KODAK T-MAX 400 Professional Film is a continuous-tone panchromatic black-and-white negative film especially useful for photographing dimly lighted subjects or fast action, for extending flash distance range, and for photographing subjects that require good depth of field and fast shutter speeds with maximum image quality for the film speed. It is also useful for scientific and biomedical work, especially when fluorescence photography is required. It has high speed (ISO 400/27° in most developers), very high sharpness, extremely fine grain, and high resolving power; it allows a high degree of enlargement. 

A continuous tone, panchromatic black-and-white negative film that is especially useful for photographing dimly lighted subjects, fast action, extended range flash pictures, and subjects that require good depth of field. This film is highly useful for scientific and biomedical work, especially when fluorescence photography is required. Its high speed (EI 400), very high sharpness, extremely fine grain, and high resolving power enable a high degree of enlargement. You can expose it at a speed of EI 800 with normal processing, or at EI 1600 with push-processing to obtain excellent results.
 
KODAK T-GRAIN Emulsion that reshapes pebble-like crystals into a tabular form with more surface to catch light.

• Improved sharpness
• Maintains subject detail in prints at higher degrees of magnification than conventional films.
• Expanded exposure latitude
• Greater "forgiveness" with overexposure errors; quality prints from moderately under- or overexposed negatives.
• Better highlight separation.
• Improved reciprocity at long and short exposure times
• Less compensation required than with conventional films.
• 120-size film coated on a thicker (4.7-mil) base than other black-and-white roll films
• Improved dimensional stability; easier darkroom handling.
• Virtually no difference between the daylight and tungsten film speeds
• No need to adjust exposure for different light sources.
• More responsive to zone-system development changes
• Smaller time adjustments needed.
• No increase in processing time required for one-stop "push" with most developers
• No need to segregate one-stop-pushed film from normally exposed film. You can mix normal exposures and one-stop-pushed exposures on the same roll. (You may want to use paper one-half grade higher in contrast to print one-stop-pushed exposures.)
• Less development-time increase required for film pushed by two or more stops
• Saves processing time.
• Processed in standard developers, including KODAK T-MAX Developer and KODAK T-MAX RS Developer and Replenisher
• No need for a special developer. You can process T-MAX Professional Films with other black-and-white films.
• T-MAX 400 Professional Film--a versatile film for all-around use
• Excellent for use under lighting conditions from bright sunlight to dim existing light.