1. Proper focusing is critical at night because small apertures are often impractical — therefore one cannot afford to waste mispositioning the depth of field (see hyperfocal distance).
在夜晚，合适的聚焦非常关键，因为小光圈常常不合实际。因此，你不能错误地定位景深 （超焦距）。
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2. Proper focusing is critical at night because small apertures are often impractical — therefore one cannot afford to waste mispositioning the depth of field (see hyperfocal distance).
