Many different looks can be created when using a prism. From fanned out looks with a linear prism to cone patterns with a multi-facet round prism, the possibilities are endless. Gobo images can be multiplied for projection purposes, and some programmers even use a prism to gain more coverage by widening the open beam. One of my favorite tricks with a prism is to iris in or make a unique shutter cut. When these reduced-aperture shapes are put through a prism, some very bold looks are possible.
—Brad Schiller, from “Feeding the Machines,” PLSN, Dec. 2016, page 49
