RED Komodo-X 6K has a
19.9MP Super 35 (27.03 x 14.26 mm ) sized CMOS sensor . On the other hand, Pentax K-5 IIs has a
16.0MP APS-C (23.7 x 15.7 mm ) sized CMOS sensor and features Prime II processor.
One other difference between these two cameras that is worth mentioning is that Pentax K-5 IIs's sensor doesn't have an anti-alias (Low-Pass) filter. Removing anti-alias filter increases the sharpness and level of detail but at the same time, it increases the chance of moiré occurring in certain scenes.
Below you can see the Komodo-X 6K and K-5 IIs sensor size comparison.
Sensor Size and Resolution Comparison image of RED Komodo-X 6K and Pentax K-5 IIs Cameras
RED Komodo-X 6K and Pentax K-5 IIs have almost the same sensor size, so neither of them has any significant advantage over the other in terms of providing control over depth of field when used with the same focal length and aperture.
Sensor size sets the circle of confusion, so it drives how much depth of field each
of these bodies gives you at a given aperture. You can calculate it exactly for the
RED Komodo-X 6K
or the
Pentax K-5 IIs ,
including hyperfocal distance.
One thing to watch when comparing these two: they have different sensor sizes
(Super 35 versus APS-C),
so compare them at the same framing rather than the same focal length.
Put the same focal length on the smaller sensor and it will show less depth of
field, not more, because it also crops tighter. The calculator shows the
full frame equivalent focal length for each body so you can match the framing.