摄影中的概念

 

 

 

 

 

快门速度

 

 

 

 

 

快门速度指快门开关所需的时间量。它控制光线通过光圈到达图像传

感器之前的光量。

 

 

 

 

 

快门速度将以秒和几分之一秒衡量。在许多相机上,快门速度约为随

后每个设置的一半 - 1 s1/2 s1/4 s1/8 s1/15 s 等。与连续的光

圈设置一样,每个连续的快门速度设置可允许约一半的光线量进入。

因此,每个连续的快门速度设置相当于约 1 EV EV(曝光值)变

化。

 

 

 

 

 

 

 

+1 EV

 

 

 

曝光

 

 

 

 

 

 

 

-1 EV

 

 

 

1 s

1/2 s

1/4 s

1/8 s

1/15 s

1/30 s

 

 

快门速度

 

 

 

因此,快门速度越快,允许进入的光量越少。 同样,快门速度越慢, 允许进入的光量越多。

较慢的快门速度可让更多的光线进入相机,从而使照片更亮。但是, 由于快门打开的时间较长,因此移动的拍摄对象会出现模糊。较快的 快门速度可让更少的光线进入,从而使照片更暗。但是,由于快门打 开的时间较短,因此移动的拍摄对象看起来更清晰、对焦更好。

1 s

1/250 s

19

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Samsung EV-NXF1ZZB1HHU, EV-NXF1ZZB2HDE, EV-NXF1ZZB2HCH, EV-NXF1ZZB2HHU 感器之前的光量。, 因此,快门速度越快,允许进入的光量越少。 同样,快门速度越慢, 允许进入的光量越多。

EV-NXF1ZZB2HCZ, EV-NXF1ZZB1IHU, EV-NXF1ZZB1JHU, EV-NXF1ZZB2JHU, EV-NXF1ZZB2KHU specifications

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