序言对摄影镜头的评价,目前,往往仅限于它的成象性能高低。但是,由于彩色胶片的发展,随着色彩的表现媒体由摄影艺术固定下来,从色彩还原方面评价镜头多了起来。我们有玻璃是无色透明的这一固有概念。但是,摄影镜头透过的光有的着淡黄 The preamble to the evaluation of photographic lens, at present, is often limited to the level of its imaging performance. However, with the development of color film, as the media of color is fixed by photographic art, more lenses are evaluated from the aspect of color reproduction. We have the inherent notion that glass is colorless and transparent. However, some of the light passing through the photographic lens is yellowish