Negative film was invented by ______(1)_______, which allowed negative images to be produced. A negative image is a __________(2)___________

Henry Fox Talbot developed the negative-positive photographic process, allowing a negative image to be used to make positive prints. A negative is a tonal inversion: areas that are light in the scene appear dark, and dark areas appear light. The description of a white-on-blue print refers to a cyanotype, not a negative image.

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