ALEXA SXT Plus

  • Overview
  • Features
  • Technical Data

The family got bigger. And smaller.

Compact, lightweight and self-contained, the ARRI ALEXA Mini is a versatile additional tool in the ALEXA camera range. Crews will find that the ALEXA Mini perfectly complements their ALEXA shooting kit, eliminating the complications of working with third-party cameras for specialized shots and keeping everything within a single system that is trusted all over the world.

ALEXA Mini Features

  • Versatile additional tool in the ALEXA camera range
  • Exciting variety of application areas
  • Super-lightweight carbon body
  • Exchangeable lens mounts
  • ALEXA sensor and image quality with internal 4:3 & ARRIRAW recording
  • Integrated lens motor control and ND filters
  • Perfect for gimbals and multicopters
  • Future-proof technology with 4K UHD, HDR & HFR recording

ALEXA Mini Features

Complementing the ALEXA range.
Compact, lightweight and self-contained, the ARRI ALEXA Mini is a versatile additional tool in the ALEXA camera range. Crews will find that the ALEXA Mini perfectly complements their ALEXA shooting kit, eliminating the complications of working with third-party cameras for specialized shots and keeping everything within a single system that is trusted all over the world.



Strength and agility through state-of-the-art materials
To maintain ARRI’s famously rugged build quality in a small and lightweight camera, a number of unique design solutions have been incorporated. These include highly integrated and sealed electronics, a lightweight carbon housing and a solid titanium PL mount that connects directly with the new internal sensor mount – also made of titanium – to ensure a super-stable flange focal distance, even when using large lenses. Nimble in use and hardy on set, the ALEXA Mini is a go-anywhere tool, easy to transport in backpacks or as carry-on luggage.



Versatile mounting and shooting options
The ALEXA Mini can be operated in a number of ways: by wireless remote control, as a normal camera with the ARRI MVF-1 multi viewfinder attached, or with an on-board monitor and controlled via the user button interface on the camera body. Light enough to be comfortably held at arm’s length in a hand rig, its compact size and extremely quiet operation also make it ideal for tight shooting conditions.



The symmetrical design permits filming in any orientation, including upside-down and in portrait mode, while multiple accessory points enable highly creative mounting solutions. In addition, the ALEXA Mini’s interchangeable lens mount can be replaced with any of those designed for the ARRI AMIRA, allowing the use of B4 video and EF mount stills lenses.



Uncompromised image quality for specialized shots
The overwhelming advantage of the ALEXA Mini is that it marries such a compact and lightweight form factor with the same unparalleled image quality that has made the ARRI ALEXA system a gold standard for the industry. Combine the Mini with any other ALEXA camera and you will have perfectly matched images, even on anamorphic productions – thanks to the 4:3 sensor and automatic de‑squeeze function. Workflows will also be identical, with options to record ProRes or uncompressed ARRIRAW either in-camera to CFast 2.0 cards or to a specially-designed external Codex recorder.




Save time on set
With the ALEXA Mini, no extra time need be spent on set configuring third-party cameras previously required for specialized shots, or on wrangling the image files coming out of them. Multi-camera setups such as 360° plate shots will be made simpler and faster by the external Codex recorder, which can record image streams from up to four ALEXA Minis simultaneously. The camera’s maximum frame rate of 200 fps means it can also be used for stunning slow-motion cinematography, saving further time and money on set by doing away with the need for a separate high-speed camera.





Save time in post
In the past, productions combining small cameras from other manufacturers with an ARRI ALEXA shooting kit have encountered time-consuming difficulties in the grade, trying to match images from those cameras to ALEXA’s famously natural colorimetry and pleasing skin tones. With the ALEXA Mini these difficulties are eliminated because all images come from the same sensor and share the same color space. The ability to use CDLs and 3D LUTs in-camera for on-set color management will also reduce time and money spent in post.



Integrated lens motor control and ND filters, perfect for gimbals and multicopters
The ALEXA Mini’s camera body has been designed with new-generation brushless gimbals, multicopters and other specialized rigs in mind. It is compact enough in the lens direction to allow the use of standard PL mount lenses even on lightweight and space-constrained rigs, such as gyro-stabilized aerial systems. The camera’s superb low-light performance makes it perfect for underwater work, and dedicated underwater housings are currently being developed by leading manufacturers.





Greater efficiency through integrated functions
An integrated lens motor controller allows new active lens motors to be connected directly to the titanium PL mount, so focus, iris and zoom settings can be controlled from ARRI hand units without an additional external box. Further operational settings can be made remotely when working with the ARRI WCU-4 hand unit.





