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Highlights
*In-camera ARRIRAW up to 120 fps
*In-camera ProRes or DNxHD up to 120 fps
*In-camera Filter Module IFM-1
* Available in 8 densities from ND 0.3 to ND 2.4
* Accurate infrared cut off
*4:3 sensor on all XT models
* Anamorphic de-squeeze license included
* High speed license included
*Lens metadata for efficient VFX
*Super silent XT Fan
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Manual
  • Accessories
  • Overview
  • Features
  • Specifications
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Arri Alexa EVF-1
Included in Package
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Arri BP-12
Included in Package
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Codex XR Drive 512GB
Included in Package
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Codex SxS Adapter
Included in Package
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Sony 64GB SxS Pro
(2) Included in Package
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Codex Capture Drive
Included in Package
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Anton Bauer Hytron140
(4) Included in Package
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Anton Bauer Quad
Included in Package
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Odyssey7Q
Day $350
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Codex Vault
Day $750
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Oconnor 2575
Day $125
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Arri LMB-5 4x5.6
Day $40
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Arri MB-20 4x5.6
Day $75
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Arri FF-4 Follow Focus
Day $45
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Arri Digi-Cine baseplate
Day $20
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Codex Dual Dock
Day $150
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The Original - Updated

The ALEXA XT (Xtended Technology) ads a number of significant improvements to the base model ALEXA: in-camera ARRIRAW recording, internal ND filtration, a 4:3 Super 35 sensor, LDS PL mount, new viewfinder mounting bracket, included anamorphic de-squeeze and high speed licenses as well as a new, super silent fan. These features will expand on the benefits that have already made ALEXA such an extraordinary success – highest overall image quality and lowest overall production cost through reliability, ergonomics and efficient workflows.

ALEXA Classic & ALEXA XT Family Features

EXCEPTIONAL IMAGE PERFORMANCE
  • Film-like, organic look
  • Wide exposure latitude
    • 14 stops over the entire EI range as measured with the ARRI Dynamic Range Test Chart
    • extended, clean highlights
    • extremely low noise floor
  • High sensitivity
    • base EI 800
    • adjustable from EI 160 to EI 3200
  • ARRI color science
    • natural color reproduction, especially for skin tones
    • excellent color separation
    • holds up very well when over or underexposed
  • Sharp, natural images for HD, 2K or 4K deliverables
EFFICIENT AND VERSATILE WORKFLOWS
  • Multiple output options
    • ARRIRAW (2), ProRes, DNxHD (1) and HD-SDI
    • Log C or Rec 709 gamma
    • ARRI Look Files for custom looks
    • metadata embedded in all file formats and outputs
  • ARRIRAW (2)
    • uncompressed, unencrypted raw sensor data
    • greatest image quality from ALEXA
    • greatest flexibility in post
    • best option for future-proof archiving
  • Apple ProRes
    • in-camera recording
    • all five Apple ProRes codecs
    • HD or 2K (2), 16:9 or 4:3
    • native Final Cut Pro support
  • DNxHD (1)
    • in-camera recording
    • MXF wrapped files (SMPTE standard compliant)
    • DNxHD 145 and DNxHD 220x codecs
    • native Avid Media Composer support
  • Online tools and downloadable apps

 

(1) DNxHD recording not possible with ALEXA XT cameras and ALEXA Classic cameras with the XR Module upgrade as of SUP 8.0 (ALEXA XT/XR); planned for SUP 9.0 (ALEXA XT/XR).
DNxHD is possible with ALEXA Classic cameras with SUP 7.x and SUP 8.x (ALEXA Classic).

