Both Ricoh GR II and Panasonic GX7 have 16.0 MP resolution sensors but Ricoh GR II's sensor is APS-C (23.7 x 15.7 mm ) and Panasonic GX7's sensor is Four Thirds (17.3 x 13 mm ).
Since Ricoh GR II'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 Panasonic GX7.
Below you can see the GR II and GX7 sensor size comparison.
As seen above, Ricoh GR II has a 1.7x Larger sensor area than Panasonic GX7. 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.
DxOMark Sensor Scores
Both Ricoh GR II and Panasonic GX7 sensors have been tested by DxoMark. DxoMark scores camera sensors for color depth (DXO Portrait), dynamic range (DXO Landscape) and low-light sensitivity (DXO Sports), and also gives them an overall score. Of the two cameras that we are comparing, GR II has scored 80, 10 points higher than GX7.
Model |
Overall |
Color Depth |
Dynamic Range |
Low-light ISO |
Ricoh GR II |
80 |
23.6 bits |
13.7 Evs |
1078 ISO |
Panasonic GX7 |
70 |
22.6 bits |
12.2 Evs |
718 ISO |