Both Leica M10 and Canon 750D have 24.0 MP resolution sensors but Leica M10's sensor is Full frame (35.8 x 23.9 mm ) and Canon 750D's sensor is APS-C (22.3 x 14.9 mm ).
Since Leica M10's has a larger sensor area with the same resolution, this means that it also has a larger pixel area hence better light collecting capacity for a given aperture compared to Canon 750D.
Below you can see the M10 and 750D sensor size comparison.
Sensor Size and Resolution Comparison image of Leica M10 and Canon 750D Cameras
As seen above, Leica M10 has a 2.6x Larger sensor area than Canon 750D. 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.
DxOMark Sensor Scores
Both Leica M10 and Canon 750D sensors have been tested by DxoMark. DxoMark scores camera sensors for color depth (DXO Portrait), dynamic range (DXO Landscape) and low-light sensitivity (DXO Sports), and also gives them an overall score. Of the two cameras that we are comparing, M10 has scored 86, 15 points higher than 750D.
Model
Overall
Color Depth
Dynamic Range
Low-light ISO
Leica M10
86
24.4 bits
13.3 Evs
2133 ISO
Canon 750D
71
22.7 bits
12.0 Evs
919 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 M10
or the
Canon 750D ,
including hyperfocal distance.
One thing to watch when comparing these two: they have different sensor sizes
(Full frame 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.