(2) ProRes 2K and ARRIRAW are not available on ALEXA HD and ALEXA HD Plus

SIMPLE AND SAFE OPERATION
  • ARRI Product Quality
  • Rugged and reliable
    • sealed electronics compartment
    • unique cooling system
    • stable lens mount/sensor holder
  • Intuitive, easy to use controls
    • same interface on all ALEXA models
  • High quality electronic viewfinder
  • Powerful assistive displays, including
    • surround view
    • false color exposure check
    • smooth mode for better motion portrayal

    • peaking focus check
    • compare stored image with live image
    • RETURN IN video
  • Well balanced, ergonomic body design
  • Global ARRI service network
OPEN, FUTURE-PROOF ARCHITECTURE
  • Compatibility with industry standards
    • PL mount lenses
    • Apple ProRes, Avid DNxHD (1), HD-SDI and SxS PRO cards
    • Gold mount or V-lock on-board batteries
    • 12 or 24 V power inputs and outputs
    • support for ARRI and cmotion cvolution wireless lens control systems

    • ARRIRAW support through ARRI Partner Program and ARRIRAW SDK
  • Numerous upgrade options
    • upgradable in-camera recording module
    • upgradable electronics interface module
    • Exchangeable Lens Mount (ELM)
    • easy and powerful free software updates
    • new features through purchase of license
  • Long product cycles

(1) DNxHD recording not possible with XT cameras and ALEXA Classic cameras with the
XR Module upgrade as of SUP 8.0 (ALEXA XT/XR); planned for SUP 9.0 (ALEXA XT/XR).
DNxHD is possible with ALEXA Classic cameras with SUP 7.x and SUP 8.x (ALEXA Classic).

ALEXA XT Family Features

FEATURES FOR ALL ALEXA XT CAMERAS
  • Faster, lighter and more affordable ARRIRAW recording
    • in-camera ARRIRAW recording up to 120 fps onto XR Capture Drives
    • onto fast, rugged and reliable 512 GB XR Capture Drives
    • proven, efficient and versatile Codex ARRIRAW workflow
  • Faster and longer ProRes/DNxHD in-camera recording
    • ProRes (2) or DNxHD (1) high speed onto XR Capture Drives
    • in-camera ProRes or DNxHD up to 60 fps onto SxS PRO cards with SxS Adapter
    • ProRes 4:3 2K
    • proven, efficient and versatile ProRes/DNxHD workflow
  • 4:3 Super 35 sensor
    • ideal for anamorphic lenses
    • increased post flexibility for spherical lenses
  • Built-in ND filter option (2)
    • internal filter holder reduces weight, reflections and hassle
    • 8 full-spectrum neutral density (FSND) filters available from ND 0.3 to ND 2.4
    • neutral color balance at all densities
    • anti-reflective multi-coating maintains high contrast
    • precision polishing preserves image sharpness
  • Included anamorphic de-squeeze and high speed licenses
  • Built-in Lens Data System (LDS)
    • more efficient on-set and in post
    • Lens Data Archive (LDA) for use with non-LDS lenses
  • Integrated CDL capture
    • stores ASC Color Decision List in ARRIRAW metadata
  • Viewfinder Mounting Bracket VMB-3
    • improved operating comfort and flexibility
    • strong and rigid construction
    • special hard, low friction anodizing on all moving parts
    • 15 mm lightweight rods hold viewfinder mount
    • built-in bubble level
  • Super silent ALEXA XT fan
  • Quick switch BNC connectors
    • can be exchanged without camera disassembly

 

(1) DNxHD recording not possible with ALEXA XT cameras and ALEXA Classic cameras with the XR Module upgrade as of SUP 8.0 (ALEXA XT/XR); planned for SUP 9.0 (ALEXA XT/XR).
DNxHD is possible with ALEXA Classic cameras with SUP 7.x and SUP 8.x (ALEXA Classic).

(2) SUP 8.0 (ALEXA XT/XR) supports ARRIRAW 16:9 and ProRes 422 16:9 HD
at up to 120 fps, ProRes 4444 16:9 HD up to 60 fps (with 64 GB SxS PRO cards).
SUP 9.0 (ALEXA XT/XR) is planned to support ProRes 4444 16:9 HD and DNxHD 444 at frame rates above 60 fps. 

