Believe it or not, most award-winning animated productions today are shot on DSLR cameras — not more expensive film or video cameras. Canon EOS is the most popular line, since it supports RAW images, Live View and full remote control over a tether cable. This allows the camera to integrate tightly with Dragonframe’s software.
To reduce flicker (a known problem among animators), Canon’s automatic aperture lenses must be swapped out with a Nikon manual aperture lens. That way the shutter always returns to the same fully-closed position after each shot, unlike Canon’s lenses.
This requires an adapter ring, to mount a Nikon lens on a Canon body.