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Density
01
densité
(physics) the degree to which a substance is compacted, measured by dividing its mass by its volume
02
densité
the spatial property of being crowded together
03
densité
the amount of light that is allowed to pass through a photographic filter or film, typically measured in stops or optical density units
What is "density"?
In photography, density refers to the degree of light and dark in an image or a photographic print. It describes how much light is absorbed or blocked by the film or paper, affecting the image's contrast and tonal range. Higher density areas appear darker because they have more light absorption, while lower density areas are lighter. Managing density is important for achieving the desired exposure and contrast in photos, ensuring that details are visible and well-balanced throughout the image.
Exemple
The density of a material can affect its physical properties, such as its strength and buoyancy.
The concept of density is important in geophysics for understanding the composition and structure of Earth's interior.
To determine the density of an object, you divide its mass by its volume.
The density of water is approximately 1 gram per cubic centimeter (g/cm³).
Air has a much lower density compared to water, which is why objects float in water but fall through air.
