ALEXA XR Module Workflows - White Paper Page 4 of 9
SxS Camera Adapter for SxS PRO Cards
With the optional SxS Adapter, it is also possible to keep using SxS PRO cards for ProRes and DNxHD
recording in the modes that were available from the SxS module, except for simultaneous output to two
cards (dual recording).
Camera Setup
Without an external device to mount and no extra cables to run, rigging
the camera for an ARRIRAW shoot takes no longer than setting up the
recording for SxS cards. It is that simple.
All settings only need to be configured once and some settings even
disappear, as the recorder is no longer required to offer options for
other cameras. As a matter of fact, all the operator needs to do is to set
the 'INTERNAL' recording Mode (formerly called 'SxS CARDS') to
ARRIRAW, ProRes, or DNxHD, pop in an XR Capture Drive and be
ready to shoot.
Of course, the camera also needs to be set up for time code, ASA rating, white balance and such, but
changing the frame rate, for example, or switching the sensor between 16:9 and 4:3 does not require a trip
into the recorder's menus.
Media Access – Codex Platform
Depending on the recording mode of the XR Module – uncompressed ARRIRAW or compressed
ProRes/DNxHD – a capture drive is formatted with different volume mappings (file systems).
Uncompressed ARRIRAW Recording
When the XR Module is set to uncompressed ARRIRAW recording, an XR drive is initialized as a Codex
volume, offering 480 GB of high-performance drive space. This allows for 47 minutes of 16:9 ARRIRAW
recording at 24fps or 9 minutes of ARRIRAW at 120fps.
The Codex Virtual File System (VFS)
When a Capture Drive with ARRIRAW footage is loaded on a computer, it shows up like a regular external
drive. Operating underneath, however, is the Codex Virtual File System (VFS). The VFS can present, for
example, readily processed DPX files, MXF/DNxHD and/or QuickTime/ProRes proxies next to the original
ARI files on the Codex volume. Except for the recorded data on the drive, none of these additional files
actually exist. It's only when these files are requested, that they are generated, on-demand, and on the fly.
Hence the term "virtual".
The file formats, file naming and directory
structure that will be presented by the VFS
are fully configurable through the Codex
Platform software. This makes the VFS a
highly flexible tool for providing exactly the
material you require, when you want it,
without redundant processing and storage
overhead on your drives.
(27 pages)
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