HistogramPhotographyA graph showing the distribution of tones in an image from dark (left) to light (right).Learn about this termUnit 03: exposure trianglePhotographyRelated TermsExposureThe amount of light that reaches the camera sensor. Controll...UnderexposureWhen insufficient light reaches the sensor or film, resultin...OverexposureWhen too much light reaches the sensor or film, resulting in...