Last year, I posted in this forum the results of a test I made in order to know how I should photography with TX400 and HC110. At that time I found that, for my working system, TX400 (EI200) and HC110 (E 1:47), 6 minutes developing time, were perfect. Now, as I am trying to take photos with very little grain, I have made the same test for TMAX400 and HC110. These are the results that I have found: Film: TMAX400, 35 mm. EI 250 Pre-washed: Water, during 1 minute of constant agitation. Developer: HC110 (E- 1:47) Developed two rolls of film, continuous agitation during the first 30 seconds, and then 5 times each 30 seconds. Time of developing: 8 minutes. Temperature: 20ªC. Stop bath: Kodak Max Stop, 1:15, and 1 minute with constant agitation. Fixer bath: Tetenal, 1:9, 8 minutes. The first minute with continue agitation, and then 5 times each 30 seconds. I have taken 8 minutes instead of 5 minutes because I have read that this film needs more time. Results: After having taken pictures of a Kodak grey card, I have found the following relative densities: Zone 5: 0,63 Zone 1: 0,10 These densities have been measured with my RH Designs Analyzer Pro. My conclusions: For my working system I can say that TMAX400 (EI250) and HC110 (E -1:47), 8 minutes developing time, are correct. I hope this information could be useful for anybody in this forum. I would ask you to share any other similar information that you could have.