ALEXA XT UNIQUE FEATURES
  • Smallest, lightest ALEXA XT camera
  • Most affordable ALEXA XT camera
  • Built-in ND filter option
    • internal filter holder reduces weight, reflections and hassle
    • 8 full-spectrum neutral density (FSND) filters available from ND 0.3 to ND 2.4
    • neutral color balance at all densities
    • anti-reflective multi-coating maintains high contrast

    • precision polishing preserves image sharpness 

ALEXA XT Features

The smallest and most affordable ALEXA XT camera
While sharing all the features of the ALEXA XT family like in-camera ARRIRAW recording, built in ND filtration, a 4:3 sensor, the Lens Data System, the ASC CDL capture capability, a new Viewfinder Mounting Bracket and a super-silent fan, the ALEXA XT is the smallest and most affordable of the bunch. This camera is ideal for all those who do not require wireless remote control (ALEXA XT Plus), a separate head/body design (ALEXA M) or an optical viewfinder with a rotating mirror shutter (ALEXA Studio), but still need a camera that delivers exceptional image performance, efficient and versatile workflows, simple and safe operation and an open, future-proof architecture.

ALEXA XT Family Features 

Faster, lighter and more affordable ARRIRAW
All ALEXA XT cameras come with the new XR Module (Extended Recording), a side panel that was co-developed with Codex and that replaces the previous SxS Module. The XR Module allows in-camera ARRIRAW recording up to 120 fps onto exceptionally fast and rugged 512 GB XR Capture Drives. This not only makes for a smaller, lighter and more affordable camera package, it also simplifies setup and operation while avoiding unnecessary cabling. The result is an even faster and more reliable way to record ARRIRAW, ALEXA's highest quality image output.

Once removed from the camera, the XR Capture Drive offers a number of different paths into post for every budget and time schedule demand, using the proven Codex workflow. First, the small and affordable Single Dock USB3 allows safe copying of data to a Retina MacBook Pro. Second, the Dual Dock can make clones of XR Capture Drives and connect to a Mac Pro via SAS (Serial Attached SCSI) for high speed copying. The included software provides all features for an efficient digital lab. And third, the Codex Vault is a modular, rugged and complete solution for copying, archiving, metadata management, reporting or dailies creation with the greatest ease and highest speed. 

Faster and longer ProRes/DNxHD in-camera recording 
In addition to ARRIRAW it is also possible to capture ProRes or DNxHD (1) to an XR Capture Drive for significantly longer recording times as well as ProRes 4444 recording at 120 fps. ProRes 4444 at 24 fps can be recorded for a total time of 107 minutes. And recording onto SxS PRO cards is also possible: with an SxS Adapter it is possible to record ProRes or DNxHD to a single SxS PRO card, thus protecting the inventory of existing cards.

As an extra feature, the black protective top cover of the XR Module can be replaced with red, green, blue, yellow or white top covers to identify A, B, C, D, E and F camera units. 

(1) DNxHD recording not possible with SUP 8.0, planned for SUP 9.0

 

High quality internal full-spectrum ND filters
The In-camera Filter Module IFM-1 allows a rating at the base sensitivity of EI 800 without the need for external Neutral Density (ND) filters, even in bright sunlight. Filtering behind the lens rather than in front saves time and reduces weight, reflections and complexity. In addition it decreases narcissism, which is an unwanted reflection between the last lens element and the sensor and protects the sensor from dirt contamination during lens changes. 

 

The FSND (Full Spectrum Neutral Density) filters used with the IFM-1 are based on a number of high-tech manufacturing methods that are very different from common external filters. A neutral color balance at all densities is achieved through a broadband absorptive coating that attenuates the full spectrum. To maintain a high contrast, an anti-reflective multi-coating reduces internal reflections. A sharp image is assured through a base of water-white optical glass that is precision polished to create perfectly parallel surfaces. While all ALEXA XT cameras come with the IFM filter holder installed, the FSND filters themselves are available separately in 8 densities from ND 0.3 to ND 2.4 plus an optical clear. Out of the box the ALEXA XT cameras can be used without a filter, and when FSND filters should be used, a IFM shim has to be installed in the lens mount.

True anamorphic with a 4:3 sensor
For the most effective use of anamorphic lenses, each ALEXA XT model is equipped with a 4:3 sensor of the same size and shape as a Super 35 mm film frame. This is perfect for the 1.195:1 aspect ratio image area needed by anamorphic lenses. An aspect ratio of 1.195:1 results from the anamorphic aspect ratio 2.39:1 divided by the anamorphic horizontal squeeze factor of 2. A 4:3 sensor is crucial for delivering the unique and cinematic widescreen look that can trace its origins back to the CinemaScope films of the 1950s. It is a look that has long been appreciated by Lincoln 1cinematographers, directors and the viewing public. An anamorphic de-squeeze license is included with all ALEXA XT cameras, as is a high speed license for filming at up to 120 fps. The 4:3 sensor is also useful for non-anamorphic productions as it permits significant reframing of the image in post, similar to shooting 4-perforation 35 mm.

