相机的测光方式要设置在局部测光或点测光方式，测光点对着你想要锁定曝光值的目标，按下锁定钮。

To make this work, use the partial metering mode (or spot metering mode) over the subject where you want to lock the flash output then press the asterisk (*) button.

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电磁铁或手动操作，按下并旋转手动操作钮可实现手动状态锁定。气动弹簧复位、机械弹簧复位、电磁铁操作复位。

Solenoid or manual operation, press the button and rotate manual operation can achieve a state of lock manually. Reset pneumatic spring, mechanical spring reset, reset electromagnet operation.

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专利安全钮及底座锁定功能，可杜绝婴儿床在使用状态中意外收合。

Patent security button and the base foundation locking function may prevent the baby bed is accidentally to be closed under using condition.

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