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Filmmaking Camera, lighting, sound, editing and the crew roles behind every shot.

ARRI Alexa LF: Meaning & Definition in Film

A full‑frame large format camera combining ARRI quality with increased sensor size

  • 7 sections
  • 1 min read
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On this page 7 sections

ARRI Alexa LF Explained

Large Format Revolution

Released in 2018, the Alexa LF (Large Format) brings the Alexa image quality to a 36 mm x 24 mm sensor, unlocking wider field of view, shallower depth of field, and enhanced cinematic aesthetics. It supports both open gate and multiple aspect ratios including 4:3, 16:9, and 1.85:1.

Sensor and Resolution

  • Sensor: Full frame 4.9K open gate (4448 x 3096 pixels)
  • Dynamic Range: 14+ stops
  • Frame Rates: Up to 90 fps (Open Gate)

ARRI Alexa LF: Optical Considerations

Full‑frame sensors enable the creative use of anamorphic and spherical lenses with greater field coverage. Shallow depth of field techniques become more pronounced, enriching visual storytelling.

Recording and Workflows

The LF records ARRIRAW and ProRes to Codex Compact Drives and Sony SRMemory cards. Integrated with Codex Vault and ARRI WebGate, it facilitates secure data transfer and remote monitoring.

ARRI Alexa LF: Cinematic Impact

The Alexa LF has been adopted for blockbuster features such as Dune: Part Two, Top Gun: Maverick, and The Batman, valued for its large format look and consistent ARRI color science.

ARRI Alexa LF: Trivia

  • The Alexa LF’s sensor size approaches that of medium format stills cameras, blurring lines between stills and motion capture.
  • A lightweight LF mini version supports gimbal and drone applications, expanding creative possibilities.

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