chromatic aberration

An effect where the edges of an image have a colored, blurry halo or fringe. The RGB color channels appear noticeably offset from one another.

In photography, chromatic aberration is caused by a defect of the camera lens. The lens refracts light of different wavelengths (colors) slightly differently (technically speaking, the index of refraction of a lens material varies depending on the wavelength), causing the colors to become out of focus.

In digital art, chromatic aberration is used to simulate a photographic look or for artistic effect. In small amounts it can increase realism; in greater amounts it can create a sense of motion (similar to motion blur), convey a chaotic environment, or indicate anxiety, paranoia, or mental derangement. In excessive amounts it can induce eyestrain.

Examples

See also

• anaglyph
• drop shadow
• film grain
• lens flare
• soft focus
• heavy chromatic aberration

External links

• Wikipedia: Chromatic aberration
• Photography Life: What is Chromatic Aberration?

The following tags implicate this tag: heavy_chromatic_aberration (learn more).