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ARRI ALEXA LF
ARRI ALEXA LF
The ARRI ALEXA LF (Large Format) is a digital cinema camera that meets and exceeds modern 4K production requirements. Featuring a sensor slightly larger than full frame, the ALEXA LF records native 4.5K with ARRI’s best overall image quality. This allows filmmakers to explore larger-format aesthetic while retaining the sensor’s natural colorimetry, pleasing skin tones. Versatile recording formats, including efficient ProRes and uncompressed ARRIRAW up to 150 fps, provide unprecedented creative freedom.
Workflow
Technical Data
| Sensor | Large Format ARRI ALEV III (A2X) CMOS sensor with Bayer pattern color filter array |
| Image aperture of recorded image | 36.70 x 25.54 mm (LF Open Gate 4.5K) 36.70 x 15.31 mm (LF 2.39:1 4.5K) 31.68 x 17.82 mm (LF 16:9 UHD/2K/HD) |
| Resolution | Sensor Mode LF Open Gate 4.5K 4448 x 3096 for LF Open Gate ARRIRAW / ProRes 4.5K Sensor Mode LF 2.39:1 4.5K 4448 x 1856 for LF 2.39:1 ARRIRAW / ProRes 4.5K Sensor Mode LF 16:9 3840 x 2160 for LF 16:9 ARRIRAW / ProRes UHD 3840 x 2160 down sampled for 2048 x 1152 ProRes 2K 3840 x 2160 down sampled for 1920 x 1080 ProRes HD |
| Frame rate | LF Open Gate ProRes 4.5K: 0.75 - 60 fps LF Open Gate ARRIRAW 4.5K: 0.75 - 90 fps LF 16:9 ProRes HD: 0.75 - 60 fps LF 16:9 ProRes 2K: 0.75 - 60 fps LF 16:9 ProRes UHD: 0.75 - 60 fps LF 16:9 ARRIRAW UHD: 0.75 - 90 fps LF 2.39:1 ProRes 4.5K: 0.75 - 100 fps LF 2.39:1 ARRIRAW 4.5K: 0.75 - 150 fps |
| Base ISO | 800 ASA |
| Latitude | 14+ Stops |
| Bit Depth | 16 bit linear internal image processing |
| Recording Format | ARRIRAW and Quicktime / ProRes |
| Dimensions | 158 x 201 x 351 mm |
