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Akronyme und Begriffe erklärt

Yealink erkundet Yealinks vereinfachte Erklärungen gängiger Begriffe aus der Geschäftskommunikation im Hinblick auf die Anwendung von drei wichtigen Kommunikationsgeräten – IP-Telefonen, Videokonferenzgeräten und Headsets, die auf Microsoft, Zoom und anderen Systemen laufen – in der Geschäftsarbeit.

Was ist eine 4K-Videokamera?

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Eine 4K-Videokamera ist ein Kameratyp, der Videoinhalte mit einer Auflösung von 4K aufnimmt, was normalerweise einer horizontalen Auflösung von etwa 4.000 Pixeln entspricht. Die am häufigsten für Videos verwendete 4K-Auflösung beträgt 3840 x 2160 Pixel (oft auch Ultra HD oder UHD bezeichnet), was viermal so viel Pixel wie Full HD (1920 x 1080) ist.


Hier sind einige wichtige Funktionen und Aspekte von 4K-Videokameras:


1. Auflösung

Wie bereits erwähnt, nehmen 4K-Videokameras Videos mit einer Auflösung von 3840 x 2160 Pixel auf und bieten so hohe Detailtreue und Klarheit.


2. Sensorgröße

Diese Kameras haben im Vergleich zu Kameras mit niedrigerer Auflösung oft größere Sensoren, was zu einer besseren Leistung bei schwachem Licht und geringerer Tiefenschärfe führen kann.


3. Bildraten

Viele 4K-Kameras unterstützen verschiedene Bildraten, darunter 24 fps, 30 fps und sogar noch höhere Bildraten wie 60 fps oder 120 fps, die für Zeitlupeneffekte verwendet werden können.


4. Videoformate

Sie bieten normalerweise verschiedene Videoformate wie H.264 oder H.265 (HEVC) und unterstützen möglicherweise professionelle Codecs wie ProRes oder DNxHR.


5. Aufnahmemedien

Je nach Modell können diese Kameras auf SD-Karten, CFast-Karten oder internen Solid-State-Laufwerken (SSDs) aufnehmen.


6. Konnektivität

Funktionen wie HDMI-Ausgang, USB-Anschlüsse, WLAN und Bluetooth-Konnektivität sind üblich und ermöglichen den direkten Anschluss an Monitore, externe Rekorder oder die drahtlose Übertragung.


7. Bedienelemente und Schnittstellen

Die meisten 4K-Kameras verfügen über erweiterte Bedienelemente und Schnittstellen, darunter Touchscreens, anpassbare Tasten und Fernbedienungsoptionen.


8. Akkulaufzeit

Die Akkulaufzeit kann je nach Modell unterschiedlich sein, aber viele 4K-Kameras sind mit wiederaufladbaren Akkus ausgestattet, die mehrere Stunden Aufnahmezeit ermöglichen.


9. Zusätzliche Funktionen

Einige Modelle verfügen über integrierte Bildstabilisierung, Fokus-Peaking, Zebramuster und andere Tools, die beim Aufnehmen helfen.


4K-Videokameras werden häufig in der professionellen Filmproduktion, im Rundfunkfernsehen, bei Videokonferenzen, in verwendet Besprechungsräume , bei Event-Videografie und von Content-Erstellern verwendet, die hochwertiges Filmmaterial für Online-Plattformen wie YouTube und Vimeo benötigen.


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