预 景深自动曝光锁定按钮。

While looking through the viewfinder, press the previewAE lock button.

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按下频率锁定按钮前面板所有频率控制按钮将被禁用，防止意外改变频率。

FLOCK button. Pressing the frequency Lock button will disable all frequency determining controls on the front panel, to prevent accidental changes of frequency.

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拍摄时，如果一直按住预景深自动曝光锁定按钮，相机就能以锁定的曝光值重复拍摄。

If the preview AE lock button is kept pressed while shooting, it is possible to shoot repeatedly with the locked exposure value.

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