I'd say go with the film you're most familiar with - in your case, Neopan. However, take the time to set up an experiment that provides a wide contrast range and shoot it with a roll, or even a partial roll, of Tri-X and Neopan. Process both according to mfrs' instructions and compare. Tnis shouldn't take more than a couple days at most and might reassure you in whatever you do. I've shot with both films mixed and when it comes to printing, I can't tell which is which without reading the edge of the film.(posted 8682 days ago)