三、扩印机的操作技术扩印照片时,要想使各种底片在照片上都达到高质量,第一选择合适的密度钮,第二选择合适的校正值,第三增加合适的颜色校正。(一)密度校正钮的使用方法每台扩印机都有一组密度校正钮,它们的主要作用是用来补偿底片中密度不平衡。密度钮的级差一般在20%或25%。如级差为 Third, the operation of the printer technology Enlarged photos, in order to make a variety of negatives in photos to achieve high quality, the first choice of the appropriate density button, the second choice of the appropriate correction, the third increase in the appropriate color correction. (A) the use of density correction button Each printer has a density correction button, their main role is to compensate for the film density imbalance. Density button level difference is generally 20% or 25%. If the level difference is