Thanks for the suggestion; I did not perceive film speed loss with the combo PX 125/Microdol X full strength. I found a Kodak FAQ developing times chart where they don't recommend the dilution 1:3 for the PX 125 and Tri X 320 (TXP) at 60ºF/20ºC, only from 21ºC. Carlos 2010/3/9 Richard Knoppow <dickburk@xxxxxxxxxxxxx>: > > ----- Original Message ----- > Microdol-X and Perceptol, when used full strength, lose about 3/4 stop of > speed. This is within the latitude of the film but you may get better shadow > rendition by increasing exposure a little. I would shoot it at around > EI-250. > Tri-X 320 has low toe contrast so pushing the exposure up the toe a > little may be beneficial anyway. > PXP in full strength Microdol-X should be exceedingly fine grain. > > -- > Richard Knoppow > Los Angeles, CA, USA > dickburk@xxxxxxxxxxxxx > --- > Rollei List > > - Post to rollei_list@xxxxxxxxxxxxx > > - Subscribe at rollei_list-request@xxxxxxxxxxxxx with 'subscribe' in the > subject field OR by logging into www.freelists.org > > - Unsubscribe at rollei_list-request@xxxxxxxxxxxxx with 'unsubscribe' in the > subject field OR by logging into www.freelists.org > > - Online, searchable archives are available at > //www.freelists.org/archives/rollei_list > > --- Rollei List - Post to rollei_list@xxxxxxxxxxxxx - Subscribe at rollei_list-request@xxxxxxxxxxxxx with 'subscribe' in the subject field OR by logging into www.freelists.org - Unsubscribe at rollei_list-request@xxxxxxxxxxxxx with 'unsubscribe' in the subject field OR by logging into www.freelists.org - Online, searchable archives are available at //www.freelists.org/archives/rollei_list