 

 

More efficient VFX through lens metadata
Lens metadata is invaluable for efficient working on the set and for a speedy VFX post workflow, which is why all ALEXA XT models are equipped with an LDS lens mount and is why all ALEXA XT models insert a plethora of metadata into all recording and output formats.

On the set, streaming lens metadata is used for an overlay in the ALEXA display, viewfinder or MON OUT image. In addition, it is used by the Wireless Compact Unit WCU-4 for an easy to use graphical lens display and. At the same time, the HD-SDI image carries streaming lens metadata (as raw encoder pulses and as interpreted lens data) which can be displayed on some monitors or used for real-time virtual set applications.

Compositing in post is greatly sped up through the use of lens metadata carried inside the ARRIRAW, ProRes or DNxHD files. The lens metadata allows to automatically match the computer graphic (CG) images to the images taken with the real lens, a process that used to take a long time of manual tweaking in the past. In the example below, a Lincoln car was inserted through computer graphics into an image that was shot with a stunt car. The lens metadata was used to exactly duplicate the focus, depth of field, perspective and minor distortions introduced by the real lens.




Over 41 ARRI lens models have LDS built-in, including the ARR/Zeiss Master Anamorphics, ARRI/Zeiss Master Primes, ARRI/Zeiss Master Macro 100, ARRI/Zeiss LDS Ultra Primes, ARRI/Zeiss Master Zoom 16.5-110, ARRI/Fujinon Alura Lightweight Zoom 15.5-45 and ARRI/Fujinon Alura Lightweight Zoom 30-80. Support for the Cooke /i system is in the works. For all other lenses it is possible to gather lens metadata by using an ARRI lens motor and a lens table stored in the camera (Lens Data Archive).




Safely carry CDL color correction metadata into post
An increasing number of productions are setting up on-set color correction systems so the cinematographer can create and monitor a pre-grade of the footage. The resulting ASC CDL (American Society of Cinematographers Color Decision List) can be automatically transferred to the ALEXA XT cameras and stored as ARRIRAW metadata, for fast and convenient retrieval in post.

 

Viewfinder Mounting Bracket VMB-3
To provide maximum comfort for the operator, the new Viewfinder Mounting Bracket VMB-3 has a much stronger and more rigid design, partially achieved through the use of two 15 mm lightweight rods. These rods also facilitate rapid changes in camera support, i.e. from a tripod to a crane or Steadicam, since accessories such as lens motors or follow focus units can be hung from them rather than cluttering up the base plate. A special anodizing process is used on all moving parts for a very hard yet low-friction surface and a bubble level allows for speedy leveling of the camera. 

 

Also available as a separate accessory is the new Viewfinder Extension Bracket VEB-3, with a more sturdy design and a fold-out arm that holds the viewfinder securely in place when moving the camera.

 

Super Silent ALEXA XT Fan
ALEXA cameras are already among the quietest digital cameras, but an even quieter fan has become available and ARRI has incorporated this new fan into the ALEXA XT models, providing an extra safety margin in very quiet or hot environments. The new fan can be identified by an orange dot on top.

 



ALEXA Classic and ALEXA XT Family Features

Exceptional Image Performance
All ALEXA cameras provide the best looking digital image with the least amount of fuss. They all have the same high end optical low pass filter, a custom made CMOS sensor and custom electronics and processing software. These components are carefully designed to produce images with the organic look and feel of film. The sensor provides an unequalled exposure latitude of 14 stops with special consideration given to highlight treatment. Creating a good looking roll-off in the highlights is probably one of the most difficult tasks for any sensor designer and we have spent enormous resources at insuring exceptional highlight handling. ALEXA's high sensitivity and its ability to hold up very well even when extremely under or overexposed make it very easy to work with. ALEXA’s color processing was developed by our own color scientists (who are the same people that have been working on the ARRILASER and ARRISCAN, so are intimately familiar with both film and digital color science) to render clean and natural colors, especially noticeable in ALEXAs great looking skin tones.


