Z CAM E2 4K has a
10.3MP Four Thirds (19 x 13 mm ) sized CMOS sensor . On the other hand, Blackmagic Cinema 4K has a
9.0MP Four Thirds (19 x 10 mm ) sized CMOS sensor .
Below you can see the E2 and Cinema Camera 4K sensor size comparison.
Sensor Size and Resolution Comparison image of Z CAM E2 4K and Blackmagic Cinema 4K Cameras
As seen above, Z CAM E2 4K has a 1.3x Larger sensor area than Blackmagic Cinema 4K. Larger sensors give photographer more control on the depth of field and blurry background compared to smaller sensor when shot in 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
Z CAM E2 4K
or the
Blackmagic Cinema 4K ,
including hyperfocal distance.