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Please Note: Lens is NOT included. Lens to be purchased separately.
ARRI introduces a complete large-format system that meets and exceeds modern production requirements, deliveringunprecedented creative freedom. Based on a large-format 4K version of the ALEXA sensor, the system comprisesthe ALEXA LF camera, ARRI Signature Prime lenses, LPL lens mount and PL-to-LPL adapter. These system elementshave been designed to take fullest advantage of the enlarged sensor, while also offering compatibility with existinglenses, accessories and workflows. Much like ALEXA 65, ALEXA LF images are truly immersive, heightening emotion and intensifying character with an intimate, three-dimensional feel that draws the viewer in further.
Featuring a sensor slightly larger than full frame, ALEXA LF records native 4K with ARRI’s best overall image quality. This allowsfilmmakers to explore an immersive large-format aesthetic while retaining the sensor’s stunning capability for HDR andWCG workflows. Versatile recording formats, including efficient ProRes and uncompressed, unencrypted ARRI RAW up to 150 fps,provide all-encompassing artistic choices.
ALEXA LF has the largest sensor of any full-frame cinema camera on the market. Maintaining the ALEXA family’s optimal pixel size for highest overall image quality results in a 4448 x 3096 picture, which can be recorded in full using the LF Open Gate mode. An LF 16:9 mode maximizes lens options while meeting 4K deliverablestandards, and an LF 2.39:1 mode combines a cinematic widescreen image with high frame rates for sensuous slow motion. All sensor modes offer true 800 ASA sensitivity as well as reduced noise, providing the perfect canvas for modern, subtle lighting techniques.
A crucial element of this new system is the LPL lens mount, optimized for large-format sensors. A wider diameter and shorter flange focal depth allows the ARRI Signature Prime lenses and all future large-format optics to be small and lightweight, with a fast T-stop and pleasing bokeh—a combination of features that would not be possible within the confines of the PL lens mount. The LPL mount will also be available for other ARRI cameras such as the ALEXA Mini, so Signature Prime lenses can be used for both large format and Super 35. In addition, the LPL mount is being licensed to other lens and camera manufacturers.
Accompanying the ALEXA LF camera is ARRI’s large-format Signature Prime lens range, fitted with the ARRI LPL mount. While the Signature Primes exemplify state-of-the-art optical precision, they have been designed to render organic, emotionally engaging images, gently softening and texturizing the large format with natural skin tones and creamy bokeh. A fast T-stop of T1.8 facilitates shallow depth of field and the smooth focus fall-off gives subjects heightened presence in the frame.The ARRI Signature Prime range is the first cine lens series to feature machined magnesium lens barrels, making the optics incredibly lightweightand robust. They are also the first to incorporate ARRI’s next-generation LDS-2 Lens Data System, with high data rates and absolute encoders for fastinitializing. LDS-2 extends the possibilities of lens data and is being licensed to other lens and camera manufacturers.
Although the camera, lens mount and lenses are new, full compatibility with existing PL mount lenses and ALEXA accessories is a cornerstone of the system's design. A PL-to-LPL adapter offers backwards compatibility with all PL mount lenses, be they Super 35 or full frame. The adapter clips securely into the LPL lens mount without tools, allowing crews to rapidly switch between PL and LPL lenses on set. Cinematographers are therefore offered an unlimited lens choice, with complete lens metadata accessible from LDS-2, LDS-1 or /i lenses.
ALEXA LF is based on the proven, robust ALEXA camera design, so all existing accessories will work right out of the box.Since all other features and the user interface are the same as in the ALEXA SXT W—including the integrated wireless videotransmitter and the user interface—crews adapt quickly.
ALEXA LF offers the same tried-and-true, versatile workflows as other ALEXA cameras. Recording at various resolutions is possible in uncompressed,unencrypted ARRIRAW or fast, efficient ProRes. Existing ALEXA LUTs can be used with ALEXA LF and the entire range of ARRI workflow software toolswill support ALEXA large-format images. Lens metadata can be recorded from LDS-1, LDS-2 or /i capable lenses.
|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|