Nikon 1 V3 has a
18.0MP 1' (13.2 x 8.8 mm ) sized CMOS sensor and features Expeed 4A processor. On the other hand, Sony RX100 VII has a
20.0MP 1″ (13.2 x 8.8 mm ) sized Stacked BSI-CMOS sensor and features Bionz X processor.
Below you can see the 1 V3 and RX100 VII sensor size comparison.
Sensor Size and Resolution Comparison image of Nikon 1 V3 and Sony RX100 VII Cameras
Nikon 1 V3 and Sony RX100 VII 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. On the other hand, since Nikon 1 V3 has 9% larger pixel area compared to Sony RX100 VII, it has potential to collect more light on pixel level hence have less noise in low light / High ISO images.
DxOMark Sensor Scores
DxOMark is a benchmark that scientifically assesses image quality of camera sensors. It 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. Nikon 1 V3 and Sony RX100 VII sensors have been tested by DxO and the results show that RX100 VII has a better overall score of 63, 11 points higher compared to 1 V3's score of 52.
Model
Overall
Color Depth
Dynamic Range
Low-light ISO
Nikon 1 V3
52
20.8 bits
10.7 Evs
384 ISO
Sony RX100 VII
63
21.8 bits
12.4 Evs
418 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 1 V3
or the
Sony RX100 VII ,
including hyperfocal distance.
One thing to watch when comparing these two: they have different sensor sizes
(1' versus 1″ ),
so compare them at the same framing rather than the same focal length.
Put the same focal length on the smaller sensor and it will show less depth of
field, not more, because it also crops tighter. The calculator shows the
full frame equivalent focal length for each body so you can match the framing.
