黑白照片复制幻灯片时,应使用黑白反转片。然而由于目前市场缺货,故可采用彩色反转片拍摄的方法,但这种方法要进行较麻烦的色校正,故又不便使用。目前比较理想的方法是用黑白底片制成负像,然后再复印成正像,或者对黑白片进行反转加工。本文将介绍黑白片的反转加工方法。用底片进行反转加工时存在下面两个问题。 Black and white photo copy slide, you should use black and white reversal film. However, since the current market is out of stock, the method of taking a color reversal film can be adopted. However, this method requires more cumbersome color correction and is inconvenient to use. At present, the ideal method is to make a negative image with a black and white film, and then make a copy, or reverse the black and white film processing. This article will introduce the black and white film reversal processing method. The following two problems exist when reversing with negatives.