 years of darkroom work, I have never used Rodinol. Some say it is great with Tmax100 and others say it is terrible. (I like high acutance negatives in general.) But I would like to hear some starting point recommendations for developing Tmax100 sheet film in trays from those here who have experience with this combination. I have checked the MDC but I would still like to hear from others. What are your N times? What dilution do you prefer. I will, of course, have to test for my own expansion and contraction times but I want a good starting point for the film speed tests. I read one recommendation to do normal development with 1:50 dilution, N- with 1:100, and N+ with 1:25 and that sounds like it makes sense to me. What do you suggest as a starting point for normal development dilution and times?

One other thing: Have you found the far shorter development times published by Kodak for the the new version of the film to be accurate? I'm skeptical about the much shorter recommended times for the new film.

Thanks,
Tom

 

[dancqu]

I read one recommendation to do normal development
with 1:50 dilution, N-with 1:100, and N+ with 1:25
and that sounds like it makes sense to me. Tom

This technique may be of interest. At constant temperature,
dilution, and time, vary the ph of the Rodinal solution by addition
of bicarbonate of soda. From no soda to some and some more,
you will have N + to N - development. Just a suggestion.

I make the assumption that the ph of the usual working strength
Rodinol solution is high. Dan