Unblinking Eye

Traditional darkroom photography and historical photographic processes

Articles on photography

Frederik Boone’s Recommendation for Kodak Tri X

Developer

Dilution

Time

Temperature

E.I.
Rodinal 1:100 20 m 20° C 400
Comments:   Agitation during the first 30 seconds and two inversions at the beginning of  every minute.  This is for 35mm film and for use with a condenser enlarger.

Ed Buffaloe’s Recommendation for Kodak Tri X

Developer

Dilution

Time

Temperature

E.I.
PMK 1:2:100 12 m 75° F 250
Rodinal 1:50 7 m 75° F 200
Acufine Standard 5.5 m 70° F 800
T-Max Standard 6 m 70° F 320
Comments:  For PMK agitate for first 30 seconds, then 5 seconds (2 inversions) every 30 seconds thereafter.  All others, agitate for first 30 seconds, then 10 seconds (4 inversions) per minute.  For diffusion enlarger.

Fritz Ptasynski’s Recommendation for Kodak Tri X

Developer

Film Type

Time

Temperature

E. I.
Divided D-76 35 mm 5m/8m 75°F 320
Divided D-76 120 5m/9m 75°F 320
Comments:  In a large tank, agitate the A Bath continuously for the entire 5 minute cycle. Agitate the B Bath continuously for the 1st minute, then 5 seconds every 30 seconds for the remainder of the time cycle.