Canon M6 has a
24.0MP APS-C (22.3 x 14.9 mm ) sized CMOS sensor and features Digic 7 processor. On the other hand, Leica TL has a
16.0MP APS-C (23.6 x 15.7 mm ) sized CMOS sensor .
Canon M6's sensor provides 8MP more than Leica TL'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.
Below you can see the M6 and TL sensor size comparison.
Sensor Size and Resolution Comparison image of Canon M6 and Leica TL Cameras
As seen above, Leica TL has a 1.1x Larger sensor area than Canon M6. 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.
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
Canon M6
or the
Leica TL ,
including hyperfocal distance.