Nikon Z7 II has a
46.0MP Full frame (35.9 x 23.9 mm ) sized BSI-CMOS sensor and features Dual Expeed 6 processor. On the other hand, Sony A7R II has a
42.0MP Full frame (35.9 x 24 mm ) sized BSI-CMOS sensor and features Bionz X processor.
Another similarity between these two cameras is that both Sony A7R II 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 A7R II sensor size comparison.
Sensor Size and Resolution Comparison image of Nikon Z7 II and Sony A7R II Cameras
Nikon Z7 II and Sony A7R II 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 Nikon Z7 II and Sony A7R II 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, 2 points higher than A7R II.
Model
Overall
Color Depth
Dynamic Range
Low-light ISO
Nikon Z7 II
100
26.3 bits
14.7 Evs
2841 ISO
Sony A7R II
98
26.0 bits
13.9 Evs
3434 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
Sony A7R II ,
including hyperfocal distance.
