Ricoh GR II has a
16.0MP APS-C (23.7 x 15.7 mm ) sized CMOS sensor and features GR Engine V processor. On the other hand, Fujifilm X100 has a
12.0MP APS-C (23.6 x 15.8 mm ) sized CMOS sensor and features EXR processor.
One other difference between these two cameras that is worth mentioning is that Fujifilm X100's sensor doesn't have an anti-alias (Low-Pass) filter. 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 GR II and X100 sensor size comparison.
Sensor Size and Resolution Comparison image of Ricoh GR II and Fujifilm X100 Cameras
Ricoh GR II and Fujifilm X100 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.
DxOMark Sensor Scores
Both Ricoh GR II and Fujifilm X100 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, 7 points higher than X100.
Model
Overall
Color Depth
Dynamic Range
Low-light ISO
Ricoh GR II
80
23.6 bits
13.7 Evs
1078 ISO
Fujifilm X100
73
22.9 bits
12.4 Evs
1001 ISO
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
Ricoh GR II
or the
Fujifilm X100 ,
including hyperfocal distance.
