ARRIRAW is ARRI’s format for uncompressed, unencrypted and uncompromised sensor data. It can be considered a digital version of the camera negative. ARRIRAW is the only format that retains the camera's natural color response and great exposure latitude as uncompressed and unprocessed sensor data.
Like film negative, ARRIRAW data has to be developed – or rather processed – in order to convert the single channel image, which represents the raw Bayer pattern sensor readout, into a color image suitable for normal viewing. The originally recorded raw data remains pristine, always providing the flexibility to go back and refine the results. This makes ARRIRAW the perfect format for digital cinematography and high quality visual effects production.
Our camera line-up supports in-camera recording of ARRIRAW or MXF/ARRIRAW data. MXF/ARRIRAW is ARRIRAW within a container format (*.mxf), hence one clip is only one file as opposed to some thousand files with every file being a single frame in the regular ARRIRAW format *.ari.
Older ALEXA cameras (ALEXA Classic, ALEXA Plus/Plus 4:3, ALEXA-M and ALEXA Studio) require an ARRI-certified external recorder which understands the T-Link signal.
You can download your copy of ARC here.
Testing Your Workflow
ARRI recommends running tests to define:
- How the intended look can be achieved using the chosen toolset(s).
- The different tools that need to be set up to meet the production's expectations of consistent results.
- The settings required for a chosen tool to most closely match the SDK reference results, if no other reference set of results are available.
You can use an ARRIRAW frame grab as test material. ARRI provides sample footage shot with our cameras on FTP server and Webgate..