I have to agree about Tri-X. It's one of those films that flat-out WORKS for so many different things. For instance, I tend to have B+W reversal processed by dr5 labs. And Tri-X makes one fine slide film. With MANY B+W films processed in dr5, contrast is VERY high (quite a bit higher than your average color chrome), and the result is a film that is rather finnicky and hard to shoot. But Tri-X is just right in this respect. In fact, with its contrast level and grain, dr5-processed Tri-X has the appearance of a B+W Kodachrome 200. In addition, the ISO is not so downrated that it becomes a less versatile film. Unlike Tmax 400 (which has its ISO downrated to ISO125 in dr5), Tri-X can be shot at a still respectable ISO320.