File:Fluorescent beat effect.ogv
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Fluorescent_beat_effect.ogv (Ogg Theora video file, length 15 s, 640 × 480 pixels, 3.35 Mbps, file size: 6.05 MB)
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Summary
| Description |
Deutsch: Flouresent English: The beat effect problem created when shooting films under standard fluorescent lighting. Français : Montre de l'effet de battement optique. Un tube fluorescent n'est pas allumé en permanence. Il s'éteint et s'allume à une fréquence double de la fréquence du réseau électrique (2 × 50 Hz en Europe et 2 × 60 Hz en Amérique du Nord). Une caméra enregistre à la fréquence de 24 images ou plus par seconde. Cette différence de fréquence provoque l'effet de battement. Română: Prezentare a efectului de intermitență ce se ivește la filmarea unei lămpi fluorescente. Un tub fluorescent (numit și neon) nu luminează în permanență, el se stinge și se aprinde la o frecvență dublă față de frecvența rețelei electrice (2×50Hz în Europa și 2×60Hz în America de Nord). O cameră video înregistrează la o frecvență de 24 de cadre pe secundă sau mai mult. Această diferență de frecvență provoacă efectul de licărire. |
| Source | Own work |
| Author | Alexey Goral |
Licensing
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Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License. |
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This file was selected as the media of the day for 03 November 2011. It was captioned as follows:
English: The "beat effect" problem created when shooting films under standard fluorescent lighting.
Other languages
English: The "beat effect" problem created when shooting films under standard fluorescent lighting. Français : Montre de l'effet de battement optique. Un tube fluorescent n'est pas allumé en permanence. Il s'éteint et s'allume à une fréquence double de la fréquence du réseau électrique (2 × 50 Hz en Europe et 2 × 60 Hz en Amérique du Nord). Une caméra enregistre à la fréquence de 24 images ou plus par seconde. Cette différence de fréquence provoque l'effet de battement. Română: Prezentare a efectului de intermitență ce se ivește la filmarea unei lămpi fluorescente. Un tub fluorescent (numit și neon) nu luminează în permanență, el se stinge și se aprinde la o frecvență dublă față de frecvența rețelei electrice (2×50Hz în Europa și 2×60Hz în America de Nord). O cameră video înregistrează la o frecvență de 24 de cadre pe secundă sau mai mult. Această diferență de frecvență provoacă efectul de licărire. 中文（简体）：在日光灯下拍摄影片时造成的闪动
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 18:43, 15 October 2009 | 15 s, 640 × 480 (6.05 MB) | Alexey Goral | {{Information |Description=Flouresent |Source={{own}} |Date= |Author=Alexey Goral |Permission= |other_versions= }} |
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