Z CAM E2-F6 II 6K has a
24.6MP Full frame (35.9 x 24.0 mm ) sized CMOS sensor . On the other hand, Canon R3 has a
24.0MP Full frame (36 x 24 mm ) sized Stacked CMOS sensor and features Digic X processor.
Below you can see the E2-F6 Mark II 6K and R3 sensor size comparison.
Sensor Size and Resolution Comparison image of Z CAM E2-F6 II 6K and Canon R3 Cameras
Z CAM E2-F6 II 6K and Canon R3 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
Z CAM E2-F6 II 6K
or the
Canon R3 ,
including hyperfocal distance.