Applies to optical imaging systems in the optical spectral region from 100 nm to 1 m. Telescopic systems are also included. The standard refers to the relative irradiance in the image field, but it is also applicable to determination of the relative radiant power.
ISO 13653:1996 history
2019ISO 13653:2019 Optics and photonics — General optical test methods — Measurement of relative irradiance in the image field
1996ISO 13653:1996 Optics and optical instruments - General optical test methods - Measurement of relative irradiance in the image field