Both Leica M11-D and Leica M11 Monochrom have Full frame sized 60.0 MP resolution sensors so sensor size and resolution is not a differentiator between these two cameras.
Below you can see the M11-D and M11 Monochrom sensor size comparison.
Sensor Size and Resolution Comparison image of Leica M11-D and Leica M11 Monochrom Cameras
Leica M11-D and Leica M11 Monochrom have the same sensor sizes so they will provide same level of control over the depth of field when used with same focal length and aperture.
DxOMark Sensor Scores
At Camera Decision, we also look at Dxo Mark sensors when available as we think it is a good indicator of image quality.
Model
Overall
Color Depth
Dynamic Range
Low-light ISO
Leica M11-D
100
26.3 bits
14.8 Evs
3376 ISO
Leica M11 Monochrom
100
26.3 bits
14.8 Evs
3376 ISO
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
Leica M11-D
or the
Leica M11 Monochrom ,
including hyperfocal distance.