Aberration - A flaw in a Lens that causes distorted images, especially towards the edge of the lens field. Compound lens construction and the use of small apertures can reducethese flaws. There are many types of a. Used . berrations, including chromatic, spherical, curvature of field, distortion, and elemental.. Used . ...
Other Effect - Any audio effect not otherwise defined or described.. Used . . Used . ...
Bump Button - A lighting console button that performs on action when pressed and another when released. This is a lighting console term.. Used . . Used . ...
American National Standards Institute - . Used . . Used .
Coners and Hinges - Corners are used to attach trusses and other rigging while hinges are used to allow attached rigging to swing open so other gear can be connected.. Used . . Used . ...