Pre-flashing: Difference between revisions
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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. | In [[cinematography]] and [[photography]], '''pre-flashing'''<ref>{{cite web |title=What does “pre-flashing” mean? |url=https://www.lomography.com/school/what-does-pre-flashing-mean-fa-1eo1oaeq |website=lomography.com |access-date=17 July 2025 |language=en}}</ref> 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 [[shadow]]s without significantly affecting highlights. | It is sometimes used for artistic effects, as it can be used to add a [[colour cast]] to [[shadow]]s without significantly affecting highlights. | ||
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* [[Photographic hypersensitization]] | * [[Photographic hypersensitization]] | ||
* [[Pre-flash metering]] | * [[Pre-flash metering]] | ||
== References == | |||
{{Reflist}} | |||
{{DEFAULTSORT:Pre-Flashing}} | {{DEFAULTSORT:Pre-Flashing}} | ||
Latest revision as of 19:39, 17 July 2025
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In cinematography and photography, pre-flashing[1] 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.
See also
References
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