彩色正片无论在色彩的还原性和饱和度上都远远地超过彩色负片 ,而且便于制版印刷。所以 ,在彩色摄影领域 ,正片有着明显的优势。但是 ,彩色正片也有自己的缺点 ,其中之一就是制作照片比较麻烦 ,必须先拷贝成负片中间片 ,然后才能印放照片。而彩色正片拷贝负片 ,不要说在小城镇 Color positive in terms of both color reduction and saturation are far more than color negatives, but also easy to plate printing. Therefore, in the field of color photography, positives have obvious advantages. However, color positives also have their own shortcomings. One of them is that it is too cumbersome to make a photo. It must be copied into a negative intermediate before it can be printed. Color positive copy negatives, not to mention in small towns