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单词 keystone effect
释义

Definition of keystone effect in English:

keystone effect

noun
Television Photography Cinematography
  • A distorting effect whereby a rectangular object produces a trapezoidal image, typically as a result of a line of projection, or an optical axis, not being at right angles to a screen.

Origin

Early 20th century.

 
 

Definition of keystone effect in US English:

keystone effect

noun
Television Photography Cinematography
  • A distorting effect whereby a rectangular object produces a trapezoidal image, typically as a result of a line of projection, or an optical axis, not being at right angles to a screen.

Origin

Early 20th century.

 
 
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更新时间:2025/1/27 13:57:11