KS A ISO 12232-2020 Photography — Digital still cameras — Determination of exposure index, KS speed ratings, standard output sensitivity, and recommended exposure index
2020KS A ISO 12232:2020 Photography — Digital still cameras — Determination of exposure index, KS speed ratings, standard output sensitivity, and recommended exposure index
2011KS A ISO 12232:2011 Photography-Digital still cameras-Determination of exposure index, KS speed ratings,standard output sensitivity, and recommended exposure index