[Jose A Martinez]

I might interject here to say that, if using panchromatic film, you will also need to account for reciprocity failure. Some films require less than others, for instance Fuji Acros.

Good luck on your project.

~Joe

I´m working with HP5+ developed in D76 1+1 for 11:30 mins. at 20º C. I made a roll with the exposure meter set at 125 ASA, thinking in the reciprocity failure. It is still washing, but, in an eye inspection I found it weak. I´ll measure it tomorrow when it´s dry, then I´ll know if I have to give longer exposures or give an stronger development, or both.