Built-in Wi-Fi connectivity facilitates remote control of camera functions from iOS or Android devices, with no need for a special app.
The motorized and remotely-controllable internal ND filters permit rapid responses to changing light conditions, and help keep clutter around the camera to a minimum.





Cost-saving camera and lens metadata
Integrated ARRI Lens Data System (LDS) technology brings the added value of frame‑accurate metadata about focus, iris and zoom settings. With these lens settings and exact depth‑of‑field displayed live on wireless hand units, precise adjustments can be made during a shot. The data also allows lens mapping to pre‑marked focus rings and reduces the time and expense involved in achieving complex visual effects in post.





Future-proof technology with 4K UHD, HDR and HFR recording




Unsurpassed overall image quality
Like the ARRI AMIRA, the ALEXA Mini can record 4K UHD ProRes images, facilitating real-time 4K UHD output and simple pipelines for high-resolution deliverables. More important than this, however, is the fact that the Mini and all other ARRI cameras with the ALEV III sensor offer unrivalled overall image quality by focusing not just on spatial resolution, but also on other image quality parameters such as dynamic range.



London's New Year's Eve fireworks captured in Ultra High Definition and High Dynamic Range with the ARRI ALEV III sensor. Courtesy of BBC R&D blog


Leverage the full power of the sensor
Two ALEXA Mini license upgrades are available, allowing users to get the most out of the camera’s 4:3 ALEV III sensor. The 4:3 License Key enables ALEXA Mini to record ProRes in 4:3, 4:3 cropped or 16:9 anamorphic and to de-squeeze both the viewfinder image and HD-SDI signal. The ARRIRAW License Key enables the camera to record 2.8K 16:9 ARRIRAW both internally and to an external recorder. Open Gate ARRIRAW recording is possible with cameras that have both license keys installed.

Better pixels, not just more
ARRI’s approach is unique in that it does not prioritize one element of image quality over any other. To achieve the highest overall image quality, ARRI uses bigger and better pixels on the sensor, rather than smaller pixels in larger numbers. The result is that ALEXA captures a wider dynamic range, truer colors, lower noise and more natural skin tones than other cameras, whether the chosen output is HD, 2K, 4K UHD or one of the native resolution outputs like uncompressed ARRIRAW 2.8K or ProRes 3.2K. This approach is vindicated by the huge numbers of professional filmmakers who choose ALEXA after extensive real‑world comparative testing.

Safe for future industry standards Images from the ALEXA Mini are uniquely suited to next‑generation HDR (High Dynamic Range) displays, which are likely to play a role in defining future format standards. In addition, the ALEXA Mini’s camera speeds of 0.75 – 200 fps allow it to be used not just for slow‑motion shots, but also for HFR (High Frame Rate) acquisition, which might constitute another strand of future standards. ARRI’s holistic approach to image quality makes ALEXA the most future-proof camera system available today, and the safest investment for tomorrow.


