Both Fujifilm X-Pro2 and Leica CL have APS-C sized 24.0 MP resolution sensors so sensor size and resolution is not a differentiator between these two cameras.
Another difference between these two cameras is that Fujifilm X-Pro2's sensor lacks 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 X-Pro2 and CL sensor size comparison.
Sensor Size and Resolution Comparison image of Fujifilm X-Pro2 and Leica CL Cameras
Fujifilm X-Pro2 and Leica CL 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
Fujifilm X-Pro2
or the
Leica CL ,
including hyperfocal distance.
