color filter

color-filter的词性：
n.（名词）

1. A photographic filter made of colored glass that modifies the light incident on a film by selectively absorbing colors. It is used when taking photographs through haze.
彩色滤光片：有色玻璃镜片，能够有选择地吸收某些色来修正胶片对光的感应效果。用于在烟雾中摄影。