彩色底片如何快速、准确的制作成令人满意的照片,一直是暗房师关注的焦点。过去,彩扩机、暗房用彩色分析仪均以伊文思原理设计,但他只对部分负片有效,面对变化无穷的底片,采用积成灰的原理已不能满足彩色放大的要求。如何让滤色片浓度变化与人眼所看到的完全一致?底片的曝光量不同、放大倍率的变化、机器滤色片的差异、灯光的新旧程度也直接影响着放大照片的质量。高通正像校色系统通过暗房师的实验,将不同色罩、色温、曝光强 How fast and accurate color negative film made into satisfactory photos, has been the focus of the dark room division. In the past, Caikuang machine, darkroom color analyzer with Evans principle design, but he is only effective for some negatives, in the face of ever-changing film, using the principle of accumulation of gray can not meet the requirements of color amplification. How to make the color filter concentration changes and the human eye exactly the same? Exposure of different film, magnification changes, the difference between the color filter, the light of the new and old also directly affect the magnification of the quality of the photo. Qualcomm just like the color system through the darkroom experiment, will be different shade, color temperature, strong exposure