那么现在，进入了第二部分的我们将要开始学习光圈大小以及快门速度，让我们这就开始吧。
Now in part two we're going straight to manual mode to learn about aperture sizes and shutter speeds. So let's do this thing.
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。
You get the same amount of light with a large aperture and a fast shutter speed as you do with a small aperture and a slow shutter speed.
第二个必要的条件是，操作者可以调节感光，曝光，快门以及压缩质量，以手控的方式拍摄。
The second obligatory condition is the possibility to shoot in manual mode, when sensitivity, exposure, diaphragm, and the compression quality can be adjusted by the user.
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