Efficient and Versatile Workflows
ALEXA represents the most efficient and versatile method to capture and then transport images, audio and metadata through the production process. This is achieved with a multitude of output options, support for the native codecs of the most popular non-linear editors, complete metadata and integrated color management. So disregarding if you want to shoot a low budget TV series or Martin Scorsese’s next big Hollywood feature, you can configure an ALEXA for the task at hand. This also make rentals happy, who can use the same product for many different customer demands.

Simple and Safe Operation
We know what it is like to try to change frame rate and shutter angle at 4:00 in the morning in the rain after a long night shoot. We know that a camera needs to be very simple to operate, and it needs to make sure that you get a good image, no matter what. With ALEXA we have developed a user interface that is easy to learn and quick to operate. And the same interface is used on all models of ALEXA, with the same menu, buttons, etc., so there is no learning curve when using another model ALEXA. The hardware of the camera is designed for the best and most ergonomic use on the set, including the built-in shoulder cut-out, large numbers of accessories like the low mode set or the Remote Control Unit RCU-4, down to little details like differently shaped extrusions (eyebrows) above some buttons so the operator can feel the button’s position even from the other side of the camera or shooting in low light.

ALEXA cameras are part of a long heritage of cameras from ARRI, and we are very familiar with the sometimes horrid conditions our cameras have to endure in the field. So ALEXAs are built rugged and reliable with a sealed electronics compartment, a unique cooling system and the most stable lens/sensor mount that German engineering could devise.

The camera’s electronics are housed in a sealed compartment in the center of the body. The heat generated by the sensor and the electronics is transported via heat pipes to a radiator located in a ventilation shaft at the back of the camera. A single, slow running silent fan cools the radiator. If need be, the fan can be easily exchanged. This system ensures effective, active cooling of the sensor and processing boards even in the hottest climates. At the same time it protects the electronics, thereby rendering the camera splash and dust proof.

To further improve the legendary stability of the ARRI lens mount, ALEXA is equipped with a novel lens and sensor mount design. The stainless steel lens mount is attached to a stainless steel distance barrel, which itself is attached to the sensor mount, which also holds the sensor board. The whole unit is then attached to the camera body. By creating a fixed link between lens and sensor (all the orange parts in the second drawing), a super stable flange focal depth is ensured - even if strong mechanical influences are applied to the lens mount, such as when a heavy zoom lens is not properly supported. Using stainless steel ensures minimum material expansion or contraction during temperature changes.


Open, future-proof architecture
We have worked closely with a number of innovative companies such as Apple, Avid, FUJINON, ZEISS and others to integrate their technologies. Thus ALEXA is compatible with many existing industry standards and with lenses, accessories and post production tools that are already well established all over the world, including Apple’s ProRes, Avid’s DNxHD, the HD-SDI standard, Gold or V-mount on-board batteries, the cmotion lens control system and both 12 and 24V accessory power outputs. The result is a future-proof system based on an open architecture; the result is simply the most complete and powerful digital production system ever built.


To protect our customers’ investment in ALEXA, four major components are specifically designed to allow an easy upgrade and to add new features in order to extend its useful life. First, taking into account the rapid rate of change in storage technologies, the in-camera recording module is removable, featuring an SxS Module for ALEXA Classic cameras (which can be exchanged for an XR Module) or an XR Module for ALEXA XT cameras. Second, the camera control electronics, which comprise the whole right side of the camera, can be removed and replaced with an upgraded electronics with advanced features (like the Plus upgrade). Third, the Exchangeable Lens Mount (ELM) system allows the use of PL or Panavision lenses, further expanding creative options. And finally, the camera’s software is designed in such a way that it can be quickly and easily upgraded with our free Software Upgrade Packets to provide new and exiting features like ProRes 2K or ProRes 4:3 in-camera recording.

ALEXA Electronic Viewfinder EVF-1
This viewfinder was specifically designed to meet the needs of professional camera operators by offering an extremely low latency image display, high image quality, accurate color reproduction and a number of features inherited from our optical viewfinders, including a peripheral viewing area (surround view).

