Panasonic GH7 has a
25.0MP Four Thirds (17.3 x 13 mm ) sized BSI CMOS sensor . On the other hand, Olympus E-P7 has a
20.0MP Four Thirds (17.4 x 13 mm ) sized CMOS sensor and features TruePic VIII processor.
Panasonic GH7's sensor provides 5MP more than Olympus E-P7'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 similarity between these two cameras is that both Olympus E-P7 and Panasonic GH7 sensors lack anti-alias (Low-Pass) filters. 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 GH7 and E-P7 sensor size comparison.
Sensor Size and Resolution Comparison image of Panasonic GH7 and Olympus E-P7 Cameras
Panasonic GH7 and Olympus E-P7 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
Panasonic GH7
or the
Olympus E-P7 ,
including hyperfocal distance.
