ISO Speed Rating: 400 Film Type: BW (Black and White) Process: Tmax developer, XTOL, Standard Black & White Chemistry Grain: Unique Fine Sharpness: High Remarks: Panchromatic, black-and-white, excellent tone gradation, brilliant highlights, depth of field, fast shutter speeds, extends distance range of flash, fast action subjects, dimly-lit subjects, low-flare interior lighting, portraiture with low-contrast backlighting outdoors, general. Kodak TRI-X 400 135-36 is a high-speed, panchromatic film designed for dim light or fast action photography. At an ISO rated speed of 400, this film offers excellent tone gradation and brilliant highlights. The Tri-X shines in depth of field, fast shutter speeds and extension of the distance range for flash photography. A world-class film, the Kodak TRI-X 400 135-36 film's performance is unrivalled. Ideal For: Dimly-lit subjects Fast-action Subjects Extension of the distance range for flash photography Fast shutter speeds Depth of field requirements Low-flare interior lighting Portraiture with low-contrast backlighting outdoors General