APEX system

APEX stands for Additive system of Photographic EXposure, whichwas proposed in the 1960 ASA standardfor monochrome film speed, ,as a means of simplifying exposure computation.

APEX system

APEX stands for Additive system of Photographic EXposure, whichwas proposed in the 1960 ASA standardfor monochrome film speed, ,as a means of simplifying exposure computation.