It is critical to the camera operator that the action in the viewfinder can be seen almost at the same time as the action in front of the camera. The extremely fast image display of the EVF-1 has been made possible through the creation of a proprietary high speed connection between the viewfinder and the camera, as well as a shared image processing architecture that maximizes the processing power of both camera and viewfinder. The ALEXA EVF-1 is unique with its image delay of under one frame.

A stable, accurate and high quality image is important for the camera operator. The EVF-1 image exhibits high resolution, high contrast, low distortion and an evenly illuminated viewing area. All this has been made possible through a state-of-the-art F-LCOS (Ferroelectric Liquid Crystal On Silicon) micro display with 1280 x 768 pixel resolution, a high screen refresh rate and an ARRI optical design that employs the highest quality coated glass optics. Reliable contrast and color reproduction at all temperatures are assured through a careful thermal stabilization of both the FLCOS display and the ARRI custom LED light engine. 


The EVF-1 has not only been developed to provide the best possible image, but is also specifically designed to fit the ergonomic needs of the operator. Even when using a matte box on a short prime lens, the compact dimensions of the finder guarantee that the eyepiece can be adjusted to a comfortable position for shoulder operation. The small, self-contained unit is easily mounted in different positions: on the side for handheld, or further back through a telescoping extension for use with a geared head.

Straightforward operation is assured through a plethora of assistive displays in the viewfinder (and on the MON OUT as well), including: frame lines, surround view, camera status, false color exposure check, peaking focus check, compare stored image with live image, RETURN IN video and optional anamorphic de-squeeze (license key required on some ALEXA Classic cameras). A number of ergonomically placed buttons allow access to frequently used functions such as zoom and exposure assist. The viewfinder’s settings, as well as basic camera settings, can be changed by the operator directly on the EVF-1.

Showing their heritage, ALEXA and the EVF-1 have been designed to provide some features that previously have only been available through optical viewfinders. Most important for the operator is the fact that the camera’s sensor is slightly oversized to provide an extra area around the primary image in the viewfinder. This allows lighting stands, microphones, etc. to be spotted before ruining the shot. Additionally, the size of the image in the EVF-1 has been chosen to equal that of the image in the ARRIFLEX 235’s optical viewfinder.

