ISO?
思考了这么多光线啊构图啊还是不知道ISO到底全程是啥，刚查了一下，原来ISO不是一个简写。很多人以为ISO是international standard organization的简称，是这个组织规范了ISO，但事实上根本没有这个组织。设立ISO规范的组织叫做International organization for Standardization，这个组织同时也给其他很多产业定制规范。关于其为什么不叫IOS而教ISO官网给出的解释如下：
Because ‘International Organization for Standardization’ would have different acronyms in different languages (IOS in English, OIN in French for Organisation internationale de normalisation), our founders decided to give it the short form ISO. ISO is derived from the Greek isos, meaning equal. Whatever the country, whatever the language, we are always ISO.
所以说ISO来自于拉丁语isos，意思为公平。