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optical effects

plural noun, Movies, Television.
1.
special visual effects, as the wipe or dissolve, created in the camera or especially in a film laboratory by technicians using complex optical and electronic equipment.
Also called opticals.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for optical effects
Historical Examples
  • The drops in clouds and fog have often been measured, either by noting their optical effects or by microscopic examination.

    Meteorology Charles Fitzhugh Talman
  • At first they seemed to be optical effects, as though the eye itself were playing tricks.

    Islands of Space John W Campbell
  • The beauty of natural crystals of transparent minerals is largely due to the optical effects which I have just been describing.

  • There are other optical effects to be seen sometimes on the horizon somewhat resembling twilight.

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