Camera Type 35 format film-style digital camera with an electronic viewfinder, a 4:3/16:9 switchable active sensor area, built-in filter holder, Lens Data System, integrated shoulder arch and receptacles for 15 mm lightweight rods
Sensor 35 format ALEV III CMOS sensor with Dual Gain Architecture (DGA) and Bayer pattern color filter array.
Photo Sites 16:9 2880 x 1620 used for ARRIRAW
2880 x 1620 down sampled to 1920 x 1080 for HD-SDI, ProRes HD and DNxHD HD
2868 x 1612 down sampled to 2048 x 1152 for ProRes 2K
Photo Sites 4:3 2880 x 2160 used for ARRIRAW
2868 x 2150 down sampled to 2048 x 1536 for ProRes 2K
For a pdf with details about the recording areas, surround views and framelines click here
Operating Modes 16:9 or 4:3 sensor mode. Switching takes approx. 60 seconds. 4:3 output only available for ARRIRAW and ProRes 2K recording.
Regular or High Speed mode. Switching takes approx. 40 seconds. High Speed mode is only available for 16:9 sensor mode.
Frame Rates 16:9 0.75 – 120 fps
60 fps max when recording 2K ProRes (16:9 and 4:3).
40 fps max when recording ProRes 4444 onto 32 GB SxS PRO cards.
All speeds adjustable with 1/1000 fps precision. To record above 60 fps, the camera needs to be switched to high speed mode.
Frame Rates 4:3 0.75 – 48 fps
40 fps max when recording any 4:2:2 ProRes codec onto 32 GB SxS PRO cards.
30 fps max when recording ProRes 4444 onto 32GB SxS PRO cards.
All speeds adjustable with 1/1000 fps precision.
Shutter Electronic rolling shutter, 5.0º - 358.0º up to 60 fps; 5.0° to 356° above 60 fps. Shutter angle adjustable with 1/10 degree precision.
Filter Built-in Internal Filter Module (IFM-1) filter holder. Accepts one of eight Full Spectrum Neutral Density (FSND) filters, manual insertion/removal.
Exposure Latitude 14 stops for all sensitivity settings from EI 160 to EI 3200, as measured with the ARRI Dynamic Range Test Chart (DRTC).
For a graphic of how the exposure latitude shifts at different EIs, click here
Exposure Index
Values behind the exposure index are the number of stops above and below 18% grey. These values are for Log C. Rec 709 and DCI P3 are the same except for 0.5 stops fewer in the low end at EI 160, 0.4 stops fewer in the low end at EI 200 and 0.2 stops fewer in the low end at EI 400.
White Balance Presets for 3200 (tungsten), 4300 (fluorescent), 5600 (daylight) and 7000 (daylight cool). Automatic calculation or manual white balance for 2000 to 11000 Kelvin, adjustable in 100 K steps
Color Correction While white balance changes the red/blue hue of the image, color correction changes green/magenta. Adjustable range from -8 to +8 CC. 1 CC corresponds to 035 Kodak CC values or 1/8 Rosco values.
Sound Level Under 19 db(A) while recording ProRes @ 24 fps and ≤ +30° Celsius (≤ +86° Fahrenheit) with lens attached and fan mode set to 'Regular', measured 1 m/3 feet in front of the lens. Silent operation at higher temperatures possible with fan mode set to 'Rec low'.
Power In Three possible inputs: BAT connector, optional battery adapter back or optional battery adapter top. All inputs accept 10.5 to 34 V DC on all inputs. Approx. 90 W power draw for camera and EVF-1 in typical use recording ProRes at 24 fps to an SxS PRO card, without accessories.
Power Out 12 V connector: limited to 12 V, up to 2.2 A. RS, EXT and ETHERNET: input below 24 V is regulated up to 24 V; above 24 V: input voltage = output voltage. RS and EXT connectors combined are limited to 2.2 A. ETHERNET is limited to 1.2 A. Maximum power draw is also limited by the power source.
Weight ALEXA XT body with XR Module: 6.6 kg/14.5 lbs.
ALEXA XT body with XR Module, electronic viewfinder and handle: 8.0 kg/17.6 lbs.
Dimensions Length: 332 mm/12.95”, width: 161 mm/6.33”, height: 158 mm/6.22”
Dimensional drawings available at www.arri.com/alexa/downloads
Environmental -20° C to +45° C (-4° F to +113° F) @ 95% humidity max, non-condensing. Splash and dust proof through sealed electronics. System cooling through radiator/single fan.
Lens Mount ARRI Exchangeable Lens Mount (ELM); ships with Lens Adapter PL Mount with LDS contacts, 54 mm stainless steel PL mount, Super 35 centered. 52.00 mm nominal flange focal depth without FSND filters.
Viewfinder Low latency (≤1 frame delay) electronic color viewfinder ARRI EVF-1 with 1280 x 784 F-LCOS micro display (image: 1280 x 720, status bars: 1280 x 32 above and 1280 x 32 below image) and ARRI LED illumination, both temperature controlled. Image can be flipped for use of viewfinder on camera left or right. Viewfinder Mounting Bracket allows movement of viewfinder forward/backwards, left/right, up/down, 360 degree rotation and placement on camera left or right. EVF-1 controls: viewfinder and basic camera settings, ZOOM button (2.25x pixel to pixel magnification), EXP button (false color exposure check) and jog wheel.
