能多次曝光拍摄，当快门按钮按下时，胶卷不会卷动，可实现在同一底片上多次曝光。
Enables multi exposure shooting. The film does not advance when the shutter button is pressed to allow taking several exposures on the same frame.
能多次曝光拍摄，当快门按钮按下时，胶卷不会卷动，可实现在同一底片上多次曝光。
Enables multi exposure shooting. The film does not advance when the shutter button is pressed to allow taking several exposures on the same frame.
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