zone system
noun Photography.
a system for envisioning the values to appear in a black-and-white print and for determining exposure and development, based on a scale of shades ranging from 0 (black) to IX (white).
Origin of zone system
First recorded in 1970–75
Words nearby zone system
zone of leaching,
zone of saturation,
zone out,
zone plate,
zone refining,
zone system,
zone time,
zonesthesia,
zonetime,
zonian,
zonifugal