- a hemispherical plano-convex lens for photographing in a full 180° in all directions in front of the camera, creating a circular image having an increasing amount of distortion from the center to the periphery.
- a lens of small focal length, having a highly curved protruding front element, that covers an angle of view of almost 180°. It yields a circular image having considerable linear distortion
More Definitions
- TROOPSHIP (noun) Definition, Meaning & Examples
- ELECTRONEGATIVITY (noun) Definition, Meaning & Examples
- COUNCIL TAX (noun) Definition, Meaning & Examples
- SUBMERGIBLE (noun) Definition, Meaning & Examples
- MONOGENOUS (noun) Definition, Meaning & Examples
- MULTIPLIABLE (noun) Definition, Meaning & Examples