ARRI ALEXA LF Large Format, High speed, Fully featured Camera

ARRI ALEXA LF Large Format, High speed, Fully featured Camera

SKU: ALEXA LF Category:


ARRI ALEXA LF Large Format Camera

ALEXA LF is a classic, studio-style camera that builds on the legacy of all ALEXA models before it. Able to record multiple formats to SXR Capture Drives or SxS PRO+ 256 GB cards, including uncompressed ARRIRAW at up to 150 fps for beautiful slow motion, ALEXA LF offers a full feature set and exceptional on-set versatility.

With a built-in wireless video transmitter, as well as ARRI ECS and WiFi radios, ALEXA LF needs fewer external boxes and cables than other studio cameras, allowing for less cluttered camera configurations and faster setup times. The three independent MON OUT outputs accommodate a wide range of on-set monitoring options.

A high-quality viewfinder for critical focusing


Robust, reliable, and ergonomically designed, the EVF-2 viewfinder was specially developed for ALEXA LF. The OLED display offers full HD resolution and high contrast, improving the operator’s ability to judge focus, dynamic range, and color. A glass eyepiece, based on the proven ARRICAM design, delivers a clean, distortion-free image through its wide exit pupil, allowing freedom of movement for the operator. The EVF-2 also includes ARRI’s latest color science, which gives a more accurate color rendition, a better match to on-set monitors and a stable color balance.

Versatile recording formats

The ALEXA large-format camera system uses the largest sensor of any full-frame cinema camera on the market. Maintaining the ALEXA family’s optimal photosite size for the best overall image quality results in a 4448 x 3096 picture, which can be recorded in full using LF Open Gate recording formats. Various LF 16:9 formats provide a smaller image circle to maximize lens options while meeting 4K deliverable standards, and an LF 2.39:1 mode combines a cinematic widescreen image with high frame rates.

Compatibility of Signature Prime lenses

ARRI ALEXA LF Digital Camera

ARRI Signature Prime lenses are equipped with the LPL (Large Positive Locking) lens mount, a key element of ARRI’s large-format camera system. The wider diameter and shorter flange focal depth allow LPL lenses to be small and lightweight, with a fast T-stop and pleasing bokeh—a combination of features that would not be possible with the old PL lens mount.

ARRI shares LPL specifications openly and free of charge across the industry, to establish the LPL lens mount as the new standard interface between cameras and lenses. ARRI LPL lens mounts are available for ALEXA 65, ALEXA LF, ALEXA Mini LF, ALEXA Classic/XT/SXT, ALEXA Mini, and AMIRA cameras. In addition, third parties already offer LPL lens mounts for cameras, director’s viewfinders, and lens testing tools, so ARRI Signature Primes and other LPL lenses can be universally used.



Camera Type Large Format (LF) digital camera with electronic viewfinder EVF-1 and built-in radios for ARRI Wireless Remote System, ARRI Wireless Video System and WiFi
Compatibility All current ARRI ALEXA accessories, LPL lenses and PL lenses with PL-to-LPL adapter
Sensor Mode LF Open Gate 36.70 x 25.54 mm
4448 x 3096, ø 44.71 mm
ARRIRAW: 0.75 – 90 fps
ProRes: 0.75 – up to 60 fps
Sensor Mode LF 16:9 31.68 x 17.82 mm
3840 x 2160, ø 36.35 mm
ARRIRAW: 0.75 – 90 fps
ProRes: 0.75 – 60 fps
Sensor Mode LF 2.39:1 36.70 x 15.31 mm
4448 x 1856, ø 39.76 mm
ARRIRAW: 0.75 – 150 fps
ProRes: 0.75 – up to 100 fps
Shutter Electronic rolling shutter, 5.0º – 358.0º
Internal ND Filter One of 8 available Large Format Full Spectrum Neutral Density (LF FSND) filters can be inserted manually in front of the sensor (ND 0.3 to ND 2.4)
Exposure Latitude 14+ stops
Exposure Index EI 800
Sound Level ≤ 20 db(A)
Power In 11.5 to 34 V DC
Power Out 4x RS (24 V), 1x 12V (12 V), 1x EXT (24 V), 1x ETH (24 V)
Weight (body + LPL) 7.8 kg/17.2 lbs.
Dimensions (body + LPL) L 364 mm/14.33”
W 201 mm/7.91”
H 158 mm/6.22”
Operating Temperature -20° C to +45° C (-4° F to +113° F)
Lens Mount 62 mm LPL mount (LDS-1, LDS-2 & /i)
Flange Focal Depth 44 mm
Recording Codecs ARRIRAW (.ari)
QuickTime/ProRes (422, 422 HQ, 4444 & 4444 XQ)
Recording Resolutions 4.5K (sensor modes LF Open Gate and LF 2.39:1)
UHD (sensor mode LF 16:9)
2K (in-camera downscale in sensor mode LF 16:9) HD (in-camera downscale in sensor mode LF 16:9)
Supported Media SxS PRO+ 256 GB (ProRes)
SXR Capture Drives 1 TB (ARRIRAW or ProRes)
SXR Capture Drives 2 TB (ARRIRAW or ProRes)
Monitor Outputs MON OUT 1a, 1b and 2: SDI 6G UHD or SDI 1.5G HD up to 30 fps
MON OUT 3: SDI 1.5 G HD up to 30 fps, also wireless video
Anamorphic de-squeeze for 1.25x, 1.3x, 1.5x, 2x lens squeeze ratios
Image Processing 16 bit linear in ALEXA Wide Gamut/Log C color space
Target output color spaces: Log C, Rec 709 or Rec 2020
Supports ARRI Look File (ALF-2) with CDL values and a 3D LUT
3D LUTs available for SDR, HDR PQ and HDR HLG
Playback ARRIRAW or ProRes
Audio 1x XLR 5 pin AUDIO IN for 2 channels, line level


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