hello, after posting a film pushing topic, I now post a film pulling one. Indeed I processed the second half of my TMax400 I asked help for last time, but instead of pushing it up to 800 (that gives good results by the way) I pulled it at 200. I followed the instructions given on another forum, which was to reduce time by 25-30% per stop. It seemed logical, for pushing requires a time increased by 25-30% per stop. Unfortunetely, it didn't work well at all. Instead of 20 minutes, which was the time for 400iso, the film was processed in 15 minutes at 200iso, which is 20minutes - 25% . I got completely underexposed negs, and the film is much too transparent. Is there a better time calculation you'd know?