论文部分内容阅读
一、前言随着电影事业的不断发展,对特技摄影的要求也越来越高。近年来,利用钠光(幕)片摄影工艺,使特技摄影有了较大的进展。这与红外线光谱摄影工艺比较起来克服了设备笨重、使用不便、耗电量大和成本高的缺点。钠光(幕)遮片摄影工艺采用的胶片是钠光片,这种胶片结构简单、马斯克形象清晰。它对光的选择严格,乳剂只对589mμ的光波敏感,这种极狭的光谱正好是金属钠燃烧时发出的黄光。取这种发黄光的金属作为
I. Introduction With the continuous development of the movie industry, the demand for special effects photography is also getting higher and higher. In recent years, the use of sodium light (screen) film photography process, making special effects photography has made great progress. Compared with the infrared spectral photography process overcame the bulky equipment, inconvenience, power consumption and high cost shortcomings. Sodium light (curtain) mask photography process uses sodium light film, this film structure is simple, Musk clear image. Its strict choice of light, the emulsion is only sensitive to light waves of 589mμ, this extremely narrow spectrum is precisely the yellow light emitted when burning sodium metal. Take this yellowish metal as