Despite the huge popularity of digital camera, many photographers who shoot in black and white still prefer to use film. Even the best digital cameras can't imitate the grainy effects and subtle shadings that you get in pictures printed from film negatives. Of the many black and white films available, Kodak's Tri-X 400 film is one of the most versatile. At 400 ISO, Tri-X allows the photographer to take pictures inside and under fairly low light conditions without flash. In addition, Tri-X is what darkroom technicians call "forgiving, " which means that if the photographer makes a mistake in setting the exposure on his camera, even by as much as two and a half stops in either direction, it's still possible to get a decent photograph from the negative. Tri-X yields aesthetically pleasing images that are moderately grainy and not overly high in contrast. In addition, it's quite inexpensive at approximately $3.59 per roll of 36 exposures. All these factors make Tri-X a perennial favorite among beginning photography students, as well as more experienced photographers.