Encyclopedia > Pre-flashing

  Article Content

Pre-flashing

In cinematography and photography, pre-flashing is the exposure of the film or other photosensor to uniform light prior to exposing it to the scene to be imaged. This adds a bias to the overall light input recorded by the sensor.

It is sometimes used for artistic effects, as it can be used to add a colour cast to shadows without significantly affecting highlights.

It is also used in fields such as astronomy to bias CCD image sensors into a linear region, improving their low-light sensitivity.



All Wikipedia text is available under the terms of the GNU Free Documentation License

 
  Search Encyclopedia

Search over one million articles, find something about almost anything!
 
 
  
  Featured Article
Monty Woolley

... leg in 1942's The Man Who Came to Dinner[?], which he had performed onstage before taking it to Hollywood. Academy Awards and Nominations 1945 - Nominated - Bes ...

 
 
 
This page was created in 37.9 ms