ALEXA Mini Technical Data

Product
ALEXA Mini
Camera type
35 mm format film-style digital camera with lightweight and compact carbon body, switchable active sensor area, support for ARRI MVF-1 viewfinder, built-in remote control capabilities via ARRI Electronic Control System and Wi-Fi, support for cforce motors, built-in motorized ND filters, interchangeable lens mounts and ARRI Lens Data System as well as Lens Data Archive.
Dimensions
Length: 185 mm/7.3" Width: 125 mm/4.9" Height: 140 mm/5.5" (camera body with PL lens mount) Click here for dimensional drawings
Weight
~ 2.3 kg/5 lbs (camera body with titanium PL lens mount)
Sensor
35 mm format ARRI ALEV III CMOS with Bayer pattern color filter array
Active photo sites (with surround view)
S16 HD: 1600 x 900 (1760 x 980) HD: 2880 x 1620 (3168 x 1772) 2K: 2868 x 1612 (3154 x 1764) 3.2K: 3200 x 1800 (3424 x 1926) 4K UHD: 3200 x 1800 (3424 x 1926) 4:3 2.8K: 2880 x 2160 (3168 x 2160) 2.39:1 2K Ana.: 2560 x 2145 (3424 x 2202) HD Ana.: 1920 x 2160 (3424 x 2202) Open Gate 3.4K: 3424 x 2202 (3424 x 2202)
Shutter
Electronic shutter, 5.0° to 356.0°
Exposure latitude
14+ stops over the entire sensitivity range from EI 160 to EI 3200 as measured with the ARRI Dynamic Range Test Chart (DRTC-1)
Exposure index
EI 800 base sensitivity
Filters
Built-in motorized ND filters 0.6, 1.2, 2.1
Lens mounts
Titanium PL mount with L-Bus connector and LDS EF mount PL mount with Hirose connector and LDS B4 mount with Hirose connector(A)
Recording media
CFast 2.0 memory cards
Recording formats
ProRes: S16 HD: 1920 x 1080 (up-sampled from 1600 x 900) HD: 1920 x 1080 2K Cine 16:9: 2048 x 1152 3.2K: 3200 x 1800 4K UHD: 3840 x 2160 (up-sampled from 3.2K) 4:3 2.8K: 2880 x 2160 (padded to 2944 x 2160) Anamorphic ProRes formats with 2x in-camera de-squeeze: HD Anamorphic: 1920 x 1080* 2.39:1 2K Anamorphic: 2048 x 858* MXF/ARRIRAW (in-camera recording to MXF-wrapped ARRIRAW files): 2.8K 16:9: 2880 x 1620** Open Gate: 3424 x 2202*** MXF/ARRIRAW Open Gate modes with active image area matching 4:3 ProRes modes: 4:3 2.8K (OG 3.4K): 2880 x 2160 (Recording in Open Gate 3.4K)*** 2.39:1 Ana. (OG 3.4K): 2560 x 2145 (Recording in Open Gate 3.4K)*** 16:9 HD Ana. (OG 3.4K): 1920 x 2160 (Recording in Open Gate 3.4K)*** *) requires ALEXA Mini 4:3 License Key, **) requires ALEXA Mini ARRIRAW License Key, ***) requires both ALEXA Mini 4:3 and ARRIRAW Licenses Keys Click here for a drawing with details about the recording areas, surround views and framelines
Recording codec
ProRes 4444XQ, 4444, 422 (HQ), 422, 422(LT), MXF/ARRIRAW
Recording frame rates
16:9 ProRes HD 0.75 - 200 fps ProRes S16 HD 0.75 - 200 fps ProRes 2K 0.75 - 200 fps ProRes 3.2K 0.75 - 60 fps ProRes UHD 0.75 - 60 fps MFX/ARRIRAW 16:9 2.8K 0.75 - 48 fps 4:3 ProRes 4:3 2.8K 0.75 - 50 fps 6:5* ProRes 2:39:1 2K Ana. 0.75 - 120 fps 8:9** ProRes HD Ana. 0.75 - 120 fps Open Gate MFX/ARRIRAW 3.4K Open Gate 0.75 - 30 fps * 4:3 cropped ** Center crop from anamorphic (1) Minimum frame rate is always 0.75 fps (2) The „recording resolution“ determines the number of horizontal pixels that will be recorded (the number of vertical pixels is dependent on the recording file type and sensor mode) Click here for a detailed table of frame rates
Color output
Rec 709, custom look or Log C
Look control
Import of custom 3D LUT, ASC CDL parameter (slope, offset, power, saturation)
Adjustable image parameters
Knee, gamma, saturation, black gamma, saturation by hue
Focus and exposure control
Peaking, zebra, false color, waveform
White balance
Manual and auto white balance
Sound level
< 20 dB(A) at standard frame rates
Environmental
'-20° C to +45° C (-4° F to +113° F) @ 95% humidity max, non-condensing splash and dust-proof through sealed electronics
Viewfinder
Multi Viewfinder MVF-1 (OLED and LCD) with flip-out LCD screen and military-grade connector to camera Camera Control Panel (CCP-1) LCD control panel with option to daisy-chain MVF-1
Control interface
Soft buttons and OSD on SDI output, integration of Transvideo Starlite HD5-ARRI touch interface WCU-4 hand-unit with control over operational parameters.
ARRI lens motor control
Built-in white coded radio interface for ARRI lens and camera remote control LBUS motor output for daisy-chainable cforce lens control motors Lens Data Archive
Wi-Fi remote control
Built-in Wi-Fi interface and web-based remote control from phones, tablets and laptops
Custom control
Optional GPIO interface for integration with custom control interfaces
Power input
Lemo 8-pin, 10.5-34 V DC
Video outputs
2x HD-SDI out 1.5G and 3G: uncompressed HD video with embedded audio and metadata, 6G SDI in UHD and 3.2K recording modes.
Inputs
SDI-Genlock (optional activation through ARRI Service), Timecode (in and output)
Other interfaces
USB 2.0 (for user sets, looks etc.) Ethernet for service and web remote control EXT accessory interface w. RS pin and unregulated power output (outputs battery voltage)

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