幻灯片的应用在教学、学术会议、宣传等方而起了重要的作用。本文介绍一种利用普通放大机制作黑白幻灯片的简易方法,它具有成本低、制作简便,效果好等优点。 1、将要制作的幻灯片的原件进行翻拍;单纯线条、图、文字、表格等可用保定黑白正片拍照并用D—72或D—11原液冲洗。这种处理方法反差强、线条黑度大。略有层次的原件、照片、彩图等,为了保持原图反差和层次的,可用全色片拍照和用D—76原 The application of slides plays an important role in teaching, academic conferences and publicity. This article describes a simple way to make a black and white slide using a normal magnifier, which has the advantages of low cost, easy production, good effect. 1, the original slideshow to make the original remake; simple lines, pictures, text, tables, etc. available Baoding black and white positive pictures and D-72 or D-11 stock solution rinse. This method of processing contrast, black lines. A slight level of originals, photographs, color maps, etc., in order to maintain the original contrast and level, available full-color film camera and the original D-76