Filter
noun
Subject Field: Cinematography, Photography, Optics

A plate of gelatin, glass, or plastic placed in front of the lens to alter the quality of the light. Monaco			- Contained in - Day for night Soft focus Fog effect Bibliography Index Home Conceptual tree
Context: Whilst experimenting with this method during Battle of Britain, the filter expert at Pinewood, Bert Driscoll, and myself produced a filter which Technicolor considered to be the best Travelling Matte Blue for colour separation they had ever handled. Campbell, 1979 Attestation: 2 Filtro Reliability: 3