Olympus E-PM2 has a
16.0MP Four Thirds (17.3 x 13 mm ) sized CMOS sensor . On the other hand, Olympus E-M10 IV has a
20.0MP Four Thirds (17.4 x 13 mm ) sized CMOS sensor and features TruePic VIII processor.
Below you can see the E-PM2 and E-M10 IV sensor size comparison.
Sensor Size and Resolution Comparison image of Olympus E-PM2 and Olympus E-M10 IV Cameras
Olympus E-PM2 and Olympus E-M10 IV have almost the same sensor size, so neither of them has any significant advantage over the other in terms of providing control over depth of field when used with the 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
Olympus E-PM2
or the
Olympus E-M10 IV ,
including hyperfocal distance.
