ISO 2721:1982 摄影技术.照相机.曝光自动控制

标准编号：ISO 2721:1982

中文名称：摄影技术.照相机.曝光自动控制

英文名称：Photography — Cameras — Automatic controls of exposure

发布日期：1982-12

标准范围

ISO 2721:1982为两个曝光参数的值定义了相机焦平面上的曝光，即场亮度和胶片速度。它还提供了评估其他光度特性的方法。这些数据适用于自动曝光控制系统，该系统内置于相机或与相机耦合，以根据各种曝光参数调节焦平面中的曝光。ISO 2721:1982适用于胶片相机，不适用于数码相机。

ISO 2721:1982 defines the exposure at the focal plane of cameras for values of two exposure parameters, i.e. field luminance and film speed. It also gives methods of evaluating other photometric characteristics. The data apply to automatic exposure control systems which are built into cameras or coupled with them to regulate the exposure in the focal plane in dependence of the various exposure parameters.ISO 2721:1982 is applicable to film-based cameras and it is not applicable to digital cameras.

标准预览图