Tuesday, March 25, 2008

CONTRAST

Definition: The difference in brightness between the lightest and darkest parts of a photographic subjects, negative, prints or slide. Contrast is affected by the subject brightness, lighting, film type degree of development, the grade and surface of the printing paper, and the type of enlarger head used.

Definition: subjective judgment of the difference between densities or luminosities and their degree of tonal separation in a subject, negative or positive print.

Definition: The difference between the darkest and lightest areas in a photo. The greater the difference, the higher the contrast.

Definition: The range of difference in the light to dark areas of a negative, print, or slide (also called density); the brightness range of a subject or the scene lighting.

Definition: The tonal gradation between the highlights, midtones, and shadows in an image.

Definition: The measure of difference between the lightest and darkest values appearing in an image. High-contrast images contain mainly dark values and white values with few steps or tones available in the image.

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