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尼康d3200怎样调光圈

更新时间: 2020-11-01 00:00:00     

拨动相机右侧前方的拨轮。光圈是一个用来控制光线透过镜头,进入机身内感光面的光量的装置,它通常是在镜头内。表达光圈大小是用f值。对于已经制造好的镜头,不可能随意改变镜头的直径,但是可以通过在镜头内部加入多边形或者圆型,并且面积可变的孔状光栅来达到控制镜头通光量。

关键词: d3200 怎样 光圈

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