KODAK TRI-X Pan Film is a high-speed (ISO 400/27°) panchromatic film that is a good choice for photographing dimly lighted subjects or fast action, for photographing subjects that require good depth of field and fast shutter speeds, and for extending the distance range for flash pictures. TRI-X Pan Film (TX) is available in 120 and 135 sizes and 35 and 70 mm long rolls. You can retouch the 120-size film on the emulsion side. TRI-X Pan Film is recommended for push-processing applications.
Kodak Tri-X Pan is a high-speed panchromatic film (ISO 400) ideal for photographing dimly lit subjects or fast action. It also works well for photographing subjects that require good depth of field and fast shutter speeds, and for extending the distance range for flash pictures. This black-and-white film is recommended for push-processing applications.