The ARRI ALEXA LF is a large‑format digital cinema camera with switchable sensor modes, built‑in wireless, electronic viewfinder and full technical…
The ALEXA LF is a large‑format (LF) film‑style digital camera featuring a 36.70 × 25.54 mm ALEV III CMOS sensor, three selectable sensor modes (LF Open Gate, LF 16:9, LF 2.39:1), built‑in radios for ARRI Wireless Remote and Video systems, an electronic viewfinder and a filter holder for LF FSND filters. It supports high dynamic range and wide colour gamut recording in ARRIRAW and ProRes formats.
The camera measures 364 mm × 201 mm × 158 mm (14.33 × 7.91 × 6.22 in) and weighs 7.8 kg (17.2 lb) with the LPL mount. Power draw is about 137 W in typical use. It uses a 62 mm stainless‑steel LPL lens mount (44 mm flange depth) and offers multiple monitor outputs (UHD‑SDI, HD‑SDI) and optional wireless video transmission.
| Sensor size | 36.70 × 25.54 mm |
|---|---|
| Weight (body with LPL mount) | 7.8 kg (17.2 lb) |
| Dimensions (body with LPL mount) | Length 364 mm, Width 201 mm, Height 158 mm |
| Typical power draw | ≈ 137 W |
| Maximum frame rates (ARRIRAW) | 0.75 – 90 fps (depending on sensor mode) |
| Maximum frame rates (ProRes) | 0.75 – 60 fps (LF Open Gate) |
| Shutter angle range | 5.0° – 358.0° up to 60 fps; 5.0° – 356° above 60 fps |
| Exposure latitude | 14+ stops |
It uses a Large Format (36.70 × 25.54 mm) ALEV III CMOS sensor.
It records uncompressed ARRIRAW (.ari) and compressed QuickTime/ProRes, both with embedded audio, timecode and metadata.