depth of focus

• 景深

depth of focus的用法和样例：

例句

1. We've got a little more depth of fi eld by selecting a smaller aperture, but without exposure compensation the metering exposes for the darker background.
   通过选择小光圈增加了景深，但没有曝光补偿的话，测光表将为较暗的背景曝光。