黑白航空摄影胶片ISO航空感光度和平均斜率的测定方法

Determination of ISO Aerial Speed and Average Gradient of Black -and -White Aerial Camera Films

黑白航空软片的感光测定越来越多地使用ISO制,本文介绍二种实用的ISO航空感光度和平均斜率的测定方法。

ISO 7829:Black -and -white aerial camera films -determination of ISO aerial speed and average gradi,is an international standard implemente d for measuring the photographic pro perties of b /w aerial photographic f ilms,this paper introduces two practical operational methods for carrying out the relevant test.