6K cameras are quickly going mainstream. The Canon EOS C500 Mark II 6K Camera is the latest one made for serious video professionals. It has a lightweight body and a 5.9K full-frame CMOS sensor capable of over 15 stops of dynamic range. It relies on DIGIC DV 7 Image Processor for 6K recording, dual pixel auto focus, and Canon RAW Light Recording.
The camera has 3 expansion units and user changeable lens mounts. The C500 Mark II also has 5-axis electronic stabilization that works with almost any lens. It has many other convenient features such as browser control, assignable buttons, waveform monitor, relay recording, geotagging, and fan control.