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在被摄物明暗反差太大或亮度变化过快时,不管是拍固定镜头,还是拍变焦镜头或摇摄镜头,由于图像平均亮度的变化,使用自动光圈会不太恰当,这时须用自动光圈锁定光圈值,这样拍摄时光圈就不会变了锁定光圈值的方法包括
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在被摄物明暗反差太大或亮度变化过快时,不管是拍固定镜头,还是拍变焦镜头或摇摄镜头,由于图像平均亮度的变化,使用自动光圈会不太恰当,这时须用自动光圈锁定光圈值,这样拍摄时光圈就不会变了锁定光圈值的方法包括
A、折衷法
B、起幅为主法
C、人脸测光法
D、落幅为主法
时间：2022-04-02 22:58
关键词：
哈尔滨师范大学
广播电视学
专升本
广播电视编导基础
平时作业1
答案解析
ABCD
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