前言美国波拉公司采用干法银扩散加工冲洗和彩色网屏加色法成色原理,开发了一系列适用于任何35毫米照相机,而不需暗室加工的黑白、彩色一次成像胶片。其质量达到了专业摄影师的严格要求,为愈来愈多的使用者所接受,销售额直线上升。为此,英国FOCAL出版社专门介绍了该产品使用技术专利,现编译如下: Foreword American Bola company using dry silver diffusion processing and color screen plus color method principle, has developed a series of any 35 mm camera, without the darkroom processing of black and white, color imaging film. The quality of professional photographers to meet the stringent requirements, accepted by more and more users, sales soared. To this end, the British FOCAL Press specifically introduced the use of technology patents, are compiled as follows: