Fanny that actually, if we forget "full frame Canon 5D" .. and talk only about DIGITAL MOVIE CAMERAS, than we find the only Red-Scarlet have a "Crop Factor" which you need to remember when you shoot in different speed!
As we know - you cannot shoot VIDEO at 5K on it - it's only 12 fps.. .. so to shoot 24/25fps you need to shoot 4K, which is really crop part of Red Sensor off the frame... and finally, ... you will get only 2K at 60fps.. where camera crop your "RED MYSTERIUM-X" sensor to very little piece of silicon ...