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ProRes 422 HQ
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ProRes 422 HQ

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High-bitrate 4:2:2 quality tier of Apple's ProRes Intermediate codec for visually lossless HD and UHD acquisition and post-production.

Overview

ProRes 422 HQ is one of several quality levels of the Apple ProRes codec, a family of intermediate codecs for professional video production and post-production. It is a camera and workflow technique (recording format and editing codec), not a lighting or grip device.

ProRes 422 HQ is the highest quality level within the 4:2:2 codec variant. Apple describes the format as visually lossless: it preserves image quality even over many generations of decoding and re-encoding. According to Apple, ProRes 422 HQ offers visually lossless preservation of the highest quality HD video that a single-link HD-SDI signal can carry.

Technical Specifications

  • Chroma Subsampling: 4:2:2
  • Bit Depth: up to 10-bit
  • Target Data Rate: approx. 220 Mbps at 1920x1080 and 29.97 fps (Apple specification)
  • Compression: Variable Bitrate (VBR) – simple frames are encoded with fewer bits
  • Characteristics: visually lossless, multi-generation stable

Position in the ProRes Family

ProRes 422 HQ sits above the standard ProRes 422 codec and below the 4:4:4:4 variants ProRes 4444 and 4444 XQ. The data rate increases significantly from ProRes 422 to ProRes 422 HQ; in return, more image information is preserved.

Quality LevelChroma SamplingPositioning
ProRes 4444 (XQ)4:4:4:4highest level, with alpha channel
ProRes 422 HQ4:2:2highest 4:2:2 level
ProRes 4224:2:2standard
ProRes 422 LT4:2:2reduced data rate
ProRes 422 Proxy4:2:2offline/proxy workflow

Use on Set and in Post

ProRes 422 HQ is available as a recording format in many professional cameras and external recorders and is considered a workhorse for demanding productions that do not work with RAW. It provides sufficient latitude for most color corrections, but generates significantly smaller files than RAW formats and places lower demands on storage and data transfer. This makes it particularly suitable when fast post-production, broad software compatibility, and simple data management are prioritized.

From the crafts

Perspectives

Cinematographer

Ich setze ProRes 422 HQ primär als Proxy-Format ein, wenn die Kamera nativ in RAW aufzeichnet – die 10-Bit-Farbtiefe bewahrt genügend Gradingspielraum für Belichtungskorrekturen im Zweifel-Bereich. Bei Green-Screen-Drehs wähle ich HQ über Standard 422, weil die höhere Bitrate saubere Kanten am Kompositingrand garantiert, besonders bei bewegten Haaren oder transparenten Objekten.

Director

ProRes 422 HQ ermöglicht mir während der Postproduktion spontane kreative Entscheidungen durch robuste Farbkorrektur-Möglichkeiten – ich kann nachträglich Stimmungen verstärken oder Szenen neu gewichten, ohne auf aufwendige RAW-Konvertierungen angewiesen zu sein. Die moderate Dateigröße hält unsere Schnitt-Sessions flüssig, während die Qualität für Last-Minute-Änderungen am Color-Timing ausreicht.

Producer

Mit ProRes 422 HQ kalkuliere ich 13 GB pro Stunde bei 4K-Material – das erfordert robuste Storage-Lösungen, rechtfertigt sich aber durch beschleunigte Post-Workflows ohne zeitraubende Transcodierung-Prozesse. Die plattformübergreifende Kompatibilität reduziert Vendor-Lock-in-Risiken und ermöglicht flexiblen Dienstleister-Wechsel zwischen verschiedenen Postproduktionshäusern ohne Format-Konvertierungen.

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