SUP 2.0 for ALEXA SXT cameras

ALEXA SXT Software Update Package SUP 2.0 is now available for ALEXA SXT cameras. Aside from support for the new ALEXA SXT W camera, SXT SUP 2.0 contains some important new features, like better High Dynamic Range (HDR) monitoring as well as a number of refinements, like more options for false color modes, support for SxS PRO+ 128 and 256 GB cards and better integration with the WCU-4 and the ARRI Electronic Control System.

ALEXA SXT W cameras already have SXT SUP 2.0 installed, so those do not need to be updated. For all other ALEXA SXT models, we recommend installing this free-of-charge update. The update is available for download at http://www.arri.com/de/camera/alexa/downloads.

While we always recommend reading the full release notes, which can be found at http://www.arri.com/de/camera/alexa/downloads, here is a summary of the most important new features:

Support for Wireless video (ALEXA SXT W only)
ALEXA SXT W camera bodies have a High Definition (HD) video transmitter integrated into the camera. The transmitter sends the video signal of MON OUT 3 to the ARRI Wireless Video Receiver (WVR-1) or Transvideo Starlite ARRI-WVS monitor. 



The ALEXA SXT W wireless video requires no setup in the camera's menu aside from power on/off. MON OUT 3 and the signal for the wireless video transmitter are the same; whatever is set on MON OUT 3 will be output on the MON OUT 3 BNC connector and will also be transmitted.



ALEXA SXT W is part of a complete ARRI Wireless Video System, which further includes a stand-alone transmitter, stand-alone receiver and an extensive range of mechanical and electronic accessories. For more information, go to http://www.arri.com/camera/alexa/cameras/camera_details/alexa-sxt-w.



Support for WiFi (ALEXA SXT W only)
ALEXA SXT W camera bodies have a WiFi radio integrated into the camera body. With the WiFi radio, wireless look control and wireless camera control from any WiFi device are possible. For wireless camera control, use the ALEXA Web Remote function (see ALEXA manual). For wireless look control, use one of the following programs (more are in development):

  • Pomfort LiveGrade
  • Codex Live
  • Colorfront On-Set Live
  • Filmlight Prelight
  • Technicolor DP Lights


Faster frame grabs
(ALEXA SXT W only)
ALEXA SXT W cameras include the new CMC-2 board in contrast to older cameras, which use the CMC-1 board. The CMC board holds the SD card. Due to the newer generation board, frame grabs can be saved faster onto SD cards with the ALEXA SXT W.

Improved HDR monitoring (all ALEXA SXT cameras)

Default look files for PQ and HLG
ALEXA SXT SUP 2.0 includes two new default ARRI Look Files (ALF-2) for HDR monitoring: 'ARRI 2100 HLG 1K 200' and ' ARRI 2100 PQ 1K 200'. Both files are based on SMPTE standard ST 2100 and designed for a monitor with 1,000 nits. One file is designed for the PQ (Perceptual Quantizer) EOTF tone curve and the other for the HLG (Hybrid Log Gamma) EOTF tone curve.

A more extensive list of HDR look files for monitoring and 3D LUTs for post-production with detailed descriptions can be found on the ARRI HDR FAQ web page at www.arri.com/camera/alexa/learn/hdr_faq at the end of the second introduction paragraph.

Automatically matched status brightness for HDR
Simply scaling up the brightness and saturation of informational overlays with the HDR look file has proven to result in distractingly bright and super saturated overlays. Therefore, the brightness and saturation of informational overlays (frame lines, text, icons, LDS info, electronic level indication) will now be reduced for those image paths with an HDR look file activated. Different reductions will be used for PQ and HLG.

HDR metadata
When using HDR look files, the camera records in metadata that an HDR PQ or HDR HLG look file is used.

False Color Mode (all ALEXA SXT cameras)
The result of activating false color can now be varied with a choice in the MONITORING menu to either 'Log C-based' or 'Monitoring-based'. This choice is global and will be valid for all monitor outputs.



