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彩色拷贝幻灯片目前应用还比较广泛。但是由于冲洗工艺比较复杂，其中有些彩显药剂不容易搞到，因此，很多摄影室都不开展这项工作，采用彩色反转片。但是，有些以前用彩色负片照的，既洗像片又需要洗幻灯的负片只有采用拷贝的方法，因为彩色反转片与彩色反转相纸成本较高。因
Color copy slides are still relatively wide range of applications. However, due to the complexity of the rinsing process and the fact that some of the color-display agents are not readily available, many photo studios do not carry out this work and adopt color reversal films. However, some negatives that were previously negatives of color and negatives are only copied in the negative because of the high cost of color reversal films and color reversal photographic paper. because