Unblinking Eye

Traditional darkroom photography and historical photographic processes

Articles on photography

Lonely Boy’s Recommendation for Kodak T-Max 400

Developer

Dilution

Exposure

Time

Temperature

E.I.
T-Max 1:4 N 7 m 19° C 400
T-Max 1:4 N+2 11 m 45 s 19° C 400
Comments:   Stainless Steel Tank processing, agitation continuously in the 1st minute and every 5 seconds (inverted 5 times) at 30 second intervals.  See his website at:  http://i.am/very.lonely.

Jeff White’s Recommendation for Kodak T-Max 400

Developer

Dilution

Exposure

Time

Temperature

E.I.
T-Max RS 1:9 N-2 4 m 30 s 68° F 200
T-Max RS 1:9 N-1 7 m 68° F 320
T-Max RS 1:9 N 10 m 68° F 400
T-Max RS 1:5 N+1 8 m 45 s 68° F 400
T-Max RS 1:5 N+2 14 m 68° F 400
Comments:   The information outlined here will be for Kodak's T-Max 400 in the 4x5 film size. I develop most of my film in BTZS tubes. 
See his website for charts and details:  http://www.jeffsphotos.com/zonetmygraphs.html

Ed Buffaloe’s Recommendations for Kodak T-Max 400

Developer

Dilution

Time

Temperature

E.I.
PMK 1:2:100 12.5 m 75° F 400
PMK+ 1:2:100 14 m 75° F 640
Rodinal 1:50 9.5 m 70° F 250
Rodinal 1:50 11.5 m 70° F 400
HC-110 B (1:31) 6.5 m 70° F 320
Comments:  These times are for roll films in small tanks, optimized for a diffusion enlarger.  For PMK and PMK+, agitation is for first 30 seconds, then 5 seconds each 30 seconds thereafter.  For all others, agitation is for first 30 seconds, then 10 seconds each minute thereafter.

Chris’ Recommendations for Kodak T-Max 400

Developer

Dilution

Exposure

Time

Temperature

E.I.
HC-110 1:11 N-1 6 m 68° F 200
HC-110 1:11 N 7.5 m 68° F 200
HC-110 1:11 N+1 9 m 68° F 200
HC-110 1:11 N+2 10.5 m 68° F 200
Comments: I use HC-110 diluted out to 1:11 from the stock solution. This is instead of something normal like Dil. B at 1:7. For sheets of TMY 400 I expose at 200.  I use old hard rubber tanks and hangers, with first 30 second agitation, then 5 seconds at each minute.  I suspect my plus/minus changes are not real accurate, but I have a good feeling for how much change that is in practical situations.  I use the same developer for the film in 120, but to keep measuring simpler I use it at 1:10 and cut :30 seconds off the time.

Note:  See the article on Divided D-23 for information on developing T-Max 400 in this developer.