Leica Q3 43 has a
60.0MP Full frame (36 x 24 mm ) sized BSI-CMOS sensor and features Maestro IV processor. On the other hand, Canon R5 II has a
45.0MP Full frame (36 x 24 mm ) sized Stacked CMOS sensor and features Digic X processor.
Leica Q3 43's sensor provides 15MP more than Canon R5 II's sensor, which gives a significant advantage in real life. You can print your images larger or crop more freely.
On the other hand, please keep in mind that Max sensor resolution is not the only determinant of resolving power. Factors such as the optical elements, low pass filter, pixel size and sensor technology also affects the final resolution of the captured image.
Another difference between these two cameras is that Leica Q3 43'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 Q3 43 and R5 Mark II sensor size comparison.
Sensor Size and Resolution Comparison image of Leica Q3 43 and Canon R5 II Cameras
Leica Q3 43 and Canon R5 II 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.
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 Q3 43
or the
Canon R5 II ,
including hyperfocal distance.