Assistive Displays For EVF-1 and MON OUT: frame lines, surround view, camera status, false color exposure check, peaking focus check, compare stored image with live image, RETURN IN video and anamorphic de-squeeze. For MON OUT only: Reel & clip number.
For a graphic of which false colors indicate which exposure level, click here
Control Camera right: Main user interface with a 3” transflective 400 x 240 pixel LCD color screen, illuminated buttons, button lock and jog wheel. Camera left: Operator interface with illuminated buttons and button lock. Optional accessory RCU-4 for remote control via camera ETHERNET connector.
In-camera Recording uncompressed and unencrypted ARRIRAW, compressed and unencrypted QuickTime/ProRes or compressed and unencrypted MXF/DNxHD (1) recording onto XR Capture Drives. With SxS Adapter: QuickTime/ProRes or MXF/DNxHD (1) onto SxS PRO cards. All formats include embedded audio, timecode and metadata.
Recording Outputs 2x 1.5G or 3G REC OUT BNC connectors for uncompressed 1920 x 1080 4:4:4 RGB or 4:2:2 YCbCr HD video at 23.976, 24, 25, 29.97, 30, 50, 59.94, or 60 fps. Recording other speeds requires a recorder with Variflag support. Legal or extended range signal mapping. Embedded audio, time code, metadata and recording flag. ALEXA XT models do not offer ARRIRAW T-Link output.
Monitor Output 1x MON OUT BNC connector for uncompressed 1.5 G HD-SDI video: 1920 x 1080 (16:9), 4:2:2 YCbCr; legal range HD video at 23.976, 24, 25, 29.97, or 30 fps. Embedded audio, time code, metadata and recording flag.
Image Processing 16 bit linear internal image processing. Target color spaces for ProRes, DNxHD (1), REC OUT and MON OUT: Log C and Rec 709. For Rec 709, a customized look can be applied during record and playback with ARRI Look Files. Optional horizontal image mirroring.
Synchronization Master/Slave mode for precision sync of settings, sensor, processing, HD-SDI outputs and QuickTime/ProRes or MXF/DNxHD recording for 3D applications.
Playback Playback of ARRIRAW, ProRes or DNxHD (1) from XR Capture Drive or playback of ProRes or DNxHD (1) from SxS PRO card visible on EVF-1, MON OUT and REC OUT. Playback audio available over headphone jack and embedded in the MON OUT and REC OUT signal.
Audio 1x XLR 5 pin AUDIO IN for 2 channel, line level, balanced audio. 24 bit/48 kHz A/D conversion. Uncompressed PCM audio recording to ARRIRAW, ProRes, DNxHD (1) and embedded in all HD-SDI outputs. Only available with same project/sensor speed at 23.976, 24, 25, 29.97 and 30 fps. Max of 2.5 dBm output from AUDIO OUT headphones connector.
Connectors 1x media slot for XR Capture Dive or SxS adapter
2x BNC recording out HD-SDI, 1.5G/3G (REC OUT 1 and REC OUT 2)
1x BNC monitoring out HD-SDI, 1.5G (MON OUT)
1x XLR 5-pin analog audio in (AUDIO IN)
1x BNC return video in HD-SDI, 1.5G (RET/SYNC IN)
1x LEMO 16-pin external accessory interface (EXT)
1x Fischer 2-pin 24 V power in (BAT)
2x Fischer 3-pin 24 V remote start and accessory power out (RS)
1x LEMO 2-pin 12 V accessory power out (12 V)
1x LEMO 5-pin timecode in/out (TC)
1x TRS 3.5 mm headphone mini stereo jack (AUDIO OUT)
1x custom LEMO 16-pin electronic viewfinder (EVF)
1x custom LEMO 10-pin Ethernet with 24 V power (ETHERNET)
BNC connectors designed for fast exchange without camera disassembly. These connectors require a special tool.
SD Card For importing and storing ARRI Look Files, camera set up files, frame line files, feature license keys. Stores captured stills from the REC OUT image path during Regular Speed (not High Speed) in TIFF (.tif, 16 bit), DPX (.dpx, 10 bit) or JPEG (.jpg, 8 bit) format. Stores log files. Also used for installing Software Update Packets (SUPs).
Upgrades The Storage Interface Module can be exchanged for future storage modules. The Electronics Interface Module (basic and Plus version) can be exchanged for future control electronics. Exchangeable Lens Mount (ELM) allows other lenses beyond PL mount lenses to be used. Simple camera software updates via free of charge Software Update Packets (SUPs) and payable license keys – Anamorphic De-squeeze (included), High Speed (included) and DNxHD (not available for SUP 8.0 at this time).
  (1) DNxHD recording not possible with SUP 8.0 (ALEXA XT/XR), planned for SUP 9.0 (ALEXA XT/XR).
  Note: Technical data based on Software Update Packet SUP 8.0 (ALEXA XT/XR). All data subject to change without notice.