21. Virtually all single-use cameras employ negative film . 22. The density range of negative film is up to 3.6d, while slide film dynamic range is 2.4d. 23. Kodak said its share of the market for color negative film fell 1 to 2 percentage points. 24. This group is in the product development phase, and has demonstrated its own positive / negative film system. 25. "Color negative film turns red in the heat, " said Richard Putnam, manager of Wilson Camera in Phoenix. 26. "' Kodacolor-II "'was the first of a new generation of Kodak color negative films using the C-41 process. 27. Some slide films can have a Dmax close to 4.0d with proper exposure, and so can black-and-white negative film . 28. You must choose between slide and negative films , and each comes in varying speeds ( sensitivity to light ). 29. A cross-sectional representation of a piece of developed color negative film is shown in the figure at the right. 30. Earlier color features used black and white negative film photographed behind color filters, or used Monopack only for certain sequences.
