另一个设置是，当快门被按下一半时，前面的液晶屏上显示一张大大的黄色笑脸。
Another setting puts a large, yellow smiley face on this LCD when the shutter button is pressed down halfway.
当快门被设置为高速曝光，像1/200秒或更快时，两部分幕帘系统就相互配合完成。
When the shutter has been set for a very short exposure period, such as 1/200th sec or faster, the twin curtain system comes into its own.
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