The Arriflex D-20 is a film-style digital motion picture camera made by Arri first introduced in November 2005.
Though the D-20 system is capable of variable speeds from 1 to 60 frames per second, in RAW Data mode these are currently limited to 23.976 frame/s, 24 frame/s, 25 frame/s, 29.97 frame/s & 30 frame/s per second.
The sensitivity of the camera in Data mode is regulated by applying LUTs in the outboard processing of the image.
Of the currently available high resolution digital motion picture cameras, the Dalsa Origin, the SI 2K and the D-20 feature detachable optical viewfinders.
The D-20 also accepts a traditional film style video assist system, sharing the image available through the optical viewfinder.