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词汇 retrofocus
释义

Definition of retrofocus in English:

retrofocus

adjective
Photography
  • Designating a lens in which the distance from the back of the rear lens to the image plane (the back focus) is greater than the focal length of the lens, so allowing space for a reflex mirror or prism.

Origin

1950s; earliest use found in Journal Criminal Law.

Definition of retrofocus in US English:

retrofocus

adjective
Photography
  • Designating a lens in which the distance from the back of the rear lens to the image plane (the back focus) is greater than the focal length of the lens, so allowing space for a reflex mirror or prism.

Origin

1950s; earliest use found in Journal Criminal Law.

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