Both Nikon Z7 II and Nikon Z7 have Full frame sized 46.0 MP resolution sensors so sensor size and resolution is not a differentiator between these two cameras.
Another similarity between these two cameras is that both Nikon Z7 and Nikon Z7 II 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 Z7 Mark II and Z7 sensor size comparison.
Sensor Size and Resolution Comparison image of Nikon Z7 II and Nikon Z7 Cameras
Nikon Z7 II and Nikon Z7 have the same sensor sizes so they will provide same level of control over the depth of field when used with same focal length and aperture.
DxOMark Sensor Scores
Both Nikon Z7 II and Nikon Z7 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, Z7 Mark II has scored 100, 1 points higher than Z7.
Model
Overall
Color Depth
Dynamic Range
Low-light ISO
Nikon Z7 II
100
26.3 bits
14.7 Evs
2841 ISO
Nikon Z7
99
26.3 bits
14.6 Evs
2668 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
Nikon Z7 II
or the
Nikon Z7 ,
including hyperfocal distance.