You get the same amount of light with a large aperture and a fast shutter speed as you do with a smallaperture and a slow shutter speed.
你使用大光圈以及慢速快门所得到的光和你使用小光圈以及高速快门得到的光是一样多的。
2
The simplest way to do this is to choose a smallAperture setting (a large number) as the smaller your aperture the greater the depth of field in your shots.
最简单的办法是选用最小的光圈设定（镜头上显示的最大的数字），光圈越小，你所获得照片的景深就会越大。
3
Under those conditions photographers shoot with a fast exposure time and smallaperture. That makes it impossible to capture faint objects in a dark background, such as stars.