Based on ARRI Imaging Technology (AIT), the D-21 has a single, Super 35 sized CMOS sensor and uses the same lenses as 35mm film cameras.
It also has the same cinematic depth of field and can be used with anamorphic lenses.
The D-21 outputs either the raw sensor data for a 2K workflow - or a standard HD signal. It has an optical viewfinder and a 10-bit 4:4:4 1080P LOG output mode.
The new ARRIRAW format contains the raw sensor information and can be used up to 30 frames per second.
ARRI software tools that are currently in beta testing can process the ARRIRAW files through advanced debayering algorithms.
The ARRI software can output either an HD image or a 2K data file. 2K data files are similar to the files created by a scanner and are as easy to grade as scanned data. Thus the D-21 can supply image content for the existing 2K workflow.
Since the raw data format transports all pixels of the 4:3 aspect ratio D-21 sensor, the D-21 is the only digital camera that allows plug and play use of standard anamorphic lenses.
Arri has also introduced the Arrilaser HD/DI, an entry level film recorder for digital intermediate (DI) recording up to 2K (or 4k with an upgrade).