 Push processing Tri-X to a higher "exposure index" of EI 800 in a standard developer yields very good results, while further pushing to EI 1600 requires more sophisticated processing.A popular method for pushing Tri-X film is using highly diluted developers with little or no agitation and extended development times.This method which is referred to as "stand" or "semi-stand" development, can allow the film to be pushed to speeds up to EI 3200 or 6400.