The spreading of light as it passes the edges of opaque objects or through narrow slits.
Light is also diffracted when passing through a lens. The effects of this distortion on images is greater as the aperture becomes smaller.
Kodak: A Concise Glossary for the Non-Technican
The National Film and Sound Archive of Australia acknowledges Australia’s Aboriginal and Torres Strait Islander peoples as the Traditional Custodians of the land on which we work and live and gives respect to their Elders both past and present.