照相机的成像质量也非常棒，特别是在光线较暗的拍摄条件下。
The camera's pictures are also fantastic, especially in low light. (Apple improved the phone's image sensor to make this possible).
光圈非常重要，因为它决定你的相机在不同照明条件下拍摄速度有多快，以及拍摄时的感光度(iso)为多少。
This is extremely important, because it determines how fast and at what light sensitivity (ISO) your camera can shoot in different lighting conditions.
不像人工场景，自然条件下的拍摄条件无法预计，这一点就显得尤其重要。
This is particularly important in natural surroundings in which, unlike within a controlled man made situation, conditions can be unpredictable.
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