Glossary

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Under-exposure

Too low exposure, resulting in a dark photo.

Uniformity

Use Case

A Use Case is a real photographic scenario that describes the requirements for a camera or a lens to shoot a certain type of photograph. DxOMark defines six Use Cases for scoring lenses and camera sensors (five for lenses, four for sensors): Travel & Family, Portrait & Studio, Landscape & Architecture, Reportage , Sports & Wildlife, and a general purpose use case to report sensor overall performance. Read more about Lens Use Cases or Sensor Use Cases definitions.

Vignetting

Vignetting (or light shading) is a progressive attenuation of brightness of an image when going far from its center, meaning that the corners of a rectangular image tend to be dark. Read more about how vignetting is defined, measured and scored.

Wavelength

The fundamental quality characterizing a photon, equivalent to its energy. Differing visible wavelengths are perceived as different colors.