多重曝光是一种拍摄技法,为了烘托气氛,用不同焦距分两次或多次曝光来表现一张照片难以表现的内容。多重曝光技术一般用来拍摄双影或多影照片。可以说,多次曝光功能是胶片相机时代的产物,在传统的胶片单反相机中,多次曝光是一个非常重要的功能,是一种独树一帜 Multiple exposure is a shooting technique, in order to heighten the atmosphere, with different focal lengths in two or multiple exposure to express a photo difficult to express content. Multiple exposure technology is generally used to shoot double or multi-film photos. It can be said that the multiple exposure function is the product of the era of film cameras, in the traditional film SLR cameras, multiple exposure is a very important function is a unique