It has the better security performance, can effectively prevent the accident with is caused by the automobile and other factor hits the barrier and causes the barrier fall off.

具有更好的安全性能，可有效的防止汽车和其他因素撞击而产生屏障脱落引起意外事故。

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The cam also has a focal length extension factor of 1.33, which helps to mitigate the problem of "vignetting, " or a fall-off in brightness that would occur without the extension factor.

ENGADGET: Leica M8 combines old-world charm with new-world tech