控制相机曝光的参数主要有三:光圈,快门和 ISO 感光度。

光圈 F 数值越大,进光量越少,光圈越小,虚化效果越小。

F1.2 -1.8 为大光圈,适合拍人像。

F5.6–8 为中等光圈,风光照,集体合照。

F11 以上适合拍风光。

转动模式转换盘选择A挡,然后转动主拨盘,即可调节光圈大小。

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Before you speak, ask yourself how will this land on the other person.

  • Dyslexia is a disorder characterized by reading below the expected level for one’s age. Different people are affected to different degrees.
  • ADHD (Attention-deficit/hyperactivity disorder) is one of the most common neurodevelopmental disorders of childhood. It is usually first diagnosed in childhood and often lasts into adulthood. Children with ADHD may have trouble paying attention, controlling impulsive behaviors (may act without thinking about what the result will be), or be overly active.
  • Sell Accessible Products and Services https://www.section508.gov/sell/

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