Recommended Basic Conditions for Measuring the Photometric Output of Stage and Studio Luminaires by Measuring Illumination Levels Produced on a Planar Surface
The document describes the basic testing conditions for measuring the photometric output of a stage or studio luminaire by testing method that measure the illumination levels produced by the luminaire on a planar surface. These testing methods include, but are not limited to, measurements taken by digital cameras or hand-held meters. This atandard is not intended to give guidance on testing conditions for methods that use goniophotometers.