The film I use for my photography are Tri-X 400 and Tmax 100. I like Tri-X for its contrast, grain and for its ability to be pushed up to 2 f-stops giving me the black and white contrast that I like. I find it to be perfect for reportage photography. Tmax 100 is the film in my Holga cameras most of the time. I find that the slow ISO of this film gives me perfect exposure in daytime shooting with "Holgas". The spring mechanism that operates the shutter on these plastic toys are pretty much already set to 1/100th of a second while the aperture choice is only between an f/8 and f/11. I find the smooth grain of Tmax 100 to be very appealing.