Both Canon R6 and Olympus E-M1X have 20.0 MP resolution sensors but Canon R6's sensor is Full frame (36 x 24 mm ) and Olympus E-M1X's sensor is Four Thirds (17.4 x 13 mm ).
Since Canon R6'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 Olympus E-M1X.
Below you can see the R6 and E-M1X sensor size comparison.
Sensor Size and Resolution Comparison image of Canon R6 and Olympus E-M1X Cameras
As seen above, Canon R6 has a 3.8x Larger sensor area than Olympus E-M1X. 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 R6
or the
Olympus E-M1X ,
including hyperfocal distance.
One thing to watch when comparing these two: they have different sensor sizes
(Full frame versus Four Thirds),
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.
