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microprism

Saltos de línea: micro|prism
Pronunciación: /ˈmʌɪkrə(ʊ)ˌprɪz(ə)m/

Definición de microprism en inglés:

sustantivo

[usually as modifier]
An area of the focusing screen of some reflex cameras which is covered with a grid of tiny prisms and splits up the image when the subject is not in focus.
Example sentences
  • An array of lenticular microlenses may be positioned to accept the output of the microprisms so that the light exiting from the microlenses is a substantially collimated light source.
  • Plain screens are available without the central split-image and microprisms, and these are suitable for × 1 to about × 4.
  • Be careful to position your eye in the center of the finder to be able to see all the microprisms; some will black out if your eye is uncentered.

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