Log C-based
When choosing 'Log C-based false color', false color is always calculated based on the Log C image. When false color is activated (with the EXP button on the viewfinder, for example), the respective monitoring output is switched to Log C, false color levels are calculated based on the Log C signal and false color is turned on. When de-activating false color, the image path is switched back to its previous setting and false color is turned off.

This setting makes most sense for projects that record Log C images (on the camera right display from the HOME screen: COLOR button > REC processing > LOG C), which is the majority of projects shot with ALEXA cameras. While your monitoring image paths can be set to show Rec 709 or a look to provide a preview for all, you will want to know the exposure levels of the signal you are actually recording (Log C) when checking false color.

'Log C-based false color' mode should also be chosen when activating an HDR ALF-2 file.

Monitoring-based
When choosing 'monitoring-based false color' and false color is activated (with the EXP button on the viewfinder, for example), false color is calculated based on the video signal of the respective monitoring output. In other words, whatever is seen on the image path is the basis for calculating false color. This is the same behavior as in ALEXA SXT software SUP 1.0: if you have a monitor output or the viewfinder configured to show Log C, false color levels will be calculated based on the Log C signal. If you have a monitor output or the viewfinder configured to show a look file, false color levels will be calculated based on the image with the look applied.

'Monitoring-based false color' makes most sense when baking a look file into the recorded image (on the camera right display from the HOME screen: COLOR button > REC processing > Look file). It allows you to monitor the exposure levels of the signal you are recording. Looking at 'Log C-based' false color makes no sense in this case, as you are not recording the Log C signal and will therefore not have the Log C image available in post.

Support for SxS PRO+ 128 and 256 GB cards (all ALEXA SXT cameras)
Supported media for all ALEXA SXT cameras with SXT SUP 2.0 include now:

  • SXR Capture Drives 1 TB (CDX-37019)
  • SXR Capture Drives 2 TB (CDX-37021)
  • XR Capture Drives 512 GB (CDX-3730)
  • SxS PRO cards 64 GB (SBP-64A)
  • SxS PRO+ cards 64 GB (SBP-64B, SBP-64C, SBP-64D)
  • SxS PRO+ cards 128 GB (SBP-128B, SBP-128C, SBP-128D, SBP-128E)
  • SxS PRO+ cards 256 GB (SBP-256D, SBP-256E)
  • LEXAR Professional 3600x CFast 2.0 cards 256 GB (LC256Cxxxx3600, LC256Cxxxx3600 G2)


Expanded ARRI Electronic Control System support
(all ALEXA SXT cameras)

Live camera information (warnings & errors) on WCU-4
Camera errors and warnings are shown on the WCU-4.

Separate control of MON OUT 1, 2 and 3
Users can select the settings (e.g. SDI peaking On/Off, SDI exposure tool On/Off and others) of multiple SDI monitor outputs in the WCU-4 submenu CAM>MONOUT>Mon CNG, depending on the number of outputs available.

Faster Controlled Lens Motor (CLM) response
ALEXA SXT SUP 2.0 allows Controlled Lens Motors (CLM) to respond faster to control signals.

Lens motor auto teeth detection for accurate WCU-4 lens data display
ALEXA SXT cameras with SUP 2.0 can automatically detect if a lens motor is equipped with 50 teeth (standard ARRI CLM-4 gear; slower but more torque) or with 60 teeth (standard cforce plus gear; faster but less torque) in order to show proper lens data information on the WCU-4.



ALEXA SXT Software Update Package 2.0 (ALEXA SXT ONLY!)
17 Oct 2017 ALEXA SXT SUP 2.0 - Release Notes
Download (pdf, 300 KB)
17 Oct 2017 ALEXA SXT SUP 2.0 - User Manual
Download (pdf, 9.64 MB)
17 Oct 2017 ALEXA SXT SUP 